Building an MTCollection

The first step to analyzing a set of transfer functions is to load them into an MTCollection which is just a wrapper around an MTH5 file. The advantage to doing this is that you only have to do this once from the various transfer functions that you have, which might include various flavors of EDI, EMTFXML, J-files, Z-files, AVG-files, etc. The other advantage is that now you have a database to work with: a single file where data is readily accessible vs. multiple ASCII files that need to be read in each time you want to do something.

Using the class MT any[1] transfer function can be read into a generic transfer function container MT. If you want to adjust survey.id or other metadata attributes you can do it from the MT object.

1. [^](#fn1) It works 100% of the time 50% of the time. Most transfer function files are supported but if you find one is not raise an issue

Test Data

Test data can be found at mtpy-data. Installation instructions are included in README.

from mtpy_data import GRID_LIST, PROFILE_LIST

1. Initiate MTCollection

First initiate an MTCollection, here we will save to our current working directory.

from pathlib import Path
from mtpy import MT, MTCollection

mtc = MTCollection()

mtc.open_collection(Path().cwd().joinpath("test_mt_collection.h5"))

26:05:06T23:12:20 | INFO | line:900 |mth5.mth5 | _initialize_file | Initialized MTH5 0.2.0 file c:\Users\peaco\OneDrive\Documents\GitHub\mtpy-v2\docs\source\notebooks\test_mt_collection.h5 in mode a
26:05:06T23:12:20 | WARNING | line:441 |mtpy.core.mt_collection | open_collection | Failed to initialize mt_data: Invalid HDF5 object reference

2. Load Transfer Functions

Step one is locating all the transfer function files you want to read in. Here we will read in a couple different folders. If you have a couple different sets of data from different surveys, the MTCollection will store each in a survey group named by the MT.survey_metadata.id. However, this isn’t a common attribute in EDI files, so if you want to separate them out add the correct survey ID.

Note: Loading transfer functions into an MTCollection can take some time so if you have over 100 be patient. But you only have to do this once.

2a. Load Profile Data

The profile data does not have a survey.id in the EDI files so we will add one.

%%time
for fn in PROFILE_LIST:
    mt_object = MT()
    mt_object.read(fn)
    mt_object.survey_metadata.id = "profile"
    mtc.add_tf(mt_object)

