A Model of the Earth's Magnetic Field From Two Year of Swarm Satellite Constellation Data

Research output: Contribution to conferenceConference abstract for conferenceResearchpeer-review

Abstract

More than two year of data from ESA's Swarm constellation mission are used to derive a model of the Earth’s magnetic field and its time variation (secular variation). The model describes contributions from the core and lithosphere as well as large-scale contributions from the magnetosphere (and its Earth-induced counterpart). We use data from geomagnetic quiet times and co-estimate the Euler angles describing the rotation between the vector magnetometer instrument frame and the North-East-Center (NEC) frame. In addition to the magnetic field observations provided by each of the three Swarm satellites and alongtrack first differences we include the East-west magnetic gradient information provided by the lower Swarm satellite pair, thereby explicitly taking advantage of the constellation aspect of Swarm.
We assess the spatial and temporal model resolution that can be obtained from two years of Swarm satellite data by comparison with other recent models that also include non-Swarm magnetic observations.
Original languageEnglish
Publication date2016
Number of pages1
Publication statusPublished - 2016
EventESA Living Planet Symposium 2016 - Prague, Czech Republic
Duration: 9 May 201613 May 2016
http://lps16.esa.int/

Conference

ConferenceESA Living Planet Symposium 2016
CountryCzech Republic
CityPrague
Period09/05/201613/05/2016
Internet address

Cite this

Olsen, N., Finlay, C., Tøffner-Clausen, L., & Kotsiaros, S. (2016). A Model of the Earth's Magnetic Field From Two Year of Swarm Satellite Constellation Data. Abstract from ESA Living Planet Symposium 2016, Prague, Czech Republic.
Olsen, Nils ; Finlay, Chris ; Tøffner-Clausen, Lars ; Kotsiaros, Stavros. / A Model of the Earth's Magnetic Field From Two Year of Swarm Satellite Constellation Data. Abstract from ESA Living Planet Symposium 2016, Prague, Czech Republic.1 p.
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abstract = "More than two year of data from ESA's Swarm constellation mission are used to derive a model of the Earth’s magnetic field and its time variation (secular variation). The model describes contributions from the core and lithosphere as well as large-scale contributions from the magnetosphere (and its Earth-induced counterpart). We use data from geomagnetic quiet times and co-estimate the Euler angles describing the rotation between the vector magnetometer instrument frame and the North-East-Center (NEC) frame. In addition to the magnetic field observations provided by each of the three Swarm satellites and alongtrack first differences we include the East-west magnetic gradient information provided by the lower Swarm satellite pair, thereby explicitly taking advantage of the constellation aspect of Swarm.We assess the spatial and temporal model resolution that can be obtained from two years of Swarm satellite data by comparison with other recent models that also include non-Swarm magnetic observations.",
author = "Nils Olsen and Chris Finlay and Lars T{\o}ffner-Clausen and Stavros Kotsiaros",
year = "2016",
language = "English",
note = "ESA Living Planet Symposium 2016 ; Conference date: 09-05-2016 Through 13-05-2016",
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Olsen, N, Finlay, C, Tøffner-Clausen, L & Kotsiaros, S 2016, 'A Model of the Earth's Magnetic Field From Two Year of Swarm Satellite Constellation Data', ESA Living Planet Symposium 2016, Prague, Czech Republic, 09/05/2016 - 13/05/2016.

A Model of the Earth's Magnetic Field From Two Year of Swarm Satellite Constellation Data. / Olsen, Nils; Finlay, Chris; Tøffner-Clausen, Lars; Kotsiaros, Stavros.

2016. Abstract from ESA Living Planet Symposium 2016, Prague, Czech Republic.

Research output: Contribution to conferenceConference abstract for conferenceResearchpeer-review

TY - ABST

T1 - A Model of the Earth's Magnetic Field From Two Year of Swarm Satellite Constellation Data

AU - Olsen, Nils

AU - Finlay, Chris

AU - Tøffner-Clausen, Lars

AU - Kotsiaros, Stavros

PY - 2016

Y1 - 2016

N2 - More than two year of data from ESA's Swarm constellation mission are used to derive a model of the Earth’s magnetic field and its time variation (secular variation). The model describes contributions from the core and lithosphere as well as large-scale contributions from the magnetosphere (and its Earth-induced counterpart). We use data from geomagnetic quiet times and co-estimate the Euler angles describing the rotation between the vector magnetometer instrument frame and the North-East-Center (NEC) frame. In addition to the magnetic field observations provided by each of the three Swarm satellites and alongtrack first differences we include the East-west magnetic gradient information provided by the lower Swarm satellite pair, thereby explicitly taking advantage of the constellation aspect of Swarm.We assess the spatial and temporal model resolution that can be obtained from two years of Swarm satellite data by comparison with other recent models that also include non-Swarm magnetic observations.

AB - More than two year of data from ESA's Swarm constellation mission are used to derive a model of the Earth’s magnetic field and its time variation (secular variation). The model describes contributions from the core and lithosphere as well as large-scale contributions from the magnetosphere (and its Earth-induced counterpart). We use data from geomagnetic quiet times and co-estimate the Euler angles describing the rotation between the vector magnetometer instrument frame and the North-East-Center (NEC) frame. In addition to the magnetic field observations provided by each of the three Swarm satellites and alongtrack first differences we include the East-west magnetic gradient information provided by the lower Swarm satellite pair, thereby explicitly taking advantage of the constellation aspect of Swarm.We assess the spatial and temporal model resolution that can be obtained from two years of Swarm satellite data by comparison with other recent models that also include non-Swarm magnetic observations.

M3 - Conference abstract for conference

ER -

Olsen N, Finlay C, Tøffner-Clausen L, Kotsiaros S. A Model of the Earth's Magnetic Field From Two Year of Swarm Satellite Constellation Data. 2016. Abstract from ESA Living Planet Symposium 2016, Prague, Czech Republic.