Intercomparisons of Antarctic sea ice types from visual ship, RADARSAT-1 SAR, Envisat ASAR, QuikSCAT, and AMSR-E satellite observations in the Bellingshausen Sea
Antarctic Sea Ice Processes and Climate (ASPeCt) visual ship-based observations were conducted in the Bellingshausen Sea during the Sea Ice Mass Balance in the Antarctic (SIMBA) cruise in austral spring 2007. A total of 59 ASPeCt observations are compared to coincident satellite active and passive m...
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ftpubman:oai:pure.mpg.de:item_2084878 2024-09-15T17:44:52+00:00 Intercomparisons of Antarctic sea ice types from visual ship, RADARSAT-1 SAR, Envisat ASAR, QuikSCAT, and AMSR-E satellite observations in the Bellingshausen Sea Ozsoy-Cicek, B. Kern, S. Ackley, S. Xie, H. Tekeli, A. 2011-05 http://hdl.handle.net/11858/00-001M-0000-0024-9F2B-1 eng eng info:eu-repo/semantics/altIdentifier/doi/10.1016/j.dsr2.2010.10.031 http://hdl.handle.net/11858/00-001M-0000-0024-9F2B-1 Deep-Sea Research Part II-Topical Studies in Oceanography info:eu-repo/semantics/article 2011 ftpubman https://doi.org/10.1016/j.dsr2.2010.10.031 2024-07-31T09:31:28Z Antarctic Sea Ice Processes and Climate (ASPeCt) visual ship-based observations were conducted in the Bellingshausen Sea during the Sea Ice Mass Balance in the Antarctic (SIMBA) cruise in austral spring 2007. A total of 59 ASPeCt observations are compared to coincident satellite active and passive microwave data. Envisat and RADARSAT-1 C-Band HH-polarization radar backscatter values (called NRCS henceforth) are derived on km-scales for six individual ice types and ice type mixtures. C-Band HH-polarized and Ku-Band VV-polarized NRCS are extracted on several 10 km-scale areas from coincident Envisat, RADARSAT-1, and QuikSCAT radar images for areas primarily covered with multiyear, deformed first-year, and undeformed young ice, as well as ice of the marginal ice zone (MIZ). The C-Band NRCS permits distinction between first-year, MIZ, and undeformed young ice. However, NRCS of the multiyear ice zone overlaps with that of the other ice zones and types. Ku-Band NRCS obtained for the same ice types permits discrimination of the first-year ice zone only. Obtained NRCS agree with those of previous studies and suggest a high degree of deformation and considerable potential for flooding for the first-year ice case. In comparison to large scale NRCS, AMSR-E snow depth values form two clearly separated clusters, one for 0.24–0.35 m depth (first-year ice zone) and one for 0.36–0.54 m depth (multiyear ice zone). However, a comparison to ASPeCt observations suggests a remarkable underestimation of the snow depth by AMSR-E in the multiyear–first-year-ice transition zone and for first-year cake ice. Nevertheless, a fusion of the coarse AMSR-E snow depth ranges for interior pack ice regions with radar imagery at large scale, appears promising for mapping the major zones (MIZ and Pack Ice) and ice types (first-year and multiyear) of Antarctic sea ice on a circumpolar basis. Article in Journal/Newspaper Antarc* Antarctic Bellingshausen Sea Sea ice Max Planck Society: MPG.PuRe Deep Sea Research Part II: Topical Studies in Oceanography 58 9-10 1092 1111 |
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Open Polar |
collection |
Max Planck Society: MPG.PuRe |
op_collection_id |
ftpubman |
language |
English |
description |
