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Determining the magnetic field in the earth's deep mantle by an inverse boundary value problem

Authors

Ballani,  Ludwig
Scientific Technical Report STR, Deutsches GeoForschungsZentrum;
1.2 Global Geomonitoring and Gravity Field, 1.0 Geodesy and Remote Sensing, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;
Gravity Field and Gravimetry -2009, Geoengineering Centres, GFZ Publication Database, Deutsches GeoForschungsZentrum;

Grainer-Mai,  Hans
Scientific Technical Report STR, Deutsches GeoForschungsZentrum;
1.2 Global Geomonitoring and Gravity Field, 1.0 Geodesy and Remote Sensing, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;
Gravity Field and Gravimetry -2009, Geoengineering Centres, GFZ Publication Database, Deutsches GeoForschungsZentrum;

/persons/resource/stro

Stromeyer,  Dietrich
2.6 Seismic Hazard and Stress Field , 2.0 Physics of the Earth, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;
Scientific Technical Report STR, Deutsches GeoForschungsZentrum;

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Fulltext (public)

9912.pdf
(Publisher version), 11MB

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Citation

Ballani, L., Grainer-Mai, H., Stromeyer, D. (1999): Determining the magnetic field in the earth's deep mantle by an inverse boundary value problem, (Scientific Technical Report ; 99/12), Potsdam : Deutsches GeoForschungsZentrum GFZ, 47 p.
https://doi.org/10.2312/GFZ.b103-99127


Cite as: https://gfzpublic.gfz-potsdam.de/pubman/item/item_65256
Abstract
[...] We develop a regularizing solution procedure accounting for recent theoretical stability estimates. The capabilities of the procedure are shown for a single magnetic field component of the spherical harmonic field expansion beginning from the year 1900 by varying the mantle conductivity model and the degree of smoothness in the regularization. As an example, the radial component of a global (5,5) core-mantle boundary field is calculated for two epochs.