Supplementary Material (Models and Data) for "Co-estimation of core and lithospheric magnetic fields by a maximum entropy method" by Otzen, Finlay and Kloss (2024)

Data and model parameter files supplement the paper:

Title: "Co-estimation of core and lithospheric magnetic fields by a maximum entropy method"

Authors: Otzen, M. and Finlay, C. C. and Kloss, C.

DOI: 10.1093/gji/ggae008

Files Description

The following files are available:

1. Model_CL.mat

2. CL_datafile.h5

(1) Model_CL.mat:

Model parameter file of the model CL in mat-format, following the

style of the CHAOS model releases. This can be loaded, for example, using the chaosmagpy python package https://pypi.org/project/chaosmagpy/

(2) CL_datafile.h5:

The file stores the processed magnetic data used to estimate the model CL.

Data is organized in HDF-groups "ground", "scalar", "scalar_gradient",

"vector", and "vector_gradient", which contains several HDF-datasets

(e.g. Time, Colatitude, magnetic field B). Each HDF-dataset comes with the

attributes "UNITS", "DESCRIPTION" and "FORMAT", which provide additional

information on the HDF-dataset. In can be read, for example using the h5py python package https://pypi.org/project/h5py/.

References to the original databases:

(i) Swarm and CryoSat2 data are available through ESA

at https://swarm-diss.eo.esa.int/#.

(ii) CHAMP data are available from GFZ Data Services

at https://www.doi.org/10.5880/GFZ.2.3.2019.004.

(iii) Ground magnetic observatory data from INTERMAGNET are available

via the virtual research platform VirES https://vires.services/.

(iv) RC index is available at http://www.spacecenter.dk/files/magnetic-models/RC/.

(v) Solar wind speed, interplanetary magnetic field and Kp index are

available through the GSFC/SPDF OMNIWeb interface

at https://omniweb.gsfc.nasa.gov/ow.html.

(vi) CHAOS-7 model and its updates are available

at http://www.spacecenter.dk/files/magnetic-models/CHAOS-7/.