Shuttle Imaging Radar B (SIR-B) Weddell Sea ice observations - A comparison of SIR-B and scanning multichannel microwave radiometer ice concentrations
Ice concentrations over the Weddell Sea were studied using SIR-B data obtained during the October 1984 mission, with special attention given to the effect of ocean waves on the radar return at the ice edge. Sea ice concentrations were derived from the SIR-B data using two image processing methods: t...
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ftnasantrs:oai:casi.ntrs.nasa.gov:19870060026 2023-05-15T16:39:31+02:00 Shuttle Imaging Radar B (SIR-B) Weddell Sea ice observations - A comparison of SIR-B and scanning multichannel microwave radiometer ice concentrations Martin, Seelye Holt, Benjamin Cavalieri, Donald J. Squire, Vernon Unclassified, Unlimited, Publicly available Jun 30, 1987 http://ntrs.nasa.gov/search.jsp?R=19870060026 unknown http://ntrs.nasa.gov/search.jsp?R=19870060026 Accession ID: 87A47300 Copyright Other Sources 48 Journal of Geophysical Research; 92; 7173-717 1987 ftnasantrs 2012-02-15T17:17:04Z Ice concentrations over the Weddell Sea were studied using SIR-B data obtained during the October 1984 mission, with special attention given to the effect of ocean waves on the radar return at the ice edge. Sea ice concentrations were derived from the SIR-B data using two image processing methods: the classification scheme at JPL and the manual classification method at Scott Polar Research Institute (SPRI), England. The SIR ice concentrations were compared with coincident concentrations from the Nimbus-7 SMMR. For concentrations greater than 40 percent, which was the smallest concentration observed jointly by SIR-B and the SMMR, the mean difference between the two data sets for 12 points was 2 percent. A comparison between the JPL and the SPRI SIR-B algorithms showed that the algorithms agree to within 1 percent in the interior ice pack, but the JPL algorithm gives slightly greater concentrations at the ice edge (due to the fact that the algorithm is affected by the wind waves in these areas). Other/Unknown Material ice pack Scott Polar Research Institute Sea ice Weddell Sea NASA Technical Reports Server (NTRS) Weddell Weddell Sea |
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NASA Technical Reports Server (NTRS) |
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ftnasantrs |
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48 |
spellingShingle |
48 Martin, Seelye Holt, Benjamin Cavalieri, Donald J. Squire, Vernon Shuttle Imaging Radar B (SIR-B) Weddell Sea ice observations - A comparison of SIR-B and scanning multichannel microwave radiometer ice concentrations |
topic_facet |
48 |
description |
Ice concentrations over the Weddell Sea were studied using SIR-B data obtained during the October 1984 mission, with special attention given to the effect of ocean waves on the radar return at the ice edge. Sea ice concentrations were derived from the SIR-B data using two image processing methods: the classification scheme at JPL and the manual classification method at Scott Polar Research Institute (SPRI), England. The SIR ice concentrations were compared with coincident concentrations from the Nimbus-7 SMMR. For concentrations greater than 40 percent, which was the smallest concentration observed jointly by SIR-B and the SMMR, the mean difference between the two data sets for 12 points was 2 percent. A comparison between the JPL and the SPRI SIR-B algorithms showed that the algorithms agree to within 1 percent in the interior ice pack, but the JPL algorithm gives slightly greater concentrations at the ice edge (due to the fact that the algorithm is affected by the wind waves in these areas). |
format |
Other/Unknown Material |
author |
Martin, Seelye Holt, Benjamin Cavalieri, Donald J. Squire, Vernon |
author_facet |
Martin, Seelye Holt, Benjamin Cavalieri, Donald J. Squire, Vernon |
author_sort |
Martin, Seelye |
title |
Shuttle Imaging Radar B (SIR-B) Weddell Sea ice observations - A comparison of SIR-B and scanning multichannel microwave radiometer ice concentrations |
title_short |
Shuttle Imaging Radar B (SIR-B) Weddell Sea ice observations - A comparison of SIR-B and scanning multichannel microwave radiometer ice concentrations |
title_full |
Shuttle Imaging Radar B (SIR-B) Weddell Sea ice observations - A comparison of SIR-B and scanning multichannel microwave radiometer ice concentrations |
title_fullStr |
Shuttle Imaging Radar B (SIR-B) Weddell Sea ice observations - A comparison of SIR-B and scanning multichannel microwave radiometer ice concentrations |
title_full_unstemmed |
Shuttle Imaging Radar B (SIR-B) Weddell Sea ice observations - A comparison of SIR-B and scanning multichannel microwave radiometer ice concentrations |
title_sort |
shuttle imaging radar b (sir-b) weddell sea ice observations - a comparison of sir-b and scanning multichannel microwave radiometer ice concentrations |
publishDate |
1987 |
url |
http://ntrs.nasa.gov/search.jsp?R=19870060026 |
op_coverage |
Unclassified, Unlimited, Publicly available |
geographic |
Weddell Weddell Sea |
geographic_facet |
Weddell Weddell Sea |
genre |
ice pack Scott Polar Research Institute Sea ice Weddell Sea |
genre_facet |
ice pack Scott Polar Research Institute Sea ice Weddell Sea |
op_source |
Other Sources |
op_relation |
http://ntrs.nasa.gov/search.jsp?R=19870060026 Accession ID: 87A47300 |
op_rights |
Copyright |
_version_ |
1766029861273468928 |