Satellite Observations of Antarctic Sea Ice Thickness and Volume
We utilize satellite laser altimetry data from ICESat combined with passive microwave measurements to analyze basin-wide changes in Antarctic sea ice thickness and volume over a 5 year period from 2003-2008. Sea ice thickness exhibits a small negative trend while area increases in the summer and fal...
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ftnasantrs:oai:casi.ntrs.nasa.gov:20120010403 2023-05-15T14:05:05+02:00 Satellite Observations of Antarctic Sea Ice Thickness and Volume Kurtz, Nathan Markus, Thorsten Unclassified, Unlimited, Publicly available [2012] application/pdf http://hdl.handle.net/2060/20120010403 unknown Document ID: 20120010403 http://hdl.handle.net/2060/20120010403 Copyright, Distribution as joint owner in the copyright CASI Meteorology and Climatology GSFC.JA.00348.2012 2012 ftnasantrs 2019-07-21T06:21:15Z We utilize satellite laser altimetry data from ICESat combined with passive microwave measurements to analyze basin-wide changes in Antarctic sea ice thickness and volume over a 5 year period from 2003-2008. Sea ice thickness exhibits a small negative trend while area increases in the summer and fall balanced losses in thickness leading to small overall volume changes. Using a five year time-series, we show that only small ice thickness changes of less than -0.03 m/yr and volume changes of -266 cu km/yr and 160 cu km/yr occurred for the spring and summer periods, respectively. The calculated thickness and volume trends are small compared to the observational time period and interannual variability which masks the determination of long-term trend or cyclical variability in the sea ice cover. These results are in stark contrast to the much greater observed losses in Arctic sea ice volume and illustrate the different hemispheric changes of the polar sea ice covers in recent years. Other/Unknown Material Antarc* Antarctic Arctic Sea ice NASA Technical Reports Server (NTRS) Arctic Antarctic |
institution |
Open Polar |
collection |
NASA Technical Reports Server (NTRS) |
op_collection_id |
ftnasantrs |
language |
unknown |
topic |
Meteorology and Climatology |
spellingShingle |
Meteorology and Climatology Kurtz, Nathan Markus, Thorsten Satellite Observations of Antarctic Sea Ice Thickness and Volume |
topic_facet |
Meteorology and Climatology |
description |
We utilize satellite laser altimetry data from ICESat combined with passive microwave measurements to analyze basin-wide changes in Antarctic sea ice thickness and volume over a 5 year period from 2003-2008. Sea ice thickness exhibits a small negative trend while area increases in the summer and fall balanced losses in thickness leading to small overall volume changes. Using a five year time-series, we show that only small ice thickness changes of less than -0.03 m/yr and volume changes of -266 cu km/yr and 160 cu km/yr occurred for the spring and summer periods, respectively. The calculated thickness and volume trends are small compared to the observational time period and interannual variability which masks the determination of long-term trend or cyclical variability in the sea ice cover. These results are in stark contrast to the much greater observed losses in Arctic sea ice volume and illustrate the different hemispheric changes of the polar sea ice covers in recent years. |
format |
Other/Unknown Material |
author |
Kurtz, Nathan Markus, Thorsten |
author_facet |
Kurtz, Nathan Markus, Thorsten |
author_sort |
Kurtz, Nathan |
title |
Satellite Observations of Antarctic Sea Ice Thickness and Volume |
title_short |
Satellite Observations of Antarctic Sea Ice Thickness and Volume |
title_full |
Satellite Observations of Antarctic Sea Ice Thickness and Volume |
title_fullStr |
Satellite Observations of Antarctic Sea Ice Thickness and Volume |
title_full_unstemmed |
Satellite Observations of Antarctic Sea Ice Thickness and Volume |
title_sort |
satellite observations of antarctic sea ice thickness and volume |
publishDate |
2012 |
url |
http://hdl.handle.net/2060/20120010403 |
op_coverage |
Unclassified, Unlimited, Publicly available |
geographic |
Arctic Antarctic |
geographic_facet |
Arctic Antarctic |
genre |
Antarc* Antarctic Arctic Sea ice |
genre_facet |
Antarc* Antarctic Arctic Sea ice |
op_source |
CASI |
op_relation |
Document ID: 20120010403 http://hdl.handle.net/2060/20120010403 |
op_rights |
Copyright, Distribution as joint owner in the copyright |
_version_ |
1766276724848328704 |