Multi-Year Elevation Changes Near the West Margin of the Greenland Ice Sheet from Satellite Radar Altimetry
Mean changes in the surface elevation near the west margin of the Greenland ice sheet are measured using Seasat altimetry and altimetry from the Geosat Exact Repeat Mission (ERM). The Seasat data extend from early July through early October 1978. The ERM data extend from winter 1986-87 through fall...
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ftdtic:ADP007265 2023-05-15T16:26:16+02:00 Multi-Year Elevation Changes Near the West Margin of the Greenland Ice Sheet from Satellite Radar Altimetry Lingle, Craig S. Brenner, Anita C. Zwally, H. J. DiMarzio, John P. ALASKA UNIV FAIRBANKS GEOPHYSICAL INST 1992-03 text/html http://www.dtic.mil/docs/citations/ADP007265 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADP007265 en eng http://www.dtic.mil/docs/citations/ADP007265 APPROVED FOR PUBLIC RELEASE DTIC AND NTIS Snow Ice and Permafrost Cartography and Aerial Photography Meteorology *ELEVATION *HEIGHT FINDING *ICE *SATELLITE PHOTOGRAPHY GREENLAND HEIGHT MEAN MEASUREMENT OCEAN SURFACE ORBITS SURFACES RADAR GREENHOUSE EFFECT ENVIRONMENTAL IMPACT *Global climate change Component Reports *Greenland ice sheet Geosat exact repeat mission Satellite radar altimetry Text 1992 ftdtic 2016-02-19T17:39:08Z Mean changes in the surface elevation near the west margin of the Greenland ice sheet are measured using Seasat altimetry and altimetry from the Geosat Exact Repeat Mission (ERM). The Seasat data extend from early July through early October 1978. The ERM data extend from winter 1986-87 through fall 1988. Both seasonal and multi-year changes are measured using altimetry referenced to GEM T2 orbits. The possible effects of orbit error are minimized by adjusting the orbits into a common ocean surface. Seasonal mean changes in the surface height are recognizable during the Geosat ERM. The multi-year measurements indicate the surface was lower by 0.4 +/- 0.4 m on average in late summer 1987 than in late summer 1978. The surface was lower by 0.2 +/- 0.5 m on average in late summer 1988 than in late summer 1978. As a control case, the computations are also carried out using altimetry referenced to orbits not adjusted into a common ocean surface. Text Greenland Ice Ice Sheet permafrost Defense Technical Information Center: DTIC Technical Reports database Greenland |
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Open Polar |
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Defense Technical Information Center: DTIC Technical Reports database |
op_collection_id |
ftdtic |
language |
English |
topic |
Snow Ice and Permafrost Cartography and Aerial Photography Meteorology *ELEVATION *HEIGHT FINDING *ICE *SATELLITE PHOTOGRAPHY GREENLAND HEIGHT MEAN MEASUREMENT OCEAN SURFACE ORBITS SURFACES RADAR GREENHOUSE EFFECT ENVIRONMENTAL IMPACT *Global climate change Component Reports *Greenland ice sheet Geosat exact repeat mission Satellite radar altimetry |
spellingShingle |
Snow Ice and Permafrost Cartography and Aerial Photography Meteorology *ELEVATION *HEIGHT FINDING *ICE *SATELLITE PHOTOGRAPHY GREENLAND HEIGHT MEAN MEASUREMENT OCEAN SURFACE ORBITS SURFACES RADAR GREENHOUSE EFFECT ENVIRONMENTAL IMPACT *Global climate change Component Reports *Greenland ice sheet Geosat exact repeat mission Satellite radar altimetry Lingle, Craig S. Brenner, Anita C. Zwally, H. J. DiMarzio, John P. Multi-Year Elevation Changes Near the West Margin of the Greenland Ice Sheet from Satellite Radar Altimetry |
topic_facet |
Snow Ice and Permafrost Cartography and Aerial Photography Meteorology *ELEVATION *HEIGHT FINDING *ICE *SATELLITE PHOTOGRAPHY GREENLAND HEIGHT MEAN MEASUREMENT OCEAN SURFACE ORBITS SURFACES RADAR GREENHOUSE EFFECT ENVIRONMENTAL IMPACT *Global climate change Component Reports *Greenland ice sheet Geosat exact repeat mission Satellite radar altimetry |
description |
Mean changes in the surface elevation near the west margin of the Greenland ice sheet are measured using Seasat altimetry and altimetry from the Geosat Exact Repeat Mission (ERM). The Seasat data extend from early July through early October 1978. The ERM data extend from winter 1986-87 through fall 1988. Both seasonal and multi-year changes are measured using altimetry referenced to GEM T2 orbits. The possible effects of orbit error are minimized by adjusting the orbits into a common ocean surface. Seasonal mean changes in the surface height are recognizable during the Geosat ERM. The multi-year measurements indicate the surface was lower by 0.4 +/- 0.4 m on average in late summer 1987 than in late summer 1978. The surface was lower by 0.2 +/- 0.5 m on average in late summer 1988 than in late summer 1978. As a control case, the computations are also carried out using altimetry referenced to orbits not adjusted into a common ocean surface. |
author2 |
ALASKA UNIV FAIRBANKS GEOPHYSICAL INST |
format |
Text |
author |
Lingle, Craig S. Brenner, Anita C. Zwally, H. J. DiMarzio, John P. |
author_facet |
Lingle, Craig S. Brenner, Anita C. Zwally, H. J. DiMarzio, John P. |
author_sort |
Lingle, Craig S. |
title |
Multi-Year Elevation Changes Near the West Margin of the Greenland Ice Sheet from Satellite Radar Altimetry |
title_short |
Multi-Year Elevation Changes Near the West Margin of the Greenland Ice Sheet from Satellite Radar Altimetry |
title_full |
Multi-Year Elevation Changes Near the West Margin of the Greenland Ice Sheet from Satellite Radar Altimetry |
title_fullStr |
Multi-Year Elevation Changes Near the West Margin of the Greenland Ice Sheet from Satellite Radar Altimetry |
title_full_unstemmed |
Multi-Year Elevation Changes Near the West Margin of the Greenland Ice Sheet from Satellite Radar Altimetry |
title_sort |
multi-year elevation changes near the west margin of the greenland ice sheet from satellite radar altimetry |
publishDate |
1992 |
url |
http://www.dtic.mil/docs/citations/ADP007265 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADP007265 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland Ice Ice Sheet permafrost |
genre_facet |
Greenland Ice Ice Sheet permafrost |
op_source |
DTIC AND NTIS |
op_relation |
http://www.dtic.mil/docs/citations/ADP007265 |
op_rights |
APPROVED FOR PUBLIC RELEASE |
_version_ |
1766015169883799552 |