26:05:06T23:12:20 | WARNING | line:591 |mt_metadata.base.metadata | update | Cannot update <class 'mt_metadata.timeseries.auxiliary.Auxiliary'> with <class 'mt_metadata.timeseries.magnetic.Magnetic'>
26:05:06T23:12:20 | WARNING | line:591 |mt_metadata.base.metadata | update | Cannot update <class 'mt_metadata.timeseries.auxiliary.Auxiliary'> with <class 'mt_metadata.timeseries.magnetic.Magnetic'>
26:05:06T23:12:20 | WARNING | line:563 |mtpy.core.mt_collection | add_tf | If you are adding multiple transfer functions, suggest making a list of transfer functions first then adding the list using mt_collection.add_tf([list_of_tfs]). Otherwise adding transfer functions one by one will be slow.
26:05:06T23:12:20 | WARNING | line:1479 |mth5.mth5 | get_survey | /Experiment/Surveys/profile does not exist, check survey_list for existing names.
26:05:06T23:12:21 | INFO | line:749 |mtpy.core.mt_collection | _from_mt_object | added profile.15125A
26:05:06T23:12:21 | WARNING | line:591 |mt_metadata.base.metadata | update | Cannot update <class 'mt_metadata.timeseries.auxiliary.Auxiliary'> with <class 'mt_metadata.timeseries.magnetic.Magnetic'>
26:05:06T23:12:21 | WARNING | line:591 |mt_metadata.base.metadata | update | Cannot update <class 'mt_metadata.timeseries.auxiliary.Auxiliary'> with <class 'mt_metadata.timeseries.magnetic.Magnetic'>
26:05:06T23:12:21 | WARNING | line:563 |mtpy.core.mt_collection | add_tf | If you are adding multiple transfer functions, suggest making a list of transfer functions first then adding the list using mt_collection.add_tf([list_of_tfs]). Otherwise adding transfer functions one by one will be slow.
26:05:06T23:12:21 | INFO | line:749 |mtpy.core.mt_collection | _from_mt_object | added profile.15126A
26:05:06T23:12:21 | WARNING | line:591 |mt_metadata.base.metadata | update | Cannot update <class 'mt_metadata.timeseries.auxiliary.Auxiliary'> with <class 'mt_metadata.timeseries.magnetic.Magnetic'>
26:05:06T23:12:21 | WARNING | line:591 |mt_metadata.base.metadata | update | Cannot update <class 'mt_metadata.timeseries.auxiliary.Auxiliary'> with <class 'mt_metadata.timeseries.magnetic.Magnetic'>
26:05:06T23:12:21 | WARNING | line:563 |mtpy.core.mt_collection | add_tf | If you are adding multiple transfer functions, suggest making a list of transfer functions first then adding the list using mt_collection.add_tf([list_of_tfs]). Otherwise adding transfer functions one by one will be slow.
26:05:06T23:12:22 | INFO | line:749 |mtpy.core.mt_collection | _from_mt_object | added profile.15127A
26:05:06T23:12:22 | WARNING | line:591 |mt_metadata.base.metadata | update | Cannot update <class 'mt_metadata.timeseries.auxiliary.Auxiliary'> with <class 'mt_metadata.timeseries.magnetic.Magnetic'>
26:05:06T23:12:22 | WARNING | line:591 |mt_metadata.base.metadata | update | Cannot update <class 'mt_metadata.timeseries.auxiliary.Auxiliary'> with <class 'mt_metadata.timeseries.magnetic.Magnetic'>
26:05:06T23:12:22 | WARNING | line:563 |mtpy.core.mt_collection | add_tf | If you are adding multiple transfer functions, suggest making a list of transfer functions first then adding the list using mt_collection.add_tf([list_of_tfs]). Otherwise adding transfer functions one by one will be slow.
26:05:06T23:12:22 | INFO | line:749 |mtpy.core.mt_collection | _from_mt_object | added profile.15128A
26:05:06T23:12:22 | WARNING | line:591 |mt_metadata.base.metadata | update | Cannot update <class 'mt_metadata.timeseries.auxiliary.Auxiliary'> with <class 'mt_metadata.timeseries.magnetic.Magnetic'>
26:05:06T23:12:22 | WARNING | line:591 |mt_metadata.base.metadata | update | Cannot update <class 'mt_metadata.timeseries.auxiliary.Auxiliary'> with <class 'mt_metadata.timeseries.magnetic.Magnetic'>
26:05:06T23:12:22 | WARNING | line:563 |mtpy.core.mt_collection | add_tf | If you are adding multiple transfer functions, suggest making a list of transfer functions first then adding the list using mt_collection.add_tf([list_of_tfs]). Otherwise adding transfer functions one by one will be slow.
26:05:06T23:12:23 | INFO | line:749 |mtpy.core.mt_collection | _from_mt_object | added profile.15129A
26:05:06T23:12:23 | WARNING | line:591 |mt_metadata.base.metadata | update | Cannot update <class 'mt_metadata.timeseries.auxiliary.Auxiliary'> with <class 'mt_metadata.timeseries.magnetic.Magnetic'>
26:05:06T23:12:23 | WARNING | line:591 |mt_metadata.base.metadata | update | Cannot update <class 'mt_metadata.timeseries.auxiliary.Auxiliary'> with <class 'mt_metadata.timeseries.magnetic.Magnetic'>
26:05:06T23:12:23 | WARNING | line:563 |mtpy.core.mt_collection | add_tf | If you are adding multiple transfer functions, suggest making a list of transfer functions first then adding the list using mt_collection.add_tf([list_of_tfs]). Otherwise adding transfer functions one by one will be slow.
26:05:06T23:12:23 | INFO | line:749 |mtpy.core.mt_collection | _from_mt_object | added profile.15130A
26:05:06T23:12:23 | WARNING | line:591 |mt_metadata.base.metadata | update | Cannot update <class 'mt_metadata.timeseries.auxiliary.Auxiliary'> with <class 'mt_metadata.timeseries.magnetic.Magnetic'>
26:05:06T23:12:23 | WARNING | line:591 |mt_metadata.base.metadata | update | Cannot update <class 'mt_metadata.timeseries.auxiliary.Auxiliary'> with <class 'mt_metadata.timeseries.magnetic.Magnetic'>
26:05:06T23:12:23 | WARNING | line:563 |mtpy.core.mt_collection | add_tf | If you are adding multiple transfer functions, suggest making a list of transfer functions first then adding the list using mt_collection.add_tf([list_of_tfs]). Otherwise adding transfer functions one by one will be slow.
26:05:06T23:12:24 | INFO | line:749 |mtpy.core.mt_collection | _from_mt_object | added profile.16122A
26:05:06T23:12:24 | WARNING | line:591 |mt_metadata.base.metadata | update | Cannot update <class 'mt_metadata.timeseries.auxiliary.Auxiliary'> with <class 'mt_metadata.timeseries.magnetic.Magnetic'>
26:05:06T23:12:24 | WARNING | line:591 |mt_metadata.base.metadata | update | Cannot update <class 'mt_metadata.timeseries.auxiliary.Auxiliary'> with <class 'mt_metadata.timeseries.magnetic.Magnetic'>
26:05:06T23:12:24 | WARNING | line:563 |mtpy.core.mt_collection | add_tf | If you are adding multiple transfer functions, suggest making a list of transfer functions first then adding the list using mt_collection.add_tf([list_of_tfs]). Otherwise adding transfer functions one by one will be slow.
26:05:06T23:12:24 | INFO | line:749 |mtpy.core.mt_collection | _from_mt_object | added profile.16123A
26:05:06T23:12:25 | WARNING | line:591 |mt_metadata.base.metadata | update | Cannot update <class 'mt_metadata.timeseries.auxiliary.Auxiliary'> with <class 'mt_metadata.timeseries.magnetic.Magnetic'>
26:05:06T23:12:25 | WARNING | line:591 |mt_metadata.base.metadata | update | Cannot update <class 'mt_metadata.timeseries.auxiliary.Auxiliary'> with <class 'mt_metadata.timeseries.magnetic.Magnetic'>
26:05:06T23:12:25 | WARNING | line:563 |mtpy.core.mt_collection | add_tf | If you are adding multiple transfer functions, suggest making a list of transfer functions first then adding the list using mt_collection.add_tf([list_of_tfs]). Otherwise adding transfer functions one by one will be slow.
26:05:06T23:12:25 | INFO | line:749 |mtpy.core.mt_collection | _from_mt_object | added profile.16124A
26:05:06T23:12:25 | WARNING | line:591 |mt_metadata.base.metadata | update | Cannot update <class 'mt_metadata.timeseries.auxiliary.Auxiliary'> with <class 'mt_metadata.timeseries.magnetic.Magnetic'>
26:05:06T23:12:25 | WARNING | line:591 |mt_metadata.base.metadata | update | Cannot update <class 'mt_metadata.timeseries.auxiliary.Auxiliary'> with <class 'mt_metadata.timeseries.magnetic.Magnetic'>
26:05:06T23:12:25 | WARNING | line:563 |mtpy.core.mt_collection | add_tf | If you are adding multiple transfer functions, suggest making a list of transfer functions first then adding the list using mt_collection.add_tf([list_of_tfs]). Otherwise adding transfer functions one by one will be slow.
26:05:06T23:12:25 | INFO | line:749 |mtpy.core.mt_collection | _from_mt_object | added profile.16125A
26:05:06T23:12:26 | WARNING | line:591 |mt_metadata.base.metadata | update | Cannot update <class 'mt_metadata.timeseries.auxiliary.Auxiliary'> with <class 'mt_metadata.timeseries.magnetic.Magnetic'>
26:05:06T23:12:26 | WARNING | line:591 |mt_metadata.base.metadata | update | Cannot update <class 'mt_metadata.timeseries.auxiliary.Auxiliary'> with <class 'mt_metadata.timeseries.magnetic.Magnetic'>
26:05:06T23:12:26 | WARNING | line:563 |mtpy.core.mt_collection | add_tf | If you are adding multiple transfer functions, suggest making a list of transfer functions first then adding the list using mt_collection.add_tf([list_of_tfs]). Otherwise adding transfer functions one by one will be slow.
26:05:06T23:12:26 | INFO | line:749 |mtpy.core.mt_collection | _from_mt_object | added profile.16126A
26:05:06T23:12:26 | WARNING | line:591 |mt_metadata.base.metadata | update | Cannot update <class 'mt_metadata.timeseries.auxiliary.Auxiliary'> with <class 'mt_metadata.timeseries.magnetic.Magnetic'>
26:05:06T23:12:26 | WARNING | line:591 |mt_metadata.base.metadata | update | Cannot update <class 'mt_metadata.timeseries.auxiliary.Auxiliary'> with <class 'mt_metadata.timeseries.magnetic.Magnetic'>
26:05:06T23:12:26 | WARNING | line:563 |mtpy.core.mt_collection | add_tf | If you are adding multiple transfer functions, suggest making a list of transfer functions first then adding the list using mt_collection.add_tf([list_of_tfs]). Otherwise adding transfer functions one by one will be slow.
26:05:06T23:12:27 | INFO | line:749 |mtpy.core.mt_collection | _from_mt_object | added profile.16127A
CPU times: total: 5.88 s
Wall time: 6.53 s

2b. Load Grid Data

The grid data also does not have a survey.id so we will add one.

%%time
for fn in GRID_LIST:
    mt_object = MT()
    mt_object.read(fn)
    mt_object.survey_metadata.id = "grid"
    mtc.add_tf(mt_object)

