Lars Tøffner-Clausen

Lars Tøffner-Clausen

Special Consultant

DTU SPACE
National Space Institute

Geomagnetism

Technical University of Denmark

Centrifugevej

Building 356, room 013

2800 Kgs. Lyngby

Ph.
Fax +45 45 25 97 01
E-mail lastec@space.dtu.dk
ORCID 0000-0003-4314-3776

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2018
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A comprehensive model of Earth’s magnetic field determined from 4 years of Swarm satellite observations

Sabaka, Terence J. ; Tøffner-Clausen, Lars ; Olsen, Nils ; Finlay, Christopher C.
in: Earth, Planets and Space, vol: 70, issue: 1

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2018     |    DOI: https://doi.org/10.1186/s40623-018-0896-3

2017
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Joint inversion of satellite-detected tidal and magnetospheric signals constrains electrical conductivity and water content of the upper mantle and transition zone

Grayver, Alexander V. ; Munch, F. D. ; Kuvshinov, Alexey V. ; Khan, A. ; Sabaka, T. J. ; Tøffner-Clausen, Lars
in: Geophysical Research Letters, vol: 44, issue: 12, pages: 6074-6081

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2017     |    DOI: https://doi.org/10.1002/2017GL073446

2016
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A model of Earth’s magnetic field derived from 2 years of Swarm satellite constellation data

Olsen, Nils ; Finlay, Chris ; Kotsiaros, Stavros ; Tøffner-Clausen, Lars
in: Earth, Planets and Space, vol: 68, issue: 1

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2016     |    DOI: https://doi.org/10.1186/s40623-016-0488-z

 

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
Presented at:
ESA Living Planet Symposium 2016

Type: Conference abstract for conference (Peer reviewed)

Status: Published     |    Year: 2016

 

Changes in Earth's core-generated magnetic field, as observed by Swarm

Finlay, Chris ; Olsen, Nils ; Gillet, Nicolas ; Kotsiaros, Stavros ; Tøffner-Clausen, Lars ; Hammer, Magnus Danel
Presented at:
ESA Living Planet Symposium 2016

Type: Conference abstract for conference (Peer reviewed)

Status: Published     |    Year: 2016

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In-flight scalar calibration and characterisation of the Swarm magnetometry package

Tøffner-Clausen, Lars ; Lesur, Vincent ; Olsen, Nils ; Finlay, Chris
in: Earth, Planets and Space, vol: 68, issue: 1

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2016     |    DOI: https://doi.org/10.1186/s40623-016-0501-6

 

Level-2 product generation for the Swarm satellite constellation mission

Olsen, Poul Erik Holmdahl ; Tøffner-Clausen, Lars ; Olsen, Nils
Presented at:
ESA Living Planet Symposium 2016

Type: Conference abstract for conference (Peer reviewed)

Status: Published     |    Year: 2016

 

Magnetic Package data quality overview

Qamili, Enkelejda ; Ottavianelli, Giuseppe ; Olsen, Nils ; Tøffner-Clausen, Lars ; Mecozzi, Riccardo ; Coco , Igino ; Vogel, Pierre ; Floberghagen, Rune
Presented at:
ESA Living Planet Symposium 2016

Type: Conference abstract for conference (Peer reviewed)

Status: Published     |    Year: 2016

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Recent geomagnetic secular variation from Swarm and ground observatories as estimated in the CHAOS-6 geomagnetic field model

Finlay, Chris ; Olsen, Nils ; Kotsiaros, Stavros ; Gillet, Nicolas ; Tøffner-Clausen, Lars
in: EARTH PLANETS AND SPACE, vol: 68

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2016     |    DOI: https://doi.org/10.1186/s40623-016-0486-1

 

Swarm Level 2 Comprehensive Inversion, 2016 Production

Tøffner-Clausen, Lars ; Sabaka, Terence ; Olsen, Nils ; Finlay, Chris
Presented at:
ESA Living Planet Symposium 2016

Type: Conference abstract for conference (Peer reviewed)

Status: Published     |    Year: 2016

 

Swarm: Recent Progress in Analysis of the Sun Induced Magnetic Disturbance

Tøffner-Clausen, Lars ; Lesur, Vincent ; Brauer, Peter ; Olsen, Nils ; Finlay, Chris ; Qamili, Enkelejda
Presented at:
ESA Living Planet Symposium 2016

Type: Conference abstract for conference (Peer reviewed)

