Correlation-based modeling and separation of geomagnetic field components

被引：19

作者：

Holschneider, Matthias ^{[1
]}

Lesur, Vincent ^{[2
]}

Mauerberger, Stefan ^{[1
]}

Baerenzung, Julien ^{[1
]}

机构：

[1] Univ Potsdam, Inst Math, Potsdam, Germany

[2] Inst Phys Globe Paris, Paris, France

来源：

JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH | 2016年 / 121卷 / 05期

关键词：

OBSERVATORY DATA; MAGNETIC-FIELD; HARMONIC SPLINES; SATELLITE DATA; SAC-C; CONSTRAINTS; SURFACE; CHAMP; FLUX;

D O I：

10.1002/2015JB012629

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

We introduce a technique for the modeling and separation of geomagnetic field components that is based on an analysis of their correlation structures alone. The inversion is based on a Bayesian formulation, which allows the computation of uncertainties. The technique allows the incorporation of complex measurement geometries like observatory data in a simple way. We show how our technique is linked to other well-known inversion techniques. A case study based on observational data is given.

引用

收藏

页码：3142 / 3160

页数：19

相关论文

共 30 条

[1] Earth's core internal dynamics 1840-2010 imaged by inverse geodynamo modelling [J].

Aubert, Julien .

GEOPHYSICAL JOURNAL INTERNATIONAL, 2014, 197 (03) :1321-1334

[2] Geomagnetic secular acceleration, jerks, and a localized standing wave at the core surface from 2000 to 2010 [J].

Chulliat, A. ;

Maus, S. .

JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH, 2014, 119 (03) :1531-1543

[3] GEOMAGNETIC-FIELD MODELS INCORPORATING FROZEN-FLUX CONSTRAINTS [J].

CONSTABLE, CG ;

PARKER, RL ;

STARK, PB .

GEOPHYSICAL JOURNAL INTERNATIONAL, 1993, 113 (02) :419-433

[4] Regional modelling of the Southern African geomagnetic field using harmonic splines [J].

Geese, A. ;

Mandea, M. ;

Lesur, V. ;

Hayn, M. .

GEOPHYSICAL JOURNAL INTERNATIONAL, 2010, 181 (03) :1329-1342

[5] Stochastic modeling of the Earth's magnetic field: Inversion for covariances over the observatory era [J].

Gillet, N. ;

Jault, D. ;

Finlay, C. C. ;

Olsen, N. .

GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS, 2013, 14 (04) :766-786

[6] Geomagnetic Core Field Secular Variation Models [J].

Gillet, N. ;

Lesur, V. ;

Olsen, N. .

SPACE SCIENCE REVIEWS, 2010, 155 (1-4) :129-145

[7] Models of Earth's main magnetic field incorporating flux and radial vorticity constraints [J].

Jackson, A. ;

Constable, C. G. ;

Walker, M. R. ;

Parker, R. L. .

GEOPHYSICAL JOURNAL INTERNATIONAL, 2007, 171 (01) :133-144

[8] INITIAL GEOMAGNETIC-FIELD MODEL FROM MAGSAT VECTOR DATA [J].

LANGEL, RA ;

ESTES, RH ;

MEAD, GD ;

FABIANO, EB ;

LANCASTER, ER .

GEOPHYSICAL RESEARCH LETTERS, 1980, 7 (10) :793-796

[9] Are geomagnetic data consistent with stably stratified flow at the core-mantle boundary? [J].

Lesur, V. ;

Whaler, K. ;

Wardinski, I. .

GEOPHYSICAL JOURNAL INTERNATIONAL, 2015, 201 (02) :929-946

[10] Post-processing scheme for modelling the lithospheric magnetic field [J].

Lesur, V. ;

Rother, M. ;

Vervelidou, F. ;

Hamoudi, M. ;

Thebault, E. .

SOLID EARTH, 2013, 4 (01) :105-118