Mean Dynamic Topography of the Arctic Ocean
ICESat and Envisat altimetry data provide measurements of the instantaneous sea surface height (SSH) across the Arctic Ocean, using lead and open water elevation within the sea ice pack. First, these data were used to derive two independent mean sea surface (MSS) models by stacking and averaging alo...
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ftnasantrs:oai:casi.ntrs.nasa.gov:20140006607 2023-05-15T14:39:27+02:00 Mean Dynamic Topography of the Arctic Ocean Yi, Donghui Laxon, Seymour W. Mcadoo, David C. Giles, Katherine Zwally, H. Jay Farrell, Sinead Louise Ridout, Andy Unclassified, Unlimited, Publicly available January 2012 application/pdf http://hdl.handle.net/2060/20140006607 unknown Document ID: 20140006607 http://hdl.handle.net/2060/20140006607 Copyright, Distribution as joint owner in the copyright CASI Oceanography GSFC-E-DAA-TN9247 Geophysical Research Letters; 39; 1; L01601 2012 ftnasantrs 2019-07-21T00:30:36Z ICESat and Envisat altimetry data provide measurements of the instantaneous sea surface height (SSH) across the Arctic Ocean, using lead and open water elevation within the sea ice pack. First, these data were used to derive two independent mean sea surface (MSS) models by stacking and averaging along-track SSH profiles gathered between 2003 and 2009. The ICESat and Envisat MSS data were combined to construct the high-resolution ICEn MSS. Second, we estimate the 5.5-year mean dynamic topography (MDT) of the Arctic Ocean by differencing the ICEn MSS with the new GOCO02S geoid model, derived from GRACE and GOCE gravity. Using these satellite-only data we map the major features of Arctic Ocean dynamical height that are consistent with in situ observations, including the topographical highs and lows of the Beaufort and Greenland Gyres, respectively. Smaller-scale MDT structures remain largely unresolved due to uncertainties in the geoid at short wavelengths. Other/Unknown Material Arctic Arctic Ocean Greenland ice pack Sea ice NASA Technical Reports Server (NTRS) Arctic Arctic Ocean Greenland |
institution |
Open Polar |
collection |
NASA Technical Reports Server (NTRS) |
op_collection_id |
ftnasantrs |
language |
unknown |
topic |
Oceanography |
spellingShingle |
Oceanography Yi, Donghui Laxon, Seymour W. Mcadoo, David C. Giles, Katherine Zwally, H. Jay Farrell, Sinead Louise Ridout, Andy Mean Dynamic Topography of the Arctic Ocean |
topic_facet |
Oceanography |
description |
ICESat and Envisat altimetry data provide measurements of the instantaneous sea surface height (SSH) across the Arctic Ocean, using lead and open water elevation within the sea ice pack. First, these data were used to derive two independent mean sea surface (MSS) models by stacking and averaging along-track SSH profiles gathered between 2003 and 2009. The ICESat and Envisat MSS data were combined to construct the high-resolution ICEn MSS. Second, we estimate the 5.5-year mean dynamic topography (MDT) of the Arctic Ocean by differencing the ICEn MSS with the new GOCO02S geoid model, derived from GRACE and GOCE gravity. Using these satellite-only data we map the major features of Arctic Ocean dynamical height that are consistent with in situ observations, including the topographical highs and lows of the Beaufort and Greenland Gyres, respectively. Smaller-scale MDT structures remain largely unresolved due to uncertainties in the geoid at short wavelengths. |
format |
Other/Unknown Material |
author |
Yi, Donghui Laxon, Seymour W. Mcadoo, David C. Giles, Katherine Zwally, H. Jay Farrell, Sinead Louise Ridout, Andy |
author_facet |
Yi, Donghui Laxon, Seymour W. Mcadoo, David C. Giles, Katherine Zwally, H. Jay Farrell, Sinead Louise Ridout, Andy |
author_sort |
Yi, Donghui |
title |
Mean Dynamic Topography of the Arctic Ocean |
title_short |
Mean Dynamic Topography of the Arctic Ocean |
title_full |
Mean Dynamic Topography of the Arctic Ocean |
title_fullStr |
Mean Dynamic Topography of the Arctic Ocean |
title_full_unstemmed |
Mean Dynamic Topography of the Arctic Ocean |
title_sort |
mean dynamic topography of the arctic ocean |
publishDate |
2012 |
url |
http://hdl.handle.net/2060/20140006607 |
op_coverage |
Unclassified, Unlimited, Publicly available |
geographic |
Arctic Arctic Ocean Greenland |
geographic_facet |
Arctic Arctic Ocean Greenland |
genre |
Arctic Arctic Ocean Greenland ice pack Sea ice |
genre_facet |
Arctic Arctic Ocean Greenland ice pack Sea ice |
op_source |
CASI |
op_relation |
Document ID: 20140006607 http://hdl.handle.net/2060/20140006607 |
op_rights |
Copyright, Distribution as joint owner in the copyright |
_version_ |
1766311399425835008 |