Status: Published     |    Year: 2016

2015
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DTU candidate field models for IGRF-12 and the CHAOS-5 geomagnetic field model

Finlay, Chris ; Olsen, Nils ; Tøffner-Clausen, Lars
in: Earth, Planets and Space, vol: 67, issue: 114

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2015     |    DOI: https://doi.org/10.1186/s40623-015-0274-3

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International Geomagnetic Reference Field: the 12th generation

Thébault, Erwan ; Finlay, Chris ; Beggan, Ciarán D. ; Alken, Patrick ; Aubert, Julien ; Barrois, Olivier ; Bertrand, Francois ; Bondar, Tatiana ; Boness, Axel ; Brocco, Laura ; Olsen, Nils ; Tøffner-Clausen, Lars
in: Earth, Planets and Space, vol: 67, issue: 1, pages: 1-19

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2015     |    DOI: https://doi.org/10.1186/s40623-015-0228-9

 

The Swarm Initial Field Model for the 2014 geomagnetic field

Olsen, Nils ; Hulot, Gauthier ; Lesur, Vincent ; Finlay, Chris ; Beggan, Ciaran ; Chulliat, Amaud ; Sabaka, Terence J. ; Floberghagen, Rune ; Friis-Christensen, Eigil ; Kotsiaros, Stavros ; Tøffner-Clausen, Lars
in: Geophysical Research Letters, vol: 42, pages: 1092-1098

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2015     |    DOI: https://doi.org/10.1002/2014GL062659

2014
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The CHAOS-4 geomagnetic field model

Olsen, Nils ; Lühr, H. ; Finlay, Chris ; Sabaka, T. J. ; Michaelis, I. ; Rauberg, J. ; Tøffner-Clausen, Lars
in: Geophysical Journal International, vol: 197, issue: 2, pages: 815-827

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2014     |    DOI: https://doi.org/10.1093/gji/ggu033

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Towards CHAOS-5 - How can Swarm contribute?

Finlay, Chris ; Olsen, Nils ; Tøffner-Clausen, Lars
in: Geophysical Research Abstracts, vol: 16
Presented at:
European Geosciences Union General Assembly 2014

Type: Conference abstract in journal (Peer reviewed)

Status: Published     |    Year: 2014

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Updating the CHAOS series of field models using Swarm data and resulting candidate models for IGRF-12

Finlay, Chris ; Olsen, Nils ; Tøffner-Clausen, Lars
Presented at:
2014 AGU Fall Meeting

Type: Conference abstract for conference (Peer reviewed)

Status: Published     |    Year: 2014

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Use of Swarm data to study the core surface magnetic field

Finlay, Christopher C. ; Olsen, Nils ; Tøffner-Clausen, Lars
part of: Program and Abstract Volume - 14th international symposium on Study of Earth’s Deep Interior (SEDI), 2015
Presented at:
14th international symposium on Study of Earth’s Deep Interior (SEDI)

Type: Conference abstract in proceedings (Peer reviewed)

Status: Published     |    Year: 2014

2013
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Bridging the gap between champ and swarm using oersted and ground observatory data

Finlay, Chris ; Olsen, Nils ; Hermann, Luehr ; Sabaka, Terrence J. ; Tøffner-Clausen, Lars
part of: Living on a Magnetic Planet - Abstract Volume, pages: 7, 2013, IAGA, Mexico
Presented at:
IAGA 2013 The 12th Scientific Assembly

Type: Conference abstract in proceedings (Peer reviewed)

Status: Published     |    Year: 2013

 

The CHAOS-4 Geomagnetic Field Model

Olsen, Nils ; Finlay, Chris ; Lühr, H. ; Sabaka, T. J. ; Michaelis, I. ; Rauberg, J. ; Tøffner-Clausen, Lars
Presented at:
AGU Fall Meeting 2013

Type: Conference abstract for conference (Peer reviewed)

Status: Published     |    Year: 2013

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The Swarm Satellite Constellation Application and Research Facility (SCARF) and Swarm data products