26:05:06T23:12:27 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts_per_kilometer_per_nanotesla' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:27 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:27 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:27 | WARNING | line:563 |mtpy.core.mt_collection | add_tf | If you are adding multiple transfer functions, suggest making a list of transfer functions first then adding the list using mt_collection.add_tf([list_of_tfs]). Otherwise adding transfer functions one by one will be slow.
26:05:06T23:12:27 | WARNING | line:1479 |mth5.mth5 | get_survey | /Experiment/Surveys/grid does not exist, check survey_list for existing names.
26:05:06T23:12:27 | INFO | line:749 |mtpy.core.mt_collection | _from_mt_object | added grid.gv100
26:05:06T23:12:27 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts_per_kilometer_per_nanotesla' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:27 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:27 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:27 | WARNING | line:563 |mtpy.core.mt_collection | add_tf | If you are adding multiple transfer functions, suggest making a list of transfer functions first then adding the list using mt_collection.add_tf([list_of_tfs]). Otherwise adding transfer functions one by one will be slow.
26:05:06T23:12:28 | INFO | line:749 |mtpy.core.mt_collection | _from_mt_object | added grid.gv101
26:05:06T23:12:28 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts_per_kilometer_per_nanotesla' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:28 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:28 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:28 | WARNING | line:563 |mtpy.core.mt_collection | add_tf | If you are adding multiple transfer functions, suggest making a list of transfer functions first then adding the list using mt_collection.add_tf([list_of_tfs]). Otherwise adding transfer functions one by one will be slow.
26:05:06T23:12:28 | INFO | line:749 |mtpy.core.mt_collection | _from_mt_object | added grid.gv102
26:05:06T23:12:28 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts_per_kilometer_per_nanotesla' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:28 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:28 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:28 | WARNING | line:563 |mtpy.core.mt_collection | add_tf | If you are adding multiple transfer functions, suggest making a list of transfer functions first then adding the list using mt_collection.add_tf([list_of_tfs]). Otherwise adding transfer functions one by one will be slow.
26:05:06T23:12:29 | INFO | line:749 |mtpy.core.mt_collection | _from_mt_object | added grid.gv103
26:05:06T23:12:29 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts_per_kilometer_per_nanotesla' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:29 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:29 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:29 | WARNING | line:563 |mtpy.core.mt_collection | add_tf | If you are adding multiple transfer functions, suggest making a list of transfer functions first then adding the list using mt_collection.add_tf([list_of_tfs]). Otherwise adding transfer functions one by one will be slow.
26:05:06T23:12:29 | INFO | line:749 |mtpy.core.mt_collection | _from_mt_object | added grid.gv104
26:05:06T23:12:29 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts_per_kilometer_per_nanotesla' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:29 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:29 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:29 | WARNING | line:563 |mtpy.core.mt_collection | add_tf | If you are adding multiple transfer functions, suggest making a list of transfer functions first then adding the list using mt_collection.add_tf([list_of_tfs]). Otherwise adding transfer functions one by one will be slow.
26:05:06T23:12:30 | INFO | line:749 |mtpy.core.mt_collection | _from_mt_object | added grid.gv105
26:05:06T23:12:30 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts_per_kilometer_per_nanotesla' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:30 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:30 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:30 | WARNING | line:563 |mtpy.core.mt_collection | add_tf | If you are adding multiple transfer functions, suggest making a list of transfer functions first then adding the list using mt_collection.add_tf([list_of_tfs]). Otherwise adding transfer functions one by one will be slow.
26:05:06T23:12:30 | INFO | line:749 |mtpy.core.mt_collection | _from_mt_object | added grid.gv106
26:05:06T23:12:30 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts_per_kilometer_per_nanotesla' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:30 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:30 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:30 | WARNING | line:563 |mtpy.core.mt_collection | add_tf | If you are adding multiple transfer functions, suggest making a list of transfer functions first then adding the list using mt_collection.add_tf([list_of_tfs]). Otherwise adding transfer functions one by one will be slow.
26:05:06T23:12:31 | INFO | line:749 |mtpy.core.mt_collection | _from_mt_object | added grid.gv107
26:05:06T23:12:31 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts_per_kilometer_per_nanotesla' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:31 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:31 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:31 | WARNING | line:563 |mtpy.core.mt_collection | add_tf | If you are adding multiple transfer functions, suggest making a list of transfer functions first then adding the list using mt_collection.add_tf([list_of_tfs]). Otherwise adding transfer functions one by one will be slow.
26:05:06T23:12:31 | INFO | line:749 |mtpy.core.mt_collection | _from_mt_object | added grid.gv108
26:05:06T23:12:31 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts_per_kilometer_per_nanotesla' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:31 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:31 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:31 | WARNING | line:563 |mtpy.core.mt_collection | add_tf | If you are adding multiple transfer functions, suggest making a list of transfer functions first then adding the list using mt_collection.add_tf([list_of_tfs]). Otherwise adding transfer functions one by one will be slow.
26:05:06T23:12:32 | INFO | line:749 |mtpy.core.mt_collection | _from_mt_object | added grid.gv109
26:05:06T23:12:32 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts_per_kilometer_per_nanotesla' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:32 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:32 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:32 | WARNING | line:563 |mtpy.core.mt_collection | add_tf | If you are adding multiple transfer functions, suggest making a list of transfer functions first then adding the list using mt_collection.add_tf([list_of_tfs]). Otherwise adding transfer functions one by one will be slow.
26:05:06T23:12:32 | INFO | line:749 |mtpy.core.mt_collection | _from_mt_object | added grid.gv110
26:05:06T23:12:32 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts_per_kilometer_per_nanotesla' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:32 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:32 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:32 | WARNING | line:563 |mtpy.core.mt_collection | add_tf | If you are adding multiple transfer functions, suggest making a list of transfer functions first then adding the list using mt_collection.add_tf([list_of_tfs]). Otherwise adding transfer functions one by one will be slow.
26:05:06T23:12:33 | INFO | line:749 |mtpy.core.mt_collection | _from_mt_object | added grid.gv111
26:05:06T23:12:33 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts_per_kilometer_per_nanotesla' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:33 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:33 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:33 | WARNING | line:563 |mtpy.core.mt_collection | add_tf | If you are adding multiple transfer functions, suggest making a list of transfer functions first then adding the list using mt_collection.add_tf([list_of_tfs]). Otherwise adding transfer functions one by one will be slow.
26:05:06T23:12:33 | INFO | line:749 |mtpy.core.mt_collection | _from_mt_object | added grid.gv112
26:05:06T23:12:33 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts_per_kilometer_per_nanotesla' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:33 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:33 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:33 | WARNING | line:563 |mtpy.core.mt_collection | add_tf | If you are adding multiple transfer functions, suggest making a list of transfer functions first then adding the list using mt_collection.add_tf([list_of_tfs]). Otherwise adding transfer functions one by one will be slow.
26:05:06T23:12:34 | INFO | line:749 |mtpy.core.mt_collection | _from_mt_object | added grid.gv113
26:05:06T23:12:34 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts_per_kilometer_per_nanotesla' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:34 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:34 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:34 | WARNING | line:563 |mtpy.core.mt_collection | add_tf | If you are adding multiple transfer functions, suggest making a list of transfer functions first then adding the list using mt_collection.add_tf([list_of_tfs]). Otherwise adding transfer functions one by one will be slow.
26:05:06T23:12:34 | INFO | line:749 |mtpy.core.mt_collection | _from_mt_object | added grid.gv114
26:05:06T23:12:34 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts_per_kilometer_per_nanotesla' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:34 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:35 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:35 | WARNING | line:563 |mtpy.core.mt_collection | add_tf | If you are adding multiple transfer functions, suggest making a list of transfer functions first then adding the list using mt_collection.add_tf([list_of_tfs]). Otherwise adding transfer functions one by one will be slow.
26:05:06T23:12:35 | INFO | line:749 |mtpy.core.mt_collection | _from_mt_object | added grid.gv115
26:05:06T23:12:35 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts_per_kilometer_per_nanotesla' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:35 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:35 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:35 | WARNING | line:563 |mtpy.core.mt_collection | add_tf | If you are adding multiple transfer functions, suggest making a list of transfer functions first then adding the list using mt_collection.add_tf([list_of_tfs]). Otherwise adding transfer functions one by one will be slow.
26:05:06T23:12:35 | INFO | line:749 |mtpy.core.mt_collection | _from_mt_object | added grid.gv116
26:05:06T23:12:35 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts_per_kilometer_per_nanotesla' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:36 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:36 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:36 | WARNING | line:563 |mtpy.core.mt_collection | add_tf | If you are adding multiple transfer functions, suggest making a list of transfer functions first then adding the list using mt_collection.add_tf([list_of_tfs]). Otherwise adding transfer functions one by one will be slow.
26:05:06T23:12:36 | INFO | line:749 |mtpy.core.mt_collection | _from_mt_object | added grid.gv117
26:05:06T23:12:36 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts_per_kilometer_per_nanotesla' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:36 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:36 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:36 | WARNING | line:563 |mtpy.core.mt_collection | add_tf | If you are adding multiple transfer functions, suggest making a list of transfer functions first then adding the list using mt_collection.add_tf([list_of_tfs]). Otherwise adding transfer functions one by one will be slow.
26:05:06T23:12:36 | INFO | line:749 |mtpy.core.mt_collection | _from_mt_object | added grid.gv118
26:05:06T23:12:37 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts_per_kilometer_per_nanotesla' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:37 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:37 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:37 | WARNING | line:563 |mtpy.core.mt_collection | add_tf | If you are adding multiple transfer functions, suggest making a list of transfer functions first then adding the list using mt_collection.add_tf([list_of_tfs]). Otherwise adding transfer functions one by one will be slow.
