Sea ice concentration temporal variability over the Weddell Sea and its relationship with tropical sea surface temperature
Abstract Principal Components Analysis (PCA) in S-Mode (correlation between temporal series) was performed on sea ice monthly anomalies, in order to investigate which are the main temporal patterns, where are the homogenous areas located and how are they related to the sea surface temperature (SST)....
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.558.5059 2023-05-15T16:02:34+02:00 Sea ice concentration temporal variability over the Weddell Sea and its relationship with tropical sea surface temperature S. Barreira R. Compagnucci The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.558.5059 http://pubs.usgs.gov/of/2007/1047/srp/srp029/of2007-1047srp029.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.558.5059 http://pubs.usgs.gov/of/2007/1047/srp/srp029/of2007-1047srp029.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://pubs.usgs.gov/of/2007/1047/srp/srp029/of2007-1047srp029.pdf text ftciteseerx 2016-01-08T11:53:31Z Abstract Principal Components Analysis (PCA) in S-Mode (correlation between temporal series) was performed on sea ice monthly anomalies, in order to investigate which are the main temporal patterns, where are the homogenous areas located and how are they related to the sea surface temperature (SST). This analysis provides 9 patterns (4 in the Amundsen and Bellingshausen Seas and 5 in the Weddell Sea) that represent the most important temporal features that dominated sea ice concentration anomalies (SICA) variability in the Weddell, Amundsen and Bellingshausen Seas over the 1979-2000 period. Monthly Polar Gridded Sea Ice Concentrations data set derived from satellite information generated by NASA Team algorithm and acquired from the National Snow and Ice Data Center (NSIDC) were used. Monthly means SST are provided by the National Center for Environmental Prediction reanalysis. The first temporal pattern series obtained by PCA has its homogeneous area located at the external region of the Weddell and Bellingshausen Seas and Drake Passage, mostly north of 60°S. The second region is centered in 30°W and located at the southeast of the Weddell. The third area is localized east of 30°W and north of 60°S. South of the first area, the fourth PC series has its homogenous region, between 30 ° and 60°W. The last area is centered at 0 ° W and south of 60°S. Correlation charts between the five Principal Components series and SST were performed. Positive correlations over the Tropical Pacific Ocean were found for the five PCs when SST series preceded SICA PC series. The sign of the correlation could relate the occurrence of an El Niño/Southern Oscillation (ENSO) warm (cold) event with posterior Text Drake Passage National Snow and Ice Data Center Sea ice Weddell Sea Unknown Drake Passage Pacific Weddell Weddell Sea |
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Open Polar |
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Unknown |
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ftciteseerx |
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English |
description |
Abstract Principal Components Analysis (PCA) in S-Mode (correlation between temporal series) was performed on sea ice monthly anomalies, in order to investigate which are the main temporal patterns, where are the homogenous areas located and how are they related to the sea surface temperature (SST). This analysis provides 9 patterns (4 in the Amundsen and Bellingshausen Seas and 5 in the Weddell Sea) that represent the most important temporal features that dominated sea ice concentration anomalies (SICA) variability in the Weddell, Amundsen and Bellingshausen Seas over the 1979-2000 period. Monthly Polar Gridded Sea Ice Concentrations data set derived from satellite information generated by NASA Team algorithm and acquired from the National Snow and Ice Data Center (NSIDC) were used. Monthly means SST are provided by the National Center for Environmental Prediction reanalysis. The first temporal pattern series obtained by PCA has its homogeneous area located at the external region of the Weddell and Bellingshausen Seas and Drake Passage, mostly north of 60°S. The second region is centered in 30°W and located at the southeast of the Weddell. The third area is localized east of 30°W and north of 60°S. South of the first area, the fourth PC series has its homogenous region, between 30 ° and 60°W. The last area is centered at 0 ° W and south of 60°S. Correlation charts between the five Principal Components series and SST were performed. Positive correlations over the Tropical Pacific Ocean were found for the five PCs when SST series preceded SICA PC series. The sign of the correlation could relate the occurrence of an El Niño/Southern Oscillation (ENSO) warm (cold) event with posterior |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
S. Barreira R. Compagnucci |
spellingShingle |
S. Barreira R. Compagnucci Sea ice concentration temporal variability over the Weddell Sea and its relationship with tropical sea surface temperature |
author_facet |
S. Barreira R. Compagnucci |
author_sort |
S. Barreira |
title |
Sea ice concentration temporal variability over the Weddell Sea and its relationship with tropical sea surface temperature |
title_short |
Sea ice concentration temporal variability over the Weddell Sea and its relationship with tropical sea surface temperature |
title_full |
Sea ice concentration temporal variability over the Weddell Sea and its relationship with tropical sea surface temperature |
title_fullStr |
Sea ice concentration temporal variability over the Weddell Sea and its relationship with tropical sea surface temperature |
title_full_unstemmed |
Sea ice concentration temporal variability over the Weddell Sea and its relationship with tropical sea surface temperature |
title_sort |
sea ice concentration temporal variability over the weddell sea and its relationship with tropical sea surface temperature |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.558.5059 http://pubs.usgs.gov/of/2007/1047/srp/srp029/of2007-1047srp029.pdf |
geographic |
Drake Passage Pacific Weddell Weddell Sea |
geographic_facet |
Drake Passage Pacific Weddell Weddell Sea |
genre |
Drake Passage National Snow and Ice Data Center Sea ice Weddell Sea |
genre_facet |
Drake Passage National Snow and Ice Data Center Sea ice Weddell Sea |
op_source |
http://pubs.usgs.gov/of/2007/1047/srp/srp029/of2007-1047srp029.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.558.5059 http://pubs.usgs.gov/of/2007/1047/srp/srp029/of2007-1047srp029.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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1766398234956136448 |