Antarctic Sea Ice Processes and Climate (ASPeCt) visual ship-based observations were conducted in the Bellingshausen Sea during the Sea Ice Mass Balance in the Antarctic (SIMBA) cruise in austral spring 2007. A total of 59 ASPeCt observations are compared to coincident satellite active and passive microwave data. Envisat and RADARSAT-1 C-Band HH-polarization radar backscatter values (called NRCS henceforth) are derived on km-scales for six individual ice types and ice type mixtures. C-Band HH-polarized and Ku-Band VV-polarized NRCS are extracted on several 10 km-scale areas from coincident Envisat, RADARSAT-1, and QuikSCAT radar images for areas primarily covered with multiyear, deformed first-year, and undeformed young ice, as well as ice of the marginal ice zone (MIZ). The C-Band NRCS permits distinction between first-year, MIZ, and undeformed young ice. However, NRCS of the multiyear ice zone overlaps with that of the other ice zones and types. Ku-Band NRCS obtained for the same ice types permits discrimination of the first-year ice zone only. Obtained NRCS agree with those of previous studies and suggest a high degree of deformation and considerable potential for flooding for the first-year ice case. In comparison to large scale NRCS, AMSR-E snow depth values form two clearly separated clusters, one for 0.24–0.35 m depth (first-year ice zone) and one for 0.36–0.54 m depth (multiyear ice zone). However, a comparison to ASPeCt observations suggests a remarkable underestimation of the snow depth by AMSR-E in the multiyear–first-year-ice transition zone and for first-year cake ice. Nevertheless, a fusion of the coarse AMSR-E snow depth ranges for interior pack ice regions with radar imagery at large scale, appears promising for mapping the major zones (MIZ and Pack Ice) and ice types (first-year and multiyear) of Antarctic sea ice on a circumpolar basis. |
format |
Article in Journal/Newspaper |
author |
Ozsoy-Cicek, B. Kern, S. Ackley, S. Xie, H. Tekeli, A. |
spellingShingle |
Ozsoy-Cicek, B. Kern, S. Ackley, S. Xie, H. Tekeli, A. Intercomparisons of Antarctic sea ice types from visual ship, RADARSAT-1 SAR, Envisat ASAR, QuikSCAT, and AMSR-E satellite observations in the Bellingshausen Sea |
author_facet |
Ozsoy-Cicek, B. Kern, S. Ackley, S. Xie, H. Tekeli, A. |
author_sort |
Ozsoy-Cicek, B. |
title |
Intercomparisons of Antarctic sea ice types from visual ship, RADARSAT-1 SAR, Envisat ASAR, QuikSCAT, and AMSR-E satellite observations in the Bellingshausen Sea |
title_short |
Intercomparisons of Antarctic sea ice types from visual ship, RADARSAT-1 SAR, Envisat ASAR, QuikSCAT, and AMSR-E satellite observations in the Bellingshausen Sea |
title_full |
Intercomparisons of Antarctic sea ice types from visual ship, RADARSAT-1 SAR, Envisat ASAR, QuikSCAT, and AMSR-E satellite observations in the Bellingshausen Sea |
title_fullStr |
Intercomparisons of Antarctic sea ice types from visual ship, RADARSAT-1 SAR, Envisat ASAR, QuikSCAT, and AMSR-E satellite observations in the Bellingshausen Sea |
title_full_unstemmed |
Intercomparisons of Antarctic sea ice types from visual ship, RADARSAT-1 SAR, Envisat ASAR, QuikSCAT, and AMSR-E satellite observations in the Bellingshausen Sea |
title_sort |
intercomparisons of antarctic sea ice types from visual ship, radarsat-1 sar, envisat asar, quikscat, and amsr-e satellite observations in the bellingshausen sea |
publishDate |
2011 |
url |
http://hdl.handle.net/11858/00-001M-0000-0024-9F2B-1 |
genre |
Antarc* Antarctic Bellingshausen Sea Sea ice |
genre_facet |
Antarc* Antarctic Bellingshausen Sea Sea ice |
op_source |
Deep-Sea Research Part II-Topical Studies in Oceanography |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.dsr2.2010.10.031 http://hdl.handle.net/11858/00-001M-0000-0024-9F2B-1 |
op_doi |
https://doi.org/10.1016/j.dsr2.2010.10.031 |
container_title |
Deep Sea Research Part II: Topical Studies in Oceanography |
container_volume |
58 |
container_issue |
9-10 |
container_start_page |
1092 |
op_container_end_page |
1111 |
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1810492541402873856 |