Note legendre_schmidt_all is in /GGF/ add the folders to Matlab path

Matmagglobal is a Matlab program package to calculate paleomagnetic field model

This program is translated from pymagglobal, nothing new is added, but rewrite it in native Matlab code.

Following model is included:

gufm1 arhimag1k pfm9k.1a HFM.OL1.A1 CALS10k.2 ARCH10k.1 LSMOD.2 GGF100k

Matmagglobal is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation.

Matmagglobal is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;

The accuracy validation is made by Jiawei Gao, E-mail [email protected]

Matmagglobal can be easily set up. Uncompress the Matlab code and add all the folders to Matlab path. Then, try (ggf)_try for more details.

Coordinate, unit, and timing range are provided in annotation

bpcsph = 【Br Bt Bp】 ,which is B_r (radial), B_θ (southward), and B_φ (eastward). The radius of Earth is set to 6371.2 km.

This program is a transition from pymagglobal, nothing now is added.

https://git.gfz-potsdam.de/sec23/korte/pymagglobal

Schanner, Maximilian Arthus; Mauerberger, Stefan; Korte, Monika (2020): pymagglobal - Python interface for global geomagnetic field models. V. 0.1.0. GFZ Data Services. https://doi.org/10.5880/GFZ.2.3.2020.005

pymagglobal is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. pymagglobal is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program. If not, see https://www.gnu.org/licenses/.

Data files are licensed under CC-BY 4.0.

Jack00 Jackson, A., A. R. T. Jonkers and M. R. Walker (2000): Four centuries of geomagnetic secular variation from historical records. Phil. Trans. R. Soc. Lond. A 358, 957–990

Senf20 Senftleben, R. (2020): Earth’s magnetic field over the last 1000 years. PhD thesis, University of Potsdam

Nils14 Nilsson, A., R. Holme, M. Korte, N. Suttie and M. Hill (2014): Reconstructing Holocene geomagnetic field variation: new methods, models and implications. Geophys. J. Int., 198, 229-248

Pano15 Panovska, S., M. Korte, C. Finlay and C. Constable (2015): Limitations in paleomagnetic data and modelling techniques and their impact on Holocene geomagnetic field models. Geophys. J. Int., 202, 402-418.

Cons16(1,2) Constable, C., M. Korte and S. Panovska (2016): Persistent high paleosecular variation activity in Southern hemisphere for at least 10 000 years. Earth Planet. Sci. Lett.,453,78-86.

Kort19 Korte, M., M. C. Brown, S. Panovska and I. Wardinski (2019): Robust characteristics of the Laschamp and Mono Lake geomagnetic excursions: results from global field models. Frontiers in Earth Sciences, 7:86, doi:10.3389/feart.2019.00086

Pano18 Panovska, S., C. G. Constable and M. Korte (2018): Extending global continuous geomagnetic field reconstructions on timescales beyond human civilization. Geochem. Geophys. Geosys., 19, 4757-4772. doi:10.1029/2018GC007966