Heat Flux Distribution of Antarctica Unveiled
Antarctica is the largest reservoir of ice on Earth. Understanding its ice sheet dynamics is crucial to unraveling past global climate change and making robust climatic and sea level predictions. Of the basic parameters that shape and control ice flow, the most poorly known is geothermal heat flux....
Published in: | Geophysical Research Letters |
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Online Access: | https://epic.awi.de/id/eprint/46030/ https://epic.awi.de/id/eprint/46030/1/Martos_etal_2017_heatfluxANT_GRL.pdf https://hdl.handle.net/10013/epic.f9a5e9d8-284d-4d36-a579-11f4ea721081 |
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ftawi:oai:epic.awi.de:46030 2024-09-15T17:42:06+00:00 Heat Flux Distribution of Antarctica Unveiled Martos, Yasmina M. Catalán, Manuel Jordan, Tom A. Golynsky, Alexander Golynsky, Dimitry Eagles, Graeme Vaughan, David G. 2017 application/pdf https://epic.awi.de/id/eprint/46030/ https://epic.awi.de/id/eprint/46030/1/Martos_etal_2017_heatfluxANT_GRL.pdf https://hdl.handle.net/10013/epic.f9a5e9d8-284d-4d36-a579-11f4ea721081 unknown Wiley https://epic.awi.de/id/eprint/46030/1/Martos_etal_2017_heatfluxANT_GRL.pdf Martos, Y. M. , Catalán, M. , Jordan, T. A. , Golynsky, A. , Golynsky, D. , Eagles, G. orcid:0000-0001-5325-0810 and Vaughan, D. G. (2017) Heat Flux Distribution of Antarctica Unveiled , Geophysical Research Letters, 44 . doi:10.1002/2017GL075609 <https://doi.org/10.1002/2017GL075609> , hdl:10013/epic.f9a5e9d8-284d-4d36-a579-11f4ea721081 EPIC3Geophysical Research Letters, Wiley, 44, ISSN: 0094-8276 Article isiRev 2017 ftawi https://doi.org/10.1002/2017GL075609 2024-06-24T04:18:50Z Antarctica is the largest reservoir of ice on Earth. Understanding its ice sheet dynamics is crucial to unraveling past global climate change and making robust climatic and sea level predictions. Of the basic parameters that shape and control ice flow, the most poorly known is geothermal heat flux. Direct observations of heat flux are difficult to obtain in Antarctica, and until now continent-wide heat flux maps have only been derived from low-resolution satellite magnetic and seismological data. We present a high-resolution heat flux map and associated uncertainty derived from spectral analysis of the most advanced continental compilation of airborne magnetic data. Small-scale spatial variability and features consistent with known geology are better reproduced than in previous models, between 36% and 50%. Our high-resolution heat flux map and its uncertainty distribution provide an important new boundary condition to be used in studies on future subglacial hydrology, ice sheet dynamics, and sea level change. Article in Journal/Newspaper Antarc* Antarctica Ice Sheet Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Geophysical Research Letters 44 22 11,417 11,426 |
institution |
Open Polar |
collection |
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
op_collection_id |
ftawi |
language |
unknown |
description |
Antarctica is the largest reservoir of ice on Earth. Understanding its ice sheet dynamics is crucial to unraveling past global climate change and making robust climatic and sea level predictions. Of the basic parameters that shape and control ice flow, the most poorly known is geothermal heat flux. Direct observations of heat flux are difficult to obtain in Antarctica, and until now continent-wide heat flux maps have only been derived from low-resolution satellite magnetic and seismological data. We present a high-resolution heat flux map and associated uncertainty derived from spectral analysis of the most advanced continental compilation of airborne magnetic data. Small-scale spatial variability and features consistent with known geology are better reproduced than in previous models, between 36% and 50%. Our high-resolution heat flux map and its uncertainty distribution provide an important new boundary condition to be used in studies on future subglacial hydrology, ice sheet dynamics, and sea level change. |
format |
Article in Journal/Newspaper |
author |
Martos, Yasmina M. Catalán, Manuel Jordan, Tom A. Golynsky, Alexander Golynsky, Dimitry Eagles, Graeme Vaughan, David G. |
spellingShingle |
Martos, Yasmina M. Catalán, Manuel Jordan, Tom A. Golynsky, Alexander Golynsky, Dimitry Eagles, Graeme Vaughan, David G. Heat Flux Distribution of Antarctica Unveiled |
author_facet |
Martos, Yasmina M. Catalán, Manuel Jordan, Tom A. Golynsky, Alexander Golynsky, Dimitry Eagles, Graeme Vaughan, David G. |
author_sort |
Martos, Yasmina M. |
title |
Heat Flux Distribution of Antarctica Unveiled |
title_short |
Heat Flux Distribution of Antarctica Unveiled |
title_full |
Heat Flux Distribution of Antarctica Unveiled |
title_fullStr |
Heat Flux Distribution of Antarctica Unveiled |
title_full_unstemmed |
Heat Flux Distribution of Antarctica Unveiled |
title_sort |
heat flux distribution of antarctica unveiled |
publisher |
Wiley |
publishDate |
2017 |
url |
https://epic.awi.de/id/eprint/46030/ https://epic.awi.de/id/eprint/46030/1/Martos_etal_2017_heatfluxANT_GRL.pdf https://hdl.handle.net/10013/epic.f9a5e9d8-284d-4d36-a579-11f4ea721081 |
genre |
Antarc* Antarctica Ice Sheet |
genre_facet |
Antarc* Antarctica Ice Sheet |
op_source |
EPIC3Geophysical Research Letters, Wiley, 44, ISSN: 0094-8276 |
op_relation |
https://epic.awi.de/id/eprint/46030/1/Martos_etal_2017_heatfluxANT_GRL.pdf Martos, Y. M. , Catalán, M. , Jordan, T. A. , Golynsky, A. , Golynsky, D. , Eagles, G. orcid:0000-0001-5325-0810 and Vaughan, D. G. (2017) Heat Flux Distribution of Antarctica Unveiled , Geophysical Research Letters, 44 . doi:10.1002/2017GL075609 <https://doi.org/10.1002/2017GL075609> , hdl:10013/epic.f9a5e9d8-284d-4d36-a579-11f4ea721081 |
op_doi |
https://doi.org/10.1002/2017GL075609 |
container_title |
Geophysical Research Letters |
container_volume |
44 |
container_issue |
22 |
container_start_page |
11,417 |
op_container_end_page |
11,426 |
_version_ |
1810488521547317248 |