CHAOS-2 - A geomagnetic field model derived from one decade of continuous satellite data

Geophysical Journal International

Volumn 179, Issue 3, 2009, Pages 1477-1487

  Olsen, Nils ^a   Mandea, Mioara ^b   Sabaka, Terence J ^c   Tøffner Clausen, Lars ^a  

^a TECHNICAL UNIVERSITY OF DENMARK   (Denmark)

^b GFZ GERMAN RESEARCH CENTRE FOR GEOSCIENCES   (Germany)

^c NASA GODDARD SPACE FLIGHT CENTER   (United States)

Author keywords

Core, outer core and inner core; Magnetic anomalies: modelling and interpretation; Rapid time variations; Satellite magnetics

Indexed keywords

CORE-MANTLE BOUNDARY; DATA INTERPRETATION; GEOMAGNETIC FIELD; INNER CORE; MAGNETIC ANOMALY; MAGNETIC INTENSITY; PARAMETERIZATION; SATELLITE DATA; SPHERICAL HARMONICS;

EID: 70450190131     PISSN: 0956540X     EISSN: 1365246X     Source Type: Journal    
DOI: 10.1111/j.1365-246X.2009.04386.x     Document Type: Article

References (34)

1. Bloxham J. Geomagnetic secular variation. PhD thesis 1985, Cambridge University
2. Constable CG, Parker RL. Smoothing, splines, and smoothing splines- Their application in geomagnetism. J. Comput. Phys. 1988, 78:493-508.
3. De Boor C. A practical guide to splines. Applied Mathematical Sciences, Vol. 27 2001, Springer-Verlag, New York
4. Finlay CC, Jackson A. Equatorially dominated magnetic field change at the surface of Earth's core. Science 2003, 300(5628):2084-2086.
5. Gillet N, Jackson A, Finlay CC. Maximum entropy regularization of time-dependent geomagnetic field models. Geophys. J. Int. 2007, 171(3):1005-1016.
6. Holme R. Modelling of attitude error in vector magnetic data: application to Ørsted data. Earth, Planets Space 2000, 52:1187-1197.
7. Holme R, Bloxham J. The treatment of attitude errors in satellite geomagnetic data. Phys. Earth planet. Inter. 1996, 98:221-233.
8. Holme R, Olsen N. Core-surface flow modelling from high resolution secular variation. Geophys. J. Int. 2006, 518-528. pp
9. Jackson A, Jonkers ART, Walker MR. Four centuries of geomagnetic secular variation from historical records. Phil. Trans. R. Soc. Lond., A 2000, 358:957-990.
10. Korte M, Constable CG. Spatial and temporal resolution of millennial scale geomagnetic field models. Adv. Space Res. 2008, 41(1):57-69. doi
11. Korte M, Mandea M. Magnetic poles and dipole tilt variation over the past decades to millennia. Earth, Planets Space 2008, 60:937-948.
12. Langel RA, Estes RH. The near-Earth magnetic field at 1980 determined from MAGSAT data. J. geophys. Res. 1985, 90:2495-2509.
13. Langel RA, Ridgway JR, Sugiura M, Maezawa K. The geomagnetic field at 1982 from DE-2 and other magnetic field data. J. Geomagnet. Geoelectr. 1988, 40:1103-1127.
14. Langlais B, Mandea M, Ultré-Guérard P. High-resolution magnetic field modeling: application to MAGSAT and Ørsted data. Phys. Earth planet. Inter. 2003, 135:77-91.
15. Lesur V, Wardinski I, Rother M, Mandea M. GRIMM: the GFZ reference internal magnetic model based on vector satellite and observatory data. Geophys. J. Int. 2008, 173:382-294.
16. Mandea M, Olsen N. A new approach to directly determine the secular variation from magnetic satellite observations. Geophys. Res. Lett. 2006, 33:L15306. doi
17. Maus S, Weidelt P. Separating the magnetospheric disturbance magnetic field into external and transient internal contributions using a 1D conductivity model of the Earth. Geophys. Res. Lett. 2004, 31:L12614. doi
18. Maus S, Lühr H, Balasis G, Rother M, Mandea M, Reigber C, Lühr H, Schwintzer P, Wickert J. Introducing POMME, the POtsdam Magnetic Model of the Earth. Earth Observation with CHAMP, Results from Three Years in Orbit 2005, 293-298. in, eds, pp, Springer Verlag, Berlin
19. Maus S, Rother M, Stolle C, Mai W, Choi S, Lühr H, Cooke D, Roth C. Third generation of the Potsdam Magnetic Model of the Earth (POMME). Geochem. Geophys. Geosyst. 2006, 7:Q07008. doi
20. Menke W. Geophysical Data Analysis: Discrete Inverse Theory 1984, Academic Press, New York
21. Olsen N. A model of the geomagnetic field and its secular variation for epoch 2000 estimated from Ørsted data. Geophys. J. Int. 2002, 149(2):454-462.
22. Olsen N, Mandea M. Investigation of a secular variation impulse using satellite data: the 2003 geomagnetic jerk. Earth Planet. Science Lett. 2007, 255:94-105. doi
23. Olsen N, Mandea M. Rapidly changing flows in the Earth's core. Nat. Geosci. 2008, 1(6):390-394.
24. Olsen N, Sabaka TJ, Tøffner-Clausen L. Determination of the IGRF 2000 model. Earth, Planets Space 2000a, 52:1175-1182.
25. Olsen N. Ørsted initial field model. Geophys. Res. Lett. 2000b, 27:3607-3610.
26. Olsen N, Sabaka TJ, Lowes F. New parameterization of external and induced fields in geomagnetic field modeling, and a candidate model for IGRF 2005. Earth, Planets Space 2005, 57:1141-1149.
27. Olsen N, Lühr H, Sabaka TJ, Mandea M, Rother M, Tøffner-Clausen L, Choi S. CHAOS-a model of Earth's magnetic field derived from CHAMP, Ørsted, and SAC-C magnetic satellite data. Geophys. J. Int. 2006, 166:67-75. doi
28. Pais MA, Jault D. Quasi-geostrophic flows responsible for the secular variation of the Earth's magnetic field. Geophys. J. Int. 2008, 173:421-443.
29. Sabaka TJ, Olsen N, Purucker ME. Extending comprehensive models of the Earth's magnetic field with Ørsted and CHAMP data. Geophys. J. Int. 2004, 159:521-547. doi
30. Schumaker LL. Spline Functions: Basic Theory 1981, John Wiley & Sons, New York
31. Shure L, Parker RL, Backus GE. Harmonic splines for geomagnetic modelling. Phys. Earth planet. Inter. 1982, 28:215-229. doi
32. Silverman BW. Spline smoothing: the equivalent variable kernel method. Ann. Stat. 1984, 898-916. pp
33. Thomson AWP, Lesur V. An improved geomagnetic data selection algorithm for global geomagnetic field modelling. Geophys. J. Int. 2007, 169(3):951-963.
34. Wardinski I, Holme R. A time-dependent model of the Earth's magnetic field and its secular variation for the period 1980-2000. J. geophys. Res. 2006, 111:B12101. doi