Snow- and ice-height change in Antarctica from satellite gravimetry and altimetry data
We combine the surface-elevation and surface-mass change derived from Envisat data and GRACE solutions, respectively, to estimate regional changes in air and ice content of the surface of the Antarctic Ice Sheet (AIS) between January 2003 and October 2010. This leads, upon certain assumptions, to th...
Published in: | Earth and Planetary Science Letters |
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Online Access: | https://doi.org/10.1016/j.epsl.2014.08.008 http://ecite.utas.edu.au/94451 |
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ftunivtasecite:oai:ecite.utas.edu.au:94451 2023-05-15T13:37:24+02:00 Snow- and ice-height change in Antarctica from satellite gravimetry and altimetry data Memin, A Flament, T Remy, F Llubes, M 2014 https://doi.org/10.1016/j.epsl.2014.08.008 http://ecite.utas.edu.au/94451 en eng Elsevier Science Bv http://dx.doi.org/10.1016/j.epsl.2014.08.008 Memin, A and Flament, T and Remy, F and Llubes, M, Snow- and ice-height change in Antarctica from satellite gravimetry and altimetry data, Earth and Planetary Science Letters, 404 pp. 344-353. ISSN 0012-821X (2014) [Refereed Article] http://ecite.utas.edu.au/94451 Engineering Geomatic Engineering Geodesy Refereed Article PeerReviewed 2014 ftunivtasecite https://doi.org/10.1016/j.epsl.2014.08.008 2019-12-13T21:57:07Z We combine the surface-elevation and surface-mass change derived from Envisat data and GRACE solutions, respectively, to estimate regional changes in air and ice content of the surface of the Antarctic Ice Sheet (AIS) between January 2003 and October 2010. This leads, upon certain assumptions, to the separation of the rates of recent snow-accumulation change and that of ice-mass change. We obtain that the height of ice in Thwaites and Pine Island glaciers sectors decreases (≤−15.7 cm/yr) while that in the Kamb glacier sector increases (≥5.3 cm/yr). The central part of the East AIS is mostly stable while the whole Dronning Maud Land coast is dominated by an increase in snow accumulation. The Kemp land regions show an ice-mass gain that accounts for 6774% of the observed rates of elevation change in these regions. A good agreement is obtained over 68% of the investigated area, mostly in the East AIS, between our estimated rates of snow accumulation change and the predicted rates of the monthly surface mass balance derived from a regional atmospheric climate model. Article in Journal/Newspaper Antarc* Antarctic Antarctica Dronning Maud Land Ice Sheet Kemp Land Pine Island eCite UTAS (University of Tasmania) Antarctic Dronning Maud Land Kamb Glacier ENVELOPE(162.650,162.650,-77.917,-77.917) Kemp Land ENVELOPE(57.500,57.500,-67.500,-67.500) The Antarctic Earth and Planetary Science Letters 404 344 353 |
institution |
Open Polar |
collection |
eCite UTAS (University of Tasmania) |
op_collection_id |
ftunivtasecite |
language |
English |
topic |
Engineering Geomatic Engineering Geodesy |
spellingShingle |
Engineering Geomatic Engineering Geodesy Memin, A Flament, T Remy, F Llubes, M Snow- and ice-height change in Antarctica from satellite gravimetry and altimetry data |
topic_facet |
Engineering Geomatic Engineering Geodesy |
description |
We combine the surface-elevation and surface-mass change derived from Envisat data and GRACE solutions, respectively, to estimate regional changes in air and ice content of the surface of the Antarctic Ice Sheet (AIS) between January 2003 and October 2010. This leads, upon certain assumptions, to the separation of the rates of recent snow-accumulation change and that of ice-mass change. We obtain that the height of ice in Thwaites and Pine Island glaciers sectors decreases (≤−15.7 cm/yr) while that in the Kamb glacier sector increases (≥5.3 cm/yr). The central part of the East AIS is mostly stable while the whole Dronning Maud Land coast is dominated by an increase in snow accumulation. The Kemp land regions show an ice-mass gain that accounts for 6774% of the observed rates of elevation change in these regions. A good agreement is obtained over 68% of the investigated area, mostly in the East AIS, between our estimated rates of snow accumulation change and the predicted rates of the monthly surface mass balance derived from a regional atmospheric climate model. |
format |
Article in Journal/Newspaper |
author |
Memin, A Flament, T Remy, F Llubes, M |
author_facet |
Memin, A Flament, T Remy, F Llubes, M |
author_sort |
Memin, A |
title |
Snow- and ice-height change in Antarctica from satellite gravimetry and altimetry data |
title_short |
Snow- and ice-height change in Antarctica from satellite gravimetry and altimetry data |
title_full |
Snow- and ice-height change in Antarctica from satellite gravimetry and altimetry data |
title_fullStr |
Snow- and ice-height change in Antarctica from satellite gravimetry and altimetry data |
title_full_unstemmed |
Snow- and ice-height change in Antarctica from satellite gravimetry and altimetry data |
title_sort |
snow- and ice-height change in antarctica from satellite gravimetry and altimetry data |
publisher |
Elsevier Science Bv |
publishDate |
2014 |
url |
https://doi.org/10.1016/j.epsl.2014.08.008 http://ecite.utas.edu.au/94451 |
long_lat |
ENVELOPE(162.650,162.650,-77.917,-77.917) ENVELOPE(57.500,57.500,-67.500,-67.500) |
geographic |
Antarctic Dronning Maud Land Kamb Glacier Kemp Land The Antarctic |
geographic_facet |
Antarctic Dronning Maud Land Kamb Glacier Kemp Land The Antarctic |
genre |
Antarc* Antarctic Antarctica Dronning Maud Land Ice Sheet Kemp Land Pine Island |
genre_facet |
Antarc* Antarctic Antarctica Dronning Maud Land Ice Sheet Kemp Land Pine Island |
op_relation |
http://dx.doi.org/10.1016/j.epsl.2014.08.008 Memin, A and Flament, T and Remy, F and Llubes, M, Snow- and ice-height change in Antarctica from satellite gravimetry and altimetry data, Earth and Planetary Science Letters, 404 pp. 344-353. ISSN 0012-821X (2014) [Refereed Article] http://ecite.utas.edu.au/94451 |
op_doi |
https://doi.org/10.1016/j.epsl.2014.08.008 |
container_title |
Earth and Planetary Science Letters |
container_volume |
404 |
container_start_page |
344 |
op_container_end_page |
353 |
_version_ |
1766091340959973376 |