26:05:06T23:12:37 | INFO | line:749 |mtpy.core.mt_collection | _from_mt_object | added grid.gv119
26:05:06T23:12:37 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts_per_kilometer_per_nanotesla' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:37 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:37 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:37 | WARNING | line:563 |mtpy.core.mt_collection | add_tf | If you are adding multiple transfer functions, suggest making a list of transfer functions first then adding the list using mt_collection.add_tf([list_of_tfs]). Otherwise adding transfer functions one by one will be slow.
26:05:06T23:12:37 | INFO | line:749 |mtpy.core.mt_collection | _from_mt_object | added grid.gv120
26:05:06T23:12:38 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts_per_kilometer_per_nanotesla' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:38 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:38 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:38 | WARNING | line:563 |mtpy.core.mt_collection | add_tf | If you are adding multiple transfer functions, suggest making a list of transfer functions first then adding the list using mt_collection.add_tf([list_of_tfs]). Otherwise adding transfer functions one by one will be slow.
26:05:06T23:12:38 | INFO | line:749 |mtpy.core.mt_collection | _from_mt_object | added grid.gv121
26:05:06T23:12:38 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts_per_kilometer_per_nanotesla' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:38 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:38 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:38 | WARNING | line:563 |mtpy.core.mt_collection | add_tf | If you are adding multiple transfer functions, suggest making a list of transfer functions first then adding the list using mt_collection.add_tf([list_of_tfs]). Otherwise adding transfer functions one by one will be slow.
26:05:06T23:12:38 | INFO | line:749 |mtpy.core.mt_collection | _from_mt_object | added grid.gv122
26:05:06T23:12:39 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts_per_kilometer_per_nanotesla' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:39 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:39 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:39 | WARNING | line:563 |mtpy.core.mt_collection | add_tf | If you are adding multiple transfer functions, suggest making a list of transfer functions first then adding the list using mt_collection.add_tf([list_of_tfs]). Otherwise adding transfer functions one by one will be slow.
26:05:06T23:12:39 | INFO | line:749 |mtpy.core.mt_collection | _from_mt_object | added grid.gv123
26:05:06T23:12:39 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts_per_kilometer_per_nanotesla' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:39 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:39 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:39 | WARNING | line:563 |mtpy.core.mt_collection | add_tf | If you are adding multiple transfer functions, suggest making a list of transfer functions first then adding the list using mt_collection.add_tf([list_of_tfs]). Otherwise adding transfer functions one by one will be slow.
26:05:06T23:12:39 | INFO | line:749 |mtpy.core.mt_collection | _from_mt_object | added grid.gv124
26:05:06T23:12:40 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts_per_kilometer_per_nanotesla' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:40 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:40 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:40 | WARNING | line:563 |mtpy.core.mt_collection | add_tf | If you are adding multiple transfer functions, suggest making a list of transfer functions first then adding the list using mt_collection.add_tf([list_of_tfs]). Otherwise adding transfer functions one by one will be slow.
26:05:06T23:12:40 | INFO | line:749 |mtpy.core.mt_collection | _from_mt_object | added grid.gv125
26:05:06T23:12:40 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts_per_kilometer_per_nanotesla' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:40 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:40 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:40 | WARNING | line:563 |mtpy.core.mt_collection | add_tf | If you are adding multiple transfer functions, suggest making a list of transfer functions first then adding the list using mt_collection.add_tf([list_of_tfs]). Otherwise adding transfer functions one by one will be slow.
26:05:06T23:12:41 | INFO | line:749 |mtpy.core.mt_collection | _from_mt_object | added grid.gv126
26:05:06T23:12:41 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts_per_kilometer_per_nanotesla' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:41 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:41 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:41 | WARNING | line:563 |mtpy.core.mt_collection | add_tf | If you are adding multiple transfer functions, suggest making a list of transfer functions first then adding the list using mt_collection.add_tf([list_of_tfs]). Otherwise adding transfer functions one by one will be slow.
26:05:06T23:12:41 | INFO | line:749 |mtpy.core.mt_collection | _from_mt_object | added grid.gv127
26:05:06T23:12:42 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts_per_kilometer_per_nanotesla' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:42 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:42 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:42 | WARNING | line:563 |mtpy.core.mt_collection | add_tf | If you are adding multiple transfer functions, suggest making a list of transfer functions first then adding the list using mt_collection.add_tf([list_of_tfs]). Otherwise adding transfer functions one by one will be slow.
26:05:06T23:12:42 | INFO | line:749 |mtpy.core.mt_collection | _from_mt_object | added grid.gv128
26:05:06T23:12:42 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts_per_kilometer_per_nanotesla' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:42 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:42 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:42 | WARNING | line:563 |mtpy.core.mt_collection | add_tf | If you are adding multiple transfer functions, suggest making a list of transfer functions first then adding the list using mt_collection.add_tf([list_of_tfs]). Otherwise adding transfer functions one by one will be slow.
26:05:06T23:12:43 | INFO | line:749 |mtpy.core.mt_collection | _from_mt_object | added grid.gv129
26:05:06T23:12:43 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts_per_kilometer_per_nanotesla' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:43 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:43 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:43 | WARNING | line:563 |mtpy.core.mt_collection | add_tf | If you are adding multiple transfer functions, suggest making a list of transfer functions first then adding the list using mt_collection.add_tf([list_of_tfs]). Otherwise adding transfer functions one by one will be slow.
26:05:06T23:12:43 | INFO | line:749 |mtpy.core.mt_collection | _from_mt_object | added grid.gv130
26:05:06T23:12:43 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts_per_kilometer_per_nanotesla' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:43 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:43 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:43 | WARNING | line:563 |mtpy.core.mt_collection | add_tf | If you are adding multiple transfer functions, suggest making a list of transfer functions first then adding the list using mt_collection.add_tf([list_of_tfs]). Otherwise adding transfer functions one by one will be slow.
26:05:06T23:12:44 | INFO | line:749 |mtpy.core.mt_collection | _from_mt_object | added grid.gv131
26:05:06T23:12:44 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts_per_kilometer_per_nanotesla' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:44 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:44 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:44 | WARNING | line:563 |mtpy.core.mt_collection | add_tf | If you are adding multiple transfer functions, suggest making a list of transfer functions first then adding the list using mt_collection.add_tf([list_of_tfs]). Otherwise adding transfer functions one by one will be slow.
26:05:06T23:12:44 | INFO | line:749 |mtpy.core.mt_collection | _from_mt_object | added grid.gv132
26:05:06T23:12:45 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts_per_kilometer_per_nanotesla' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:45 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:45 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:45 | WARNING | line:563 |mtpy.core.mt_collection | add_tf | If you are adding multiple transfer functions, suggest making a list of transfer functions first then adding the list using mt_collection.add_tf([list_of_tfs]). Otherwise adding transfer functions one by one will be slow.
26:05:06T23:12:45 | INFO | line:749 |mtpy.core.mt_collection | _from_mt_object | added grid.gv133
26:05:06T23:12:45 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts_per_kilometer_per_nanotesla' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:45 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:45 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:45 | WARNING | line:563 |mtpy.core.mt_collection | add_tf | If you are adding multiple transfer functions, suggest making a list of transfer functions first then adding the list using mt_collection.add_tf([list_of_tfs]). Otherwise adding transfer functions one by one will be slow.
26:05:06T23:12:46 | INFO | line:749 |mtpy.core.mt_collection | _from_mt_object | added grid.gv134
26:05:06T23:12:46 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts_per_kilometer_per_nanotesla' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:46 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:46 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:46 | WARNING | line:563 |mtpy.core.mt_collection | add_tf | If you are adding multiple transfer functions, suggest making a list of transfer functions first then adding the list using mt_collection.add_tf([list_of_tfs]). Otherwise adding transfer functions one by one will be slow.
26:05:06T23:12:46 | INFO | line:749 |mtpy.core.mt_collection | _from_mt_object | added grid.gv135
26:05:06T23:12:46 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts_per_kilometer_per_nanotesla' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:46 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:46 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:46 | WARNING | line:563 |mtpy.core.mt_collection | add_tf | If you are adding multiple transfer functions, suggest making a list of transfer functions first then adding the list using mt_collection.add_tf([list_of_tfs]). Otherwise adding transfer functions one by one will be slow.
26:05:06T23:12:47 | INFO | line:749 |mtpy.core.mt_collection | _from_mt_object | added grid.gv136
26:05:06T23:12:47 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts_per_kilometer_per_nanotesla' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:47 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:47 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:47 | WARNING | line:563 |mtpy.core.mt_collection | add_tf | If you are adding multiple transfer functions, suggest making a list of transfer functions first then adding the list using mt_collection.add_tf([list_of_tfs]). Otherwise adding transfer functions one by one will be slow.
26:05:06T23:12:47 | INFO | line:749 |mtpy.core.mt_collection | _from_mt_object | added grid.gv137
26:05:06T23:12:47 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts_per_kilometer_per_nanotesla' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:47 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:48 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:48 | WARNING | line:563 |mtpy.core.mt_collection | add_tf | If you are adding multiple transfer functions, suggest making a list of transfer functions first then adding the list using mt_collection.add_tf([list_of_tfs]). Otherwise adding transfer functions one by one will be slow.
26:05:06T23:12:48 | INFO | line:749 |mtpy.core.mt_collection | _from_mt_object | added grid.gv138
26:05:06T23:12:48 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts_per_kilometer_per_nanotesla' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:48 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:48 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:48 | WARNING | line:563 |mtpy.core.mt_collection | add_tf | If you are adding multiple transfer functions, suggest making a list of transfer functions first then adding the list using mt_collection.add_tf([list_of_tfs]). Otherwise adding transfer functions one by one will be slow.
