CHAOS-a model of the Earth's magnetic field derived from CHAMP, Orsted, and SAC-C magnetic satellite data

Nils Olsen; H. Luhr; T.J. Sabaka; M. Mandea; M. Rother; L. Tofner-Clausen; S. Choi

CHAOS-a model of the Earth's magnetic field derived from CHAMP, Orsted, and SAC-C magnetic satellite data

Nils Olsen, H. Luhr, T.J. Sabaka, M. Mandea, M. Rother, L. Tofner-Clausen, S. Choi

Research output: Contribution to journal › Journal article › Research › peer-review

Abstract

We have derived a model of the near-Earth magnetic field (up to spherical harmonic degree n= 50 for the static field, and up to n = 18 for the first time derivative) using more than 6.5 yr of high-precision geomagnetic measurements from the three satellites Orsted, CHAMP and SAC-C taken between 1999 March and 2005 December. Our modelling approach goes in several aspects beyond that used for recent models: (i) we use different data selection criteria and allow for higher geomagnetic activity (index Kp

Original language	English
Journal	Geophysical Journal International
Volume	166
Issue number	1
Pages (from-to)	67-75
ISSN	0956-540X
Publication status	Published - 2006

Keywords

satellite
geomagnetic secular variation
lithosphere
geomagnetism
Earth's magnetic field
spherical harmonics

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title = "CHAOS-a model of the Earth's magnetic field derived from CHAMP, Orsted, and SAC-C magnetic satellite data",

abstract = "We have derived a model of the near-Earth magnetic field (up to spherical harmonic degree n= 50 for the static field, and up to n = 18 for the first time derivative) using more than 6.5 yr of high-precision geomagnetic measurements from the three satellites Orsted, CHAMP and SAC-C taken between 1999 March and 2005 December. Our modelling approach goes in several aspects beyond that used for recent models: (i) we use different data selection criteria and allow for higher geomagnetic activity (index Kp ",

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author = "Nils Olsen and H. Luhr and T.J. Sabaka and M. Mandea and M. Rother and L. Tofner-Clausen and S. Choi",

year = "2006",

language = "English",

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T1 - CHAOS-a model of the Earth's magnetic field derived from CHAMP, Orsted, and SAC-C magnetic satellite data

AU - Olsen, Nils

AU - Luhr, H.

AU - Sabaka, T.J.

AU - Mandea, M.

AU - Rother, M.

AU - Tofner-Clausen, L.

AU - Choi, S.

PY - 2006

Y1 - 2006

N2 - We have derived a model of the near-Earth magnetic field (up to spherical harmonic degree n= 50 for the static field, and up to n = 18 for the first time derivative) using more than 6.5 yr of high-precision geomagnetic measurements from the three satellites Orsted, CHAMP and SAC-C taken between 1999 March and 2005 December. Our modelling approach goes in several aspects beyond that used for recent models: (i) we use different data selection criteria and allow for higher geomagnetic activity (index Kp

AB - We have derived a model of the near-Earth magnetic field (up to spherical harmonic degree n= 50 for the static field, and up to n = 18 for the first time derivative) using more than 6.5 yr of high-precision geomagnetic measurements from the three satellites Orsted, CHAMP and SAC-C taken between 1999 March and 2005 December. Our modelling approach goes in several aspects beyond that used for recent models: (i) we use different data selection criteria and allow for higher geomagnetic activity (index Kp

KW - satellite

KW - geomagnetic secular variation

KW - lithosphere

KW - geomagnetism

KW - Earth's magnetic field

KW - spherical harmonics

M3 - Journal article

SN - 0956-540X

VL - 166

SP - 67

EP - 75

JO - Geophysical Journal International

JF - Geophysical Journal International

IS - 1

ER -

CHAOS-a model of the Earth's magnetic field derived from CHAMP, Orsted, and SAC-C magnetic satellite data

Abstract

Keywords

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