Towards an improved determination of Earth’s lithospheric field from satellite observations

Stavros Kotsiaros, Nils Olsen, Chris Finlay

Research output: Contribution to conferenceConference abstract for conferenceResearchpeer-review

Abstract

Perhaps one of the biggest difficulties in modelling the Earth’s lithospheric magnetic field is the separation of contributions from sources of internal and external origin. In particular, the determination of smaller-scale lithospheric magnetic field features is problematic because the lithospheric signal is contaminated by much larger and highly time-dependent contributions from sources in the ionosphere and magnetosphere. Simultaneous, high-quality measurements from different locations as well as gradient estimates provided by the three Swarm satellites open new possibilities in lithospheric field modeling. Field gradients can be approximated by employing along-track and across-track field differences which act as high-pass filters of the data and data kernel. We present improvements of conventional lithospheric field modeling approaches to better determine the small-scale lithospheric field by incorporating gradient information.
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

Kotsiaros, S., Olsen, N., & Finlay, C. (2016). Towards an improved determination of Earth’s lithospheric field from satellite observations. Abstract from ESA Living Planet Symposium 2016, Prague, Czech Republic.
Kotsiaros, Stavros ; Olsen, Nils ; Finlay, Chris. / Towards an improved determination of Earth’s lithospheric field from satellite observations. Abstract from ESA Living Planet Symposium 2016, Prague, Czech Republic.1 p.
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note = "ESA Living Planet Symposium 2016 ; Conference date: 09-05-2016 Through 13-05-2016",
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Kotsiaros, S, Olsen, N & Finlay, C 2016, 'Towards an improved determination of Earth’s lithospheric field from satellite observations', ESA Living Planet Symposium 2016, Prague, Czech Republic, 09/05/2016 - 13/05/2016.

Towards an improved determination of Earth’s lithospheric field from satellite observations. / Kotsiaros, Stavros; Olsen, Nils; Finlay, Chris.

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

Research output: Contribution to conferenceConference abstract for conferenceResearchpeer-review

TY - ABST

T1 - Towards an improved determination of Earth’s lithospheric field from satellite observations

AU - Kotsiaros, Stavros

AU - Olsen, Nils

AU - Finlay, Chris

PY - 2016

Y1 - 2016

N2 - Perhaps one of the biggest difficulties in modelling the Earth’s lithospheric magnetic field is the separation of contributions from sources of internal and external origin. In particular, the determination of smaller-scale lithospheric magnetic field features is problematic because the lithospheric signal is contaminated by much larger and highly time-dependent contributions from sources in the ionosphere and magnetosphere. Simultaneous, high-quality measurements from different locations as well as gradient estimates provided by the three Swarm satellites open new possibilities in lithospheric field modeling. Field gradients can be approximated by employing along-track and across-track field differences which act as high-pass filters of the data and data kernel. We present improvements of conventional lithospheric field modeling approaches to better determine the small-scale lithospheric field by incorporating gradient information.

AB - Perhaps one of the biggest difficulties in modelling the Earth’s lithospheric magnetic field is the separation of contributions from sources of internal and external origin. In particular, the determination of smaller-scale lithospheric magnetic field features is problematic because the lithospheric signal is contaminated by much larger and highly time-dependent contributions from sources in the ionosphere and magnetosphere. Simultaneous, high-quality measurements from different locations as well as gradient estimates provided by the three Swarm satellites open new possibilities in lithospheric field modeling. Field gradients can be approximated by employing along-track and across-track field differences which act as high-pass filters of the data and data kernel. We present improvements of conventional lithospheric field modeling approaches to better determine the small-scale lithospheric field by incorporating gradient information.

M3 - Conference abstract for conference

ER -

Kotsiaros S, Olsen N, Finlay C. Towards an improved determination of Earth’s lithospheric field from satellite observations. 2016. Abstract from ESA Living Planet Symposium 2016, Prague, Czech Republic.