26:05:06T23:12:48 | INFO | line:749 |mtpy.core.mt_collection | _from_mt_object | added grid.gv139
26:05:06T23:12:49 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts_per_kilometer_per_nanotesla' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:49 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:49 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:49 | WARNING | line:563 |mtpy.core.mt_collection | add_tf | If you are adding multiple transfer functions, suggest making a list of transfer functions first then adding the list using mt_collection.add_tf([list_of_tfs]). Otherwise adding transfer functions one by one will be slow.
26:05:06T23:12:49 | INFO | line:749 |mtpy.core.mt_collection | _from_mt_object | added grid.gv140
26:05:06T23:12:49 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts_per_kilometer_per_nanotesla' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:49 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:49 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:49 | WARNING | line:563 |mtpy.core.mt_collection | add_tf | If you are adding multiple transfer functions, suggest making a list of transfer functions first then adding the list using mt_collection.add_tf([list_of_tfs]). Otherwise adding transfer functions one by one will be slow.
26:05:06T23:12:49 | INFO | line:749 |mtpy.core.mt_collection | _from_mt_object | added grid.gv141
26:05:06T23:12:50 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts_per_kilometer_per_nanotesla' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:50 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:50 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:50 | WARNING | line:563 |mtpy.core.mt_collection | add_tf | If you are adding multiple transfer functions, suggest making a list of transfer functions first then adding the list using mt_collection.add_tf([list_of_tfs]). Otherwise adding transfer functions one by one will be slow.
26:05:06T23:12:50 | INFO | line:749 |mtpy.core.mt_collection | _from_mt_object | added grid.gv142
26:05:06T23:12:50 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts_per_kilometer_per_nanotesla' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:50 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:50 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:50 | WARNING | line:563 |mtpy.core.mt_collection | add_tf | If you are adding multiple transfer functions, suggest making a list of transfer functions first then adding the list using mt_collection.add_tf([list_of_tfs]). Otherwise adding transfer functions one by one will be slow.
26:05:06T23:12:51 | INFO | line:749 |mtpy.core.mt_collection | _from_mt_object | added grid.gv143
26:05:06T23:12:51 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts_per_kilometer_per_nanotesla' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:51 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:51 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:51 | WARNING | line:563 |mtpy.core.mt_collection | add_tf | If you are adding multiple transfer functions, suggest making a list of transfer functions first then adding the list using mt_collection.add_tf([list_of_tfs]). Otherwise adding transfer functions one by one will be slow.
26:05:06T23:12:51 | INFO | line:749 |mtpy.core.mt_collection | _from_mt_object | added grid.gv144
26:05:06T23:12:52 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts_per_kilometer_per_nanotesla' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:52 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:52 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:52 | WARNING | line:563 |mtpy.core.mt_collection | add_tf | If you are adding multiple transfer functions, suggest making a list of transfer functions first then adding the list using mt_collection.add_tf([list_of_tfs]). Otherwise adding transfer functions one by one will be slow.
26:05:06T23:12:53 | INFO | line:749 |mtpy.core.mt_collection | _from_mt_object | added grid.gv145
26:05:06T23:12:53 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts_per_kilometer_per_nanotesla' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:53 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:53 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:53 | WARNING | line:563 |mtpy.core.mt_collection | add_tf | If you are adding multiple transfer functions, suggest making a list of transfer functions first then adding the list using mt_collection.add_tf([list_of_tfs]). Otherwise adding transfer functions one by one will be slow.
26:05:06T23:12:53 | INFO | line:749 |mtpy.core.mt_collection | _from_mt_object | added grid.gv146
26:05:06T23:12:54 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts_per_kilometer_per_nanotesla' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:54 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:54 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:54 | WARNING | line:563 |mtpy.core.mt_collection | add_tf | If you are adding multiple transfer functions, suggest making a list of transfer functions first then adding the list using mt_collection.add_tf([list_of_tfs]). Otherwise adding transfer functions one by one will be slow.
26:05:06T23:12:54 | INFO | line:749 |mtpy.core.mt_collection | _from_mt_object | added grid.gv147
26:05:06T23:12:54 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts_per_kilometer_per_nanotesla' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:54 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:54 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:54 | WARNING | line:563 |mtpy.core.mt_collection | add_tf | If you are adding multiple transfer functions, suggest making a list of transfer functions first then adding the list using mt_collection.add_tf([list_of_tfs]). Otherwise adding transfer functions one by one will be slow.
26:05:06T23:12:55 | INFO | line:749 |mtpy.core.mt_collection | _from_mt_object | added grid.gv148
26:05:06T23:12:55 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts_per_kilometer_per_nanotesla' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:55 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:55 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:55 | WARNING | line:563 |mtpy.core.mt_collection | add_tf | If you are adding multiple transfer functions, suggest making a list of transfer functions first then adding the list using mt_collection.add_tf([list_of_tfs]). Otherwise adding transfer functions one by one will be slow.
26:05:06T23:12:55 | INFO | line:749 |mtpy.core.mt_collection | _from_mt_object | added grid.gv149
26:05:06T23:12:56 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts_per_kilometer_per_nanotesla' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:56 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:56 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:56 | WARNING | line:563 |mtpy.core.mt_collection | add_tf | If you are adding multiple transfer functions, suggest making a list of transfer functions first then adding the list using mt_collection.add_tf([list_of_tfs]). Otherwise adding transfer functions one by one will be slow.
26:05:06T23:12:56 | INFO | line:749 |mtpy.core.mt_collection | _from_mt_object | added grid.gv150
26:05:06T23:12:56 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts_per_kilometer_per_nanotesla' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:56 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:56 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:56 | WARNING | line:563 |mtpy.core.mt_collection | add_tf | If you are adding multiple transfer functions, suggest making a list of transfer functions first then adding the list using mt_collection.add_tf([list_of_tfs]). Otherwise adding transfer functions one by one will be slow.
26:05:06T23:12:57 | INFO | line:749 |mtpy.core.mt_collection | _from_mt_object | added grid.gv151
26:05:06T23:12:57 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts_per_kilometer_per_nanotesla' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:57 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:57 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:57 | WARNING | line:563 |mtpy.core.mt_collection | add_tf | If you are adding multiple transfer functions, suggest making a list of transfer functions first then adding the list using mt_collection.add_tf([list_of_tfs]). Otherwise adding transfer functions one by one will be slow.
26:05:06T23:12:57 | INFO | line:749 |mtpy.core.mt_collection | _from_mt_object | added grid.gv152
26:05:06T23:12:58 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts_per_kilometer_per_nanotesla' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:58 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:58 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:58 | WARNING | line:563 |mtpy.core.mt_collection | add_tf | If you are adding multiple transfer functions, suggest making a list of transfer functions first then adding the list using mt_collection.add_tf([list_of_tfs]). Otherwise adding transfer functions one by one will be slow.
26:05:06T23:12:58 | INFO | line:749 |mtpy.core.mt_collection | _from_mt_object | added grid.gv153
26:05:06T23:12:58 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts_per_kilometer_per_nanotesla' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:58 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:58 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:58 | WARNING | line:563 |mtpy.core.mt_collection | add_tf | If you are adding multiple transfer functions, suggest making a list of transfer functions first then adding the list using mt_collection.add_tf([list_of_tfs]). Otherwise adding transfer functions one by one will be slow.
26:05:06T23:12:59 | INFO | line:749 |mtpy.core.mt_collection | _from_mt_object | added grid.gv154
26:05:06T23:12:59 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts_per_kilometer_per_nanotesla' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:59 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:59 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:12:59 | WARNING | line:563 |mtpy.core.mt_collection | add_tf | If you are adding multiple transfer functions, suggest making a list of transfer functions first then adding the list using mt_collection.add_tf([list_of_tfs]). Otherwise adding transfer functions one by one will be slow.
26:05:06T23:12:59 | INFO | line:749 |mtpy.core.mt_collection | _from_mt_object | added grid.gv155
26:05:06T23:13:00 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts_per_kilometer_per_nanotesla' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:13:00 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:13:00 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:13:00 | WARNING | line:563 |mtpy.core.mt_collection | add_tf | If you are adding multiple transfer functions, suggest making a list of transfer functions first then adding the list using mt_collection.add_tf([list_of_tfs]). Otherwise adding transfer functions one by one will be slow.
26:05:06T23:13:00 | INFO | line:749 |mtpy.core.mt_collection | _from_mt_object | added grid.gv160
26:05:06T23:13:00 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts_per_kilometer_per_nanotesla' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:13:00 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:13:00 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:13:00 | WARNING | line:563 |mtpy.core.mt_collection | add_tf | If you are adding multiple transfer functions, suggest making a list of transfer functions first then adding the list using mt_collection.add_tf([list_of_tfs]). Otherwise adding transfer functions one by one will be slow.
26:05:06T23:13:01 | INFO | line:749 |mtpy.core.mt_collection | _from_mt_object | added grid.gv161
26:05:06T23:13:01 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts_per_kilometer_per_nanotesla' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:13:01 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:13:01 | WARNING | line:432 |mt_metadata.common.units | get_unit_from_df | Unit 'millivolts' not found in accepted units, setting to 'unknown'. If this is an error raise an issue to add a unit. If an error needs to be raised, set allow_none=False.
26:05:06T23:13:01 | WARNING | line:563 |mtpy.core.mt_collection | add_tf | If you are adding multiple transfer functions, suggest making a list of transfer functions first then adding the list using mt_collection.add_tf([list_of_tfs]). Otherwise adding transfer functions one by one will be slow.
26:05:06T23:13:01 | INFO | line:749 |mtpy.core.mt_collection | _from_mt_object | added grid.gv163
CPU times: total: 30.9 s
Wall time: 35 s