Olsen, Nils ; Friis-Christensen, Eigil ; Floberghagen, R. ; Alken, P. ; Beggan, C. D. ; Chulliat, A. ; Doornbos, E. ; Teixeira da Encarnacao, J. ; Hamilton, B. ; Hulot, G. ; van den IJssel, J. ; Kuvshinov, A. ; Lesur, V. ; Lühr, H. ; Macmillan, S. ; Maus, S. ; Noja, M. ; Olsen, Poul Erik Holmdahl ; Park, J. ; Plank, G. ; Püthe, C. ; Rauberg, J. ; Ritter, P. ; Rother, M. ; Sabaka, T. J. ; Schachtschneider, R. ; Sirol, O. ; Stolle, Claudia ; Thebault, E. ; Thomson, A. W. P. ; Tøffner-Clausen, Lars ; Velimsky, J. ; Vigneron, P. ; Visser, P. N.
in: Earth, Planets and Space, vol: 64, issue: 11, pages: 1189-1200

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2013     |    DOI: https://doi.org/10.5047/eps.2013.07.001

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Use of the Comprehensive Inversion method for Swarm satellite data analysis

Sabaka, T. J. ; Tøffner-Clausen, Lars ; Olsen, Nils
in: Earth Planets Space, vol: 65, issue: 11, pages: 1201-1222

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2013     |    DOI: https://doi.org/10.5047/eps.2013.09.007

2010
 

International Geomagnetic Reference Field

Finlay, Chris ; Maus, S. ; Beggan, C. D. ; Bondar, T. N. ; Chambodut, A. ; Chernova, T. A. ; Chulliat, A. ; Golovkov, V. P. ; Hamilton, B. ; Hamoudi, M. ; Holme, R. ; Hulot, G. ; Kuang, W. ; Langlais, B. ; Lesur, V. ; Lowes, F. J. ; Lühr, H. ; Macmillan, S. ; Mandea, M. ; McLean, S. ; Manoj, C. ; Menvielle, M. ; Michaelis, I. ; Olsen, Nils ; Rauberg, J. ; Rother, M. ; Sabaka, T. J. ; Tangborn, A. ; Tøffner-Clausen, Lars ; Thébault, E. ; Thomson, A. W. P. ; Wardinski, I. ; Wei, Z. ; Zvereva, T. I.
in: Geophysical Journal International, vol: 183, issue: 3, pages: 1216-1230

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2010     |    DOI: https://doi.org/10.1111/j.1365-246X.2010.04804.x

 

The CHAOS-3 Geomagnetic Field Model and Candidates for the 11th Generation IGRF

Olsen, Nils ; Mandea, Mioara ; Sabaka, Terence J. ; Tøffner-Clausen, Lars
in: Earth, Planets and Space, vol: 62, issue: 10, pages: 719-727

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2010     |    DOI: https://doi.org/10.5047/eps.2010.07.003

2009
 

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

Olsen, Nils ; Mandea, M. ; Sabaka, T.J. ; Tøffner-Clausen, Lars
in: Geophysical Journal International, vol: 179, issue: 3, pages: 1477-1487

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2009     |    DOI: https://doi.org/10.1111/j.1365-246X.2009.04386.x

2008
 

Feasibility of a Constellation of Miniature Satellites for Performing Measurements of the Magnetic Field of the Earth

Thomsen, Michael ; Merayo, José M.G. ; Brauer, Peter ; Vennerstrøm, Susanne ; Olsen, Nils ; Tøffner-Clausen, Lars
part of: Small Satellites for Earth Observation, pages: 123-132, 2008, Springer, Netherlands

Type: Book chapter (Peer reviewed)

Status: Published     |    Year: 2008     |    DOI: https://doi.org/10.1007/978-1-4020-6943-7_11

2005
 

Improvements of geomagnetic field models made during the first years of the International Decade

Olsen, Nils ; Lühr, Hermann ; Sabaka, Terence ; Tøffner-Clausen, Lars ; Kuvshinov, Alexei
Presented at:
IAGA 2005 Conference

Type: Sound/Visual production (digital)

Status: Published     |    Year: 2005

2003
 

Calibration of the Ørsted vector magnetometer

Olsen, Nils ; Tøffner-Clausen, Lars ; Sabaka, T.J. ; Brauer, Peter ; Merayo, José M.G. ; Jørgensen, John Leif ; Leger, J.M. ; Nielsen, Otto V ; Primdahl, Fritz ; Risbo, T.
in: EARTH PLANETS AND SPACE, vol: 55, issue: 1, pages: 11-18

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2003

2000
 

Determination of the IGRF 2000 model

Olsen, Nils ; Sabaka, T.J. ; Tøffner-Clausen, Lars
in: EARTH PLANETS AND SPACE, vol: 52, issue: 12, pages: 1175-1182

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2000