Heat flux anomalies in Antarctica revealed from satellite magnetic data
The geothermal heat flux is an important factor in the dynamics of ice sheets; it affects the occurrence of subglacial lakes, the onset of ice streams, and mass losses from the ice sheet base. Because direct heat flux measurements in ice-covered regions are difficult to obtain, we developed a method...
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Online Access: | https://orbit.dtu.dk/en/publications/92d61a74-6a79-4d97-b724-711656ef5d7a https://doi.org/10.1126/science.1106888 |
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ftdtupubl:oai:pure.atira.dk:publications/92d61a74-6a79-4d97-b724-711656ef5d7a 2024-06-09T07:40:43+00:00 Heat flux anomalies in Antarctica revealed from satellite magnetic data Maule, Cathrine Fox Purucker, Michael E. Olsen, Nils Mosegaard, Klaus 2005 https://orbit.dtu.dk/en/publications/92d61a74-6a79-4d97-b724-711656ef5d7a https://doi.org/10.1126/science.1106888 eng eng https://orbit.dtu.dk/en/publications/92d61a74-6a79-4d97-b724-711656ef5d7a info:eu-repo/semantics/restrictedAccess Maule , C F , Purucker , M E , Olsen , N & Mosegaard , K 2005 , ' Heat flux anomalies in Antarctica revealed from satellite magnetic data ' , Science , vol. 309 , no. 5733 , pp. 464-467 . https://doi.org/10.1126/science.1106888 article 2005 ftdtupubl https://doi.org/10.1126/science.1106888 2024-05-14T23:54:36Z The geothermal heat flux is an important factor in the dynamics of ice sheets; it affects the occurrence of subglacial lakes, the onset of ice streams, and mass losses from the ice sheet base. Because direct heat flux measurements in ice-covered regions are difficult to obtain, we developed a method that uses satellite magnetic data to estimate the heat flux underneath the Antarctic ice sheet. We found that the heat flux underneath the ice sheet varies from 40 to 185 megawatts per square meter and that areas of high heat flux coincide with known current volcanism and some areas known to have ice streams. Article in Journal/Newspaper Antarc* Antarctic Antarctica Ice Sheet Technical University of Denmark: DTU Orbit Antarctic The Antarctic Science 309 5733 464 467 |
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Open Polar |
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Technical University of Denmark: DTU Orbit |
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ftdtupubl |
language |
English |
description |
The geothermal heat flux is an important factor in the dynamics of ice sheets; it affects the occurrence of subglacial lakes, the onset of ice streams, and mass losses from the ice sheet base. Because direct heat flux measurements in ice-covered regions are difficult to obtain, we developed a method that uses satellite magnetic data to estimate the heat flux underneath the Antarctic ice sheet. We found that the heat flux underneath the ice sheet varies from 40 to 185 megawatts per square meter and that areas of high heat flux coincide with known current volcanism and some areas known to have ice streams. |
format |
Article in Journal/Newspaper |
author |
Maule, Cathrine Fox Purucker, Michael E. Olsen, Nils Mosegaard, Klaus |
spellingShingle |
Maule, Cathrine Fox Purucker, Michael E. Olsen, Nils Mosegaard, Klaus Heat flux anomalies in Antarctica revealed from satellite magnetic data |
author_facet |
Maule, Cathrine Fox Purucker, Michael E. Olsen, Nils Mosegaard, Klaus |
author_sort |
Maule, Cathrine Fox |
title |
Heat flux anomalies in Antarctica revealed from satellite magnetic data |
title_short |
Heat flux anomalies in Antarctica revealed from satellite magnetic data |
title_full |
Heat flux anomalies in Antarctica revealed from satellite magnetic data |
title_fullStr |
Heat flux anomalies in Antarctica revealed from satellite magnetic data |
title_full_unstemmed |
Heat flux anomalies in Antarctica revealed from satellite magnetic data |
title_sort |
heat flux anomalies in antarctica revealed from satellite magnetic data |
publishDate |
2005 |
url |
https://orbit.dtu.dk/en/publications/92d61a74-6a79-4d97-b724-711656ef5d7a https://doi.org/10.1126/science.1106888 |
geographic |
Antarctic The Antarctic |
geographic_facet |
Antarctic The Antarctic |
genre |
Antarc* Antarctic Antarctica Ice Sheet |
genre_facet |
Antarc* Antarctic Antarctica Ice Sheet |
op_source |
Maule , C F , Purucker , M E , Olsen , N & Mosegaard , K 2005 , ' Heat flux anomalies in Antarctica revealed from satellite magnetic data ' , Science , vol. 309 , no. 5733 , pp. 464-467 . https://doi.org/10.1126/science.1106888 |
op_relation |
https://orbit.dtu.dk/en/publications/92d61a74-6a79-4d97-b724-711656ef5d7a |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1126/science.1106888 |
container_title |
Science |
container_volume |
309 |
container_issue |
5733 |
container_start_page |
464 |
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467 |
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1801369116666232832 |