3. Working and Master Dataframes

MTCollection includes a summary table of the transfer functions that it contains in the form of a pandas.DataFrame, this is the MTCollection.master_dataframe. There is also a MTCollection.working_dataframe which is a subset of the master_dataframe that the user can specify. This allows the MTCollection to be a catch-all for all your transfer functions and then when you only want to work with a small subset from a certain survey or geographic area you can query the master_dataframe to set the working_dataframe.

3a. Profile Working Dataframe

Here we will choose to work only with data that has a survey.id = 'profile'.

mtc.working_dataframe = mtc.master_dataframe.loc[mtc.master_dataframe.survey == "profile"]

mtc.working_dataframe

	station	survey	latitude	longitude	elevation	tf_id	units	has_impedance	has_tipper	has_covariance	period_min	period_max	hdf5_reference	station_hdf5_reference
59	15125A	profile	-22.370806	149.188639	200.0	15125A	milliVolt per kilometer per nanoTesla	True	True	False	0.000096	2.857143	<HDF5 object reference>	<HDF5 object reference>
60	15126A	profile	-22.370639	149.193500	200.0	15126A	milliVolt per kilometer per nanoTesla	True	True	False	0.000096	2.857143	<HDF5 object reference>	<HDF5 object reference>
61	15127A	profile	-22.371028	149.198417	201.0	15127A	milliVolt per kilometer per nanoTesla	True	True	False	0.000096	2.857143	<HDF5 object reference>	<HDF5 object reference>
62	15128A	profile	-22.370861	149.203306	200.0	15128A	milliVolt per kilometer per nanoTesla	True	True	False	0.000096	2.857143	<HDF5 object reference>	<HDF5 object reference>
63	15129A	profile	-22.371083	149.208083	202.0	15129A	milliVolt per kilometer per nanoTesla	True	True	False	0.000096	2.857143	<HDF5 object reference>	<HDF5 object reference>
64	15130A	profile	-22.371222	149.212972	201.0	15130A	milliVolt per kilometer per nanoTesla	True	True	False	0.000096	2.857143	<HDF5 object reference>	<HDF5 object reference>
65	16122A	profile	-22.325611	149.174361	210.0	16122A	milliVolt per kilometer per nanoTesla	True	True	False	0.000096	2.857143	<HDF5 object reference>	<HDF5 object reference>
66	16123A	profile	-22.325556	149.179056	213.0	16123A	milliVolt per kilometer per nanoTesla	True	True	False	0.000096	2.857143	<HDF5 object reference>	<HDF5 object reference>
67	16124A	profile	-22.325694	149.184472	212.0	16124A	milliVolt per kilometer per nanoTesla	True	True	False	0.000096	2.857143	<HDF5 object reference>	<HDF5 object reference>
68	16125A	profile	-22.325750	149.189306	219.0	16125A	milliVolt per kilometer per nanoTesla	True	True	False	0.000096	2.857143	<HDF5 object reference>	<HDF5 object reference>
69	16126A	profile	-22.325806	149.194000	214.0	16126A	milliVolt per kilometer per nanoTesla	True	True	False	0.000096	2.857143	<HDF5 object reference>	<HDF5 object reference>
70	16127A	profile	-22.325889	149.198861	220.0	16127A	milliVolt per kilometer per nanoTesla	True	True	False	0.000096	2.857143	<HDF5 object reference>	<HDF5 object reference>

Plot station locations

Now that we have queried for only those stations in the ‘profile’ survey lets plot the station locations just for a sanity check. Looks like the 1600 line and 1500 line are different, so let’s pick just the 1500 line.

