Estimation of Sea-Ice Thickness in Ross and Weddell Seas from SSM/I Brightness Temperatures
In polar regions, ocean–atmosphere interactions are strongly influenced by sea ice and its thickness. Since satellite passive microwave observations became available in the 1970s, significant progress has been made in the study of snow depth and sea ice concentration and extent in these regions. Est...
Published in: | IEEE Transactions on Geoscience and Remote Sensing |
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Online Access: | http://hdl.handle.net/11367/30604 https://doi.org/10.1109/TGRS.2013.2279799 |
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ftuninapoliparth:oai:ricerca.uniparthenope.it:11367/30604 2024-04-21T07:51:58+00:00 Estimation of Sea-Ice Thickness in Ross and Weddell Seas from SSM/I Brightness Temperatures AULICINO, Giuseppe FUSCO, Giannetta Kern, Stefan BUDILLON, Giorgio Aulicino, Giuseppe Fusco, Giannetta Kern, Stefan Budillon, Giorgio 2014 http://hdl.handle.net/11367/30604 https://doi.org/10.1109/TGRS.2013.2279799 eng eng info:eu-repo/semantics/altIdentifier/wos/WOS:000332597100034 volume:52 issue:7 firstpage:4122 lastpage:4140 numberofpages:19 journal:IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING http://hdl.handle.net/11367/30604 doi:10.1109/TGRS.2013.2279799 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84896387834 Antarctica gradient and polarization ratios Ross Sea sea-ice thickness (SIT) snow depth Special Sensor Microwave/Imager (SSM/I),Weddell Sea info:eu-repo/semantics/article 2014 ftuninapoliparth https://doi.org/10.1109/TGRS.2013.2279799 2024-03-28T01:11:47Z In polar regions, ocean–atmosphere interactions are strongly influenced by sea ice and its thickness. Since satellite passive microwave observations became available in the 1970s, significant progress has been made in the study of snow depth and sea ice concentration and extent in these regions. Estimating sea-ice thickness (SIT), instead, turned out to be considerably more difficult. We present a new empirical algorithm to estimate SIT in the Ross and Weddell Seas from Special Sensor Microwave/Imager brightness temperatures. This algorithm combines brightness temperature polarization difference and ratio values to obtain SIT for seasonal ice up to a thickness of about 90 cm during freezing conditions. A series of filters accounts for open water, new ice, and snow on sea ice. Our SIT estimates are consistent with colocated visual ship-based SIT observations made according to the Antarctic Sea Ice Processes and Climate project, showing linear correlation values between 0.73 and 0.96 and root-mean-square-error values between 14 and 24 cm. The seasonal development of the region average SIT derived with our approach agrees with the corresponding values derived from U.S. National Ice Center ice charts. Comparison with colocated polynya distribution maps suggests that the algorithm could be optimized for its performance with regard to SIT values around 50 cm and that a closer investigation of the snow impact on the SIT retrieval is required. Article in Journal/Newspaper Antarc* Antarctic Antarctica Ross Sea Sea ice Weddell Sea Università degli Studi di Napoli "Parthenope": CINECA IRIS IEEE Transactions on Geoscience and Remote Sensing 52 7 4122 4140 |
institution |
Open Polar |
collection |
Università degli Studi di Napoli "Parthenope": CINECA IRIS |
op_collection_id |
ftuninapoliparth |
language |
English |
topic |
Antarctica gradient and polarization ratios Ross Sea sea-ice thickness (SIT) snow depth Special Sensor Microwave/Imager (SSM/I),Weddell Sea |
spellingShingle |
Antarctica gradient and polarization ratios Ross Sea sea-ice thickness (SIT) snow depth Special Sensor Microwave/Imager (SSM/I),Weddell Sea AULICINO, Giuseppe FUSCO, Giannetta Kern, Stefan BUDILLON, Giorgio Estimation of Sea-Ice Thickness in Ross and Weddell Seas from SSM/I Brightness Temperatures |
topic_facet |
Antarctica gradient and polarization ratios Ross Sea sea-ice thickness (SIT) snow depth Special Sensor Microwave/Imager (SSM/I),Weddell Sea |
description |
In polar regions, ocean–atmosphere interactions are strongly influenced by sea ice and its thickness. Since satellite passive microwave observations became available in the 1970s, significant progress has been made in the study of snow depth and sea ice concentration and extent in these regions. Estimating sea-ice thickness (SIT), instead, turned out to be considerably more difficult. We present a new empirical algorithm to estimate SIT in the Ross and Weddell Seas from Special Sensor Microwave/Imager brightness temperatures. This algorithm combines brightness temperature polarization difference and ratio values to obtain SIT for seasonal ice up to a thickness of about 90 cm during freezing conditions. A series of filters accounts for open water, new ice, and snow on sea ice. Our SIT estimates are consistent with colocated visual ship-based SIT observations made according to the Antarctic Sea Ice Processes and Climate project, showing linear correlation values between 0.73 and 0.96 and root-mean-square-error values between 14 and 24 cm. The seasonal development of the region average SIT derived with our approach agrees with the corresponding values derived from U.S. National Ice Center ice charts. Comparison with colocated polynya distribution maps suggests that the algorithm could be optimized for its performance with regard to SIT values around 50 cm and that a closer investigation of the snow impact on the SIT retrieval is required. |
author2 |
Aulicino, Giuseppe Fusco, Giannetta Kern, Stefan Budillon, Giorgio |
format |
Article in Journal/Newspaper |
author |
AULICINO, Giuseppe FUSCO, Giannetta Kern, Stefan BUDILLON, Giorgio |
author_facet |
AULICINO, Giuseppe FUSCO, Giannetta Kern, Stefan BUDILLON, Giorgio |
author_sort |
AULICINO, Giuseppe |
title |
Estimation of Sea-Ice Thickness in Ross and Weddell Seas from SSM/I Brightness Temperatures |
title_short |
Estimation of Sea-Ice Thickness in Ross and Weddell Seas from SSM/I Brightness Temperatures |
title_full |
Estimation of Sea-Ice Thickness in Ross and Weddell Seas from SSM/I Brightness Temperatures |
title_fullStr |
Estimation of Sea-Ice Thickness in Ross and Weddell Seas from SSM/I Brightness Temperatures |
title_full_unstemmed |
Estimation of Sea-Ice Thickness in Ross and Weddell Seas from SSM/I Brightness Temperatures |
title_sort |
estimation of sea-ice thickness in ross and weddell seas from ssm/i brightness temperatures |
publishDate |
2014 |
url |
http://hdl.handle.net/11367/30604 https://doi.org/10.1109/TGRS.2013.2279799 |
genre |
Antarc* Antarctic Antarctica Ross Sea Sea ice Weddell Sea |
genre_facet |
Antarc* Antarctic Antarctica Ross Sea Sea ice Weddell Sea |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000332597100034 volume:52 issue:7 firstpage:4122 lastpage:4140 numberofpages:19 journal:IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING http://hdl.handle.net/11367/30604 doi:10.1109/TGRS.2013.2279799 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84896387834 |
op_doi |
https://doi.org/10.1109/TGRS.2013.2279799 |
container_title |
IEEE Transactions on Geoscience and Remote Sensing |
container_volume |
52 |
container_issue |
7 |
container_start_page |
4122 |
op_container_end_page |
4140 |
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1796935248089448448 |