Warning: Southern hemisphere locations have issues with contextily and not sure why. Below is an example on how to change the provider. See contextily providers for more details.

stations_plot = mtc.plot_stations(pad=.0001)

26:05:06T23:13:04 | WARNING | line:186 |mtpy.imaging.plot_stations | plot | Could not add base map because Tile URL resulted in a 404 error. Double-check your tile url:
https://basemap.nationalmap.gov/arcgis/rest/services/USGSTopo/MapServer/tile/14/9234/14981

Extract only the 15 line

mtc.working_dataframe = mtc.working_dataframe.query('station.str.startswith("15")')

mtc.working_dataframe

	station	survey	latitude	longitude	elevation	tf_id	units	has_impedance	has_tipper	has_covariance	period_min	period_max	hdf5_reference	station_hdf5_reference
59	15125A	profile	-22.370806	149.188639	200.0	15125A	milliVolt per kilometer per nanoTesla	True	True	False	0.000096	2.857143	<HDF5 object reference>	<HDF5 object reference>
60	15126A	profile	-22.370639	149.193500	200.0	15126A	milliVolt per kilometer per nanoTesla	True	True	False	0.000096	2.857143	<HDF5 object reference>	<HDF5 object reference>
61	15127A	profile	-22.371028	149.198417	201.0	15127A	milliVolt per kilometer per nanoTesla	True	True	False	0.000096	2.857143	<HDF5 object reference>	<HDF5 object reference>
62	15128A	profile	-22.370861	149.203306	200.0	15128A	milliVolt per kilometer per nanoTesla	True	True	False	0.000096	2.857143	<HDF5 object reference>	<HDF5 object reference>
63	15129A	profile	-22.371083	149.208083	202.0	15129A	milliVolt per kilometer per nanoTesla	True	True	False	0.000096	2.857143	<HDF5 object reference>	<HDF5 object reference>
64	15130A	profile	-22.371222	149.212972	201.0	15130A	milliVolt per kilometer per nanoTesla	True	True	False	0.000096	2.857143	<HDF5 object reference>	<HDF5 object reference>

station_plot = mtc.plot_stations(pad=.0001)

26:05:06T23:13:05 | WARNING | line:186 |mtpy.imaging.plot_stations | plot | Could not add base map because Tile URL resulted in a 404 error. Double-check your tile url:
https://basemap.nationalmap.gov/arcgis/rest/services/USGSTopo/MapServer/tile/15/18474/29963

3b. Grid Working DataFrame

Now lets get only the stations in the ‘grid’ survey and plot them.

mtc.working_dataframe = mtc.master_dataframe.loc[mtc.master_dataframe.survey == "grid"]

mtc.working_dataframe

	station	survey	latitude	longitude	elevation	tf_id	units	has_impedance	has_tipper	has_covariance	period_min	period_max	hdf5_reference	station_hdf5_reference
0	gv100	grid	38.611381	-118.535261	1437.400	gv100	unknown	True	True	False	0.001302	2048.000210	<HDF5 object reference>	<HDF5 object reference>
1	gv101	grid	38.594561	-118.351111	1540.550	gv101	unknown	True	True	False	0.001302	2048.000210	<HDF5 object reference>	<HDF5 object reference>
2	gv102	grid	38.593692	-118.276822	1554.800	gv102	unknown	True	True	False	0.001302	2048.000210	<HDF5 object reference>	<HDF5 object reference>
3	gv103	grid	38.585283	-118.202481	1543.900	gv103	unknown	True	True	False	0.001302	1365.000061	<HDF5 object reference>	<HDF5 object reference>
4	gv104	grid	38.596456	-118.136547	1801.800	gv104	unknown	True	True	False	0.001302	1365.000061	<HDF5 object reference>	<HDF5 object reference>
5	gv105	grid	38.594131	-118.071933	1901.600	gv105	unknown	True	True	False	0.001302	1365.000061	<HDF5 object reference>	<HDF5 object reference>
6	gv106	grid	38.598842	-117.940803	1653.269	gv106	unknown	True	True	False	0.001302	2048.000210	<HDF5 object reference>	<HDF5 object reference>
7	gv107	grid	38.612339	-117.882392	1753.700	gv107	unknown	True	True	False	0.001302	2048.000210	<HDF5 object reference>	<HDF5 object reference>
8	gv108	grid	38.691575	-118.501819	1904.900	gv108	unknown	True	True	False	0.001302	2048.000210	<HDF5 object reference>	<HDF5 object reference>
9	gv109	grid	38.721022	-118.421311	1769.400	gv109	unknown	True	True	False	0.001302	2048.000210	<HDF5 object reference>	<HDF5 object reference>
10	gv110	grid	38.672894	-118.330589	1857.100	gv110	unknown	True	True	False	0.001302	2048.000210	<HDF5 object reference>	<HDF5 object reference>
11	gv111	grid	38.683950	-118.272311	1893.411	gv111	unknown	True	True	False	0.001302	2048.000210	<HDF5 object reference>	<HDF5 object reference>
12	gv112	grid	38.693392	-118.092872	1572.200	gv112	unknown	True	True	False	0.001302	2048.000210	<HDF5 object reference>	<HDF5 object reference>
13	gv113	grid	38.660622	-117.991272	1531.200	gv113	unknown	True	True	False	0.001302	2048.000210	<HDF5 object reference>	<HDF5 object reference>
14	gv114	grid	38.695694	-117.965139	1542.400	gv114	unknown	True	True	False	0.001302	2048.000210	<HDF5 object reference>	<HDF5 object reference>
15	gv115	grid	38.694236	-117.872453	1625.700	gv115	unknown	True	True	False	0.001302	2048.000210	<HDF5 object reference>	<HDF5 object reference>
16	gv116	grid	38.772536	-118.499314	1642.800	gv116	unknown	True	True	False	0.001302	2048.000210	<HDF5 object reference>	<HDF5 object reference>
17	gv117	grid	38.827428	-118.423014	1505.000	gv117	unknown	True	True	False	0.001302	2048.000210	<HDF5 object reference>	<HDF5 object reference>
18	gv118	grid	38.780817	-118.352297	1445.286	gv118	unknown	True	True	False	0.001302	2048.000210	<HDF5 object reference>	<HDF5 object reference>
19	gv119	grid	38.793572	-118.284242	1394.190	gv119	unknown	True	True	False	0.001302	2048.000210	<HDF5 object reference>	<HDF5 object reference>
20	gv120	grid	38.834919	-118.099611	1304.800	gv120	unknown	True	True	False	0.001302	2048.000210	<HDF5 object reference>	<HDF5 object reference>
21	gv121	grid	38.781614	-118.050139	1394.700	gv121	unknown	True	True	False	0.001302	2048.000210	<HDF5 object reference>	<HDF5 object reference>
22	gv122	grid	38.779211	-117.957842	1535.500	gv122	unknown	True	True	False	0.001302	2048.000210	<HDF5 object reference>	<HDF5 object reference>
23	gv123	grid	38.758194	-117.850214	1855.454	gv123	unknown	True	True	False	0.001302	2048.000210	<HDF5 object reference>	<HDF5 object reference>
24	gv124	grid	38.894753	-118.455667	1368.218	gv124	unknown	True	True	False	0.001302	2048.000210	<HDF5 object reference>	<HDF5 object reference>
25	gv125	grid	38.897069	-118.379408	1234.500	gv125	unknown	True	True	False	0.001302	2048.000210	<HDF5 object reference>	<HDF5 object reference>
26	gv126	grid	38.891994	-118.278522	1234.000	gv126	unknown	True	True	False	0.001302	2048.000210	<HDF5 object reference>	<HDF5 object reference>
27	gv127	grid	38.870372	-118.232033	1251.100	gv127	unknown	True	True	False	0.001302	1115.940903	<HDF5 object reference>	<HDF5 object reference>
28	gv128	grid	38.887003	-118.080164	1473.400	gv128	unknown	True	True	False	0.001302	2048.000210	<HDF5 object reference>	<HDF5 object reference>
29	gv129	grid	38.832450	-118.020161	1357.029	gv129	unknown	True	True	False	0.001302	2048.000210	<HDF5 object reference>	<HDF5 object reference>
30	gv130	grid	38.870592	-117.958572	1355.761	gv130	unknown	True	True	False	0.001302	2048.000210	<HDF5 object reference>	<HDF5 object reference>
31	gv131	grid	38.899672	-117.858122	1596.800	gv131	unknown	True	True	False	0.001302	2048.000210	<HDF5 object reference>	<HDF5 object reference>
32	gv132	grid	38.899553	-118.006981	1381.500	gv132	unknown	True	True	False	0.001302	2048.000210	<HDF5 object reference>	<HDF5 object reference>
33	gv133	grid	38.948494	-118.363769	1281.300	gv133	unknown	True	True	False	0.001302	2048.000210	<HDF5 object reference>	<HDF5 object reference>
34	gv134	grid	38.964211	-118.309064	1262.900	gv134	unknown	True	True	False	0.001302	2048.000210	<HDF5 object reference>	<HDF5 object reference>
35	gv135	grid	38.959308	-118.229806	1236.400	gv135	unknown	True	True	False	0.001302	2048.000210	<HDF5 object reference>	<HDF5 object reference>
36	gv136	grid	38.931881	-118.143908	1335.800	gv136	unknown	True	True	False	0.001302	2048.000210	<HDF5 object reference>	<HDF5 object reference>
37	gv137	grid	38.938647	-118.040322	1542.100	gv137	unknown	True	True	False	0.001302	2048.000210	<HDF5 object reference>	<HDF5 object reference>
38	gv138	grid	38.958664	-117.962525	1431.400	gv138	unknown	True	True	False	0.001302	2048.000210	<HDF5 object reference>	<HDF5 object reference>
39	gv139	grid	38.958169	-117.868064	1415.700	gv139	unknown	True	True	False	0.001302	2048.000210	<HDF5 object reference>	<HDF5 object reference>
40	gv140	grid	39.065478	-118.467969	1460.400	gv140	unknown	True	True	False	0.001302	2048.000210	<HDF5 object reference>	<HDF5 object reference>
41	gv141	grid	39.049328	-118.395528	1620.500	gv141	unknown	True	True	False	0.001302	2048.000210	<HDF5 object reference>	<HDF5 object reference>
42	gv142	grid	39.044442	-118.308225	1738.900	gv142	unknown	True	True	False	0.001764	2048.000210	<HDF5 object reference>	<HDF5 object reference>
43	gv143	grid	39.053244	-118.252172	1627.200	gv143	unknown	True	True	False	0.001302	2048.000210	<HDF5 object reference>	<HDF5 object reference>
44	gv144	grid	39.013067	-118.162347	1548.029	gv144	unknown	True	True	False	0.001302	1115.940903	<HDF5 object reference>	<HDF5 object reference>
45	gv145	grid	39.052336	-118.042419	1568.999	gv145	unknown	True	True	False	0.001302	2048.000210	<HDF5 object reference>	<HDF5 object reference>
46	gv146	grid	39.045111	-117.961328	1596.200	gv146	unknown	True	True	False	0.001302	2048.000210	<HDF5 object reference>	<HDF5 object reference>
47	gv147	grid	39.045894	-117.872028	1587.100	gv147	unknown	True	True	False	0.001302	2048.000210	<HDF5 object reference>	<HDF5 object reference>
48	gv148	grid	39.158608	-118.506814	1591.820	gv148	unknown	True	True	False	0.001302	2048.000210	<HDF5 object reference>	<HDF5 object reference>
49	gv149	grid	39.128144	-118.421497	1667.600	gv149	unknown	True	True	False	0.001302	2048.000210	<HDF5 object reference>	<HDF5 object reference>
50	gv150	grid	39.141736	-118.320472	1490.559	gv150	unknown	True	True	False	0.001302	2048.000210	<HDF5 object reference>	<HDF5 object reference>
51	gv151	grid	39.111331	-118.265897	1449.100	gv151	unknown	True	True	False	0.001302	2048.000210	<HDF5 object reference>	<HDF5 object reference>
52	gv152	grid	39.141939	-118.155467	1660.881	gv152	unknown	True	True	False	0.001302	2048.000210	<HDF5 object reference>	<HDF5 object reference>
53	gv153	grid	39.142878	-118.045928	1715.500	gv153	unknown	True	True	False	0.001302	2048.000210	<HDF5 object reference>	<HDF5 object reference>
54	gv154	grid	39.149414	-117.972769	1743.100	gv154	unknown	True	True	False	0.001302	2048.000210	<HDF5 object reference>	<HDF5 object reference>
55	gv155	grid	39.138342	-117.872131	1811.100	gv155	unknown	True	True	False	0.001302	2048.000210	<HDF5 object reference>	<HDF5 object reference>
56	gv160	grid	38.914786	-118.190761	1246.000	gv160	unknown	True	True	False	0.001302	2048.000210	<HDF5 object reference>	<HDF5 object reference>
57	gv161	grid	38.993356	-117.997683	1474.727	gv161	unknown	True	True	False	0.001302	1021.063207	<HDF5 object reference>	<HDF5 object reference>
58	gv163	grid	38.834078	-118.236278	1262.700	gv163	unknown	True	True	False	0.001302	2048.000210	<HDF5 object reference>	<HDF5 object reference>

station_plot = mtc.plot_stations(pad=.0005)

Change Basemap

contextily has good options for basemaps, you can check out all the options at https://contextily.readthedocs.io/en/latest/providers_deepdive.html.

Below is an exmaple of how to change the source basemap to the National Geographic World Map.

import contextily as cx

station_plot.cx_source = cx.providers.Esri.NatGeoWorldMap
station_plot.redraw_plot()

4. MTCollection vs MTData

MTCollection is the persistent storage interface (backed by MTH5), while MTData is the in-memory object used for fast manipulation and analysis.

A useful update is that open_collection(...) now initializes an MTData object directly on the collection as mc.mt_data, so you can immediately work in-memory after opening the file.

MTData now exposes a DataTree accessor at tree.mt for structural station operations (path lookup, get/set station datasets, station-wise transforms, and selection). This keeps station-level workflows explicit and fast in RAM.

from mtpy import MT, MTData, MTCollection

# Build MTData directly from TF files (no MTH5 required)
md = MTData()
for filename in list_of_tf_files:
    mt_object = MT()
    mt_object.read(filename)
    md.add_station(mt_object)

# DataTree accessor utilities on MTData
station_paths = md.tree.mt.station_paths
station_ds = md.tree.mt.get_station_dataset(station_paths[0])

# Apply a station-wise transform (returns a new tree by default)
rotated_tree = md.tree.mt.map_stations(lambda ds: ds.tf.rotate(10))

# Persist to MTH5
with MTCollection() as mc:
    mc.open_collection("/path/to/mth5_file.h5")

    # Convenience: immediately available MTData view
    current_md = mc.mt_data

    # Collection-level convenience for station-wise transforms
    mc.map_stations(lambda ds: ds.tf.rotate(10), write_back=False)

    # Write edited MTData back to collection
    mc.from_mt_data(md)

5. Close MTCollection

Important: You need to close the MTCollection otherwise the file may get corrupted and you’ll have to make the file all over again. Note that once the file is closed the transfer functions are no longer available. Therefore it is wise to convert to an MTData object.

mtc.close_collection()

26:05:06T23:13:22 | INFO | line:1035 |mth5.mth5 | close_mth5 | Flushing and closing c:\Users\peaco\OneDrive\Documents\GitHub\mtpy-v2\docs\source\notebooks\test_mt_collection.h5

5a. Context Manager

If you just want to build an MTH5 file and then close it the best way to do that is using the context manager:

with MTCollection() as mc:
    mc.open_collection("/path/to/mth5_file.h5")
    # add data to the files