EOF analysis of three records of sea-ice concentration spanning the last 30 years
Several continuous observational datasets of Artic sea-ice concentration are currently available that cover the period since the advent of routine satellite observations. We report on a comparison of three sea-ice concentration datasets. These are the National Ice Center charts, and two passive micr...
Published in: | Geophysical Research Letters |
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Online Access: | https://hdl.handle.net/1983/17e2bf98-6765-4386-be14-6223fdeace7b https://research-information.bris.ac.uk/en/publications/17e2bf98-6765-4386-be14-6223fdeace7b https://doi.org/10.1029/2002GL016640 http://www.agu.org/pubs/crossref/2003/2002GL016640.shtml |
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ftubristolcris:oai:research-information.bris.ac.uk:publications/17e2bf98-6765-4386-be14-6223fdeace7b 2024-02-04T10:04:24+01:00 EOF analysis of three records of sea-ice concentration spanning the last 30 years Singarayer, JS Bamber, JL 2003-03 https://hdl.handle.net/1983/17e2bf98-6765-4386-be14-6223fdeace7b https://research-information.bris.ac.uk/en/publications/17e2bf98-6765-4386-be14-6223fdeace7b https://doi.org/10.1029/2002GL016640 http://www.agu.org/pubs/crossref/2003/2002GL016640.shtml eng eng info:eu-repo/semantics/restrictedAccess Singarayer , JS & Bamber , JL 2003 , ' EOF analysis of three records of sea-ice concentration spanning the last 30 years ' , Geophysical Research Letters , vol. 30 (5, 1251) , pp. 55/1 - 55/4 . https://doi.org/10.1029/2002GL016640 article 2003 ftubristolcris https://doi.org/10.1029/2002GL016640 2024-01-11T23:33:05Z Several continuous observational datasets of Artic sea-ice concentration are currently available that cover the period since the advent of routine satellite observations. We report on a comparison of three sea-ice concentration datasets. These are the National Ice Center charts, and two passive microwave radiometer datasets derived using different approaches: the NASA team and Bootstrap algorithms. Empirical orthogonal function (EOF) analyses were employed to compare modes of variability and their consistency between the datasets. The analysis was motivated by the need for a reliable, realistic sea ice climatology for use in climate model simulations, for which both the variability and absolute values of extent and concentration are important. We found that, while there are significant discrepancies in absolute concentrations, the major modes of variability derived from all records were essentially the same. Several continuous observational datasets of Artic sea-ice concentration are currently available that cover the period since the advent of routine satellite observations. We report on a comparison of three sea-ice concentration datasets. These are the National Ice Center charts, and two passive microwave radiometer datasets derived using different approaches: the NASA team and Bootstrap algorithms. Empirical orthogonal function (EOF) analyses were employed to compare modes of variability and their consistency between the datasets. The analysis was motivated by the need for a reliable, realistic sea ice climatology for use in climate model simulations, for which both the variability and absolute values of extent and concentration are important. We found that, while there are significant discrepancies in absolute concentrations, the major modes of variability derived from all records were essentially the same. Article in Journal/Newspaper Sea ice University of Bristol: Bristol Research Geophysical Research Letters 30 5 n/a n/a |
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Open Polar |
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University of Bristol: Bristol Research |
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ftubristolcris |
language |
English |
description |
Several continuous observational datasets of Artic sea-ice concentration are currently available that cover the period since the advent of routine satellite observations. We report on a comparison of three sea-ice concentration datasets. These are the National Ice Center charts, and two passive microwave radiometer datasets derived using different approaches: the NASA team and Bootstrap algorithms. Empirical orthogonal function (EOF) analyses were employed to compare modes of variability and their consistency between the datasets. The analysis was motivated by the need for a reliable, realistic sea ice climatology for use in climate model simulations, for which both the variability and absolute values of extent and concentration are important. We found that, while there are significant discrepancies in absolute concentrations, the major modes of variability derived from all records were essentially the same. Several continuous observational datasets of Artic sea-ice concentration are currently available that cover the period since the advent of routine satellite observations. We report on a comparison of three sea-ice concentration datasets. These are the National Ice Center charts, and two passive microwave radiometer datasets derived using different approaches: the NASA team and Bootstrap algorithms. Empirical orthogonal function (EOF) analyses were employed to compare modes of variability and their consistency between the datasets. The analysis was motivated by the need for a reliable, realistic sea ice climatology for use in climate model simulations, for which both the variability and absolute values of extent and concentration are important. We found that, while there are significant discrepancies in absolute concentrations, the major modes of variability derived from all records were essentially the same. |
format |
Article in Journal/Newspaper |
author |
Singarayer, JS Bamber, JL |
spellingShingle |
Singarayer, JS Bamber, JL EOF analysis of three records of sea-ice concentration spanning the last 30 years |
author_facet |
Singarayer, JS Bamber, JL |
author_sort |
Singarayer, JS |
title |
EOF analysis of three records of sea-ice concentration spanning the last 30 years |
title_short |
EOF analysis of three records of sea-ice concentration spanning the last 30 years |
title_full |
EOF analysis of three records of sea-ice concentration spanning the last 30 years |
title_fullStr |
EOF analysis of three records of sea-ice concentration spanning the last 30 years |
title_full_unstemmed |
EOF analysis of three records of sea-ice concentration spanning the last 30 years |
title_sort |
eof analysis of three records of sea-ice concentration spanning the last 30 years |
publishDate |
2003 |
url |
https://hdl.handle.net/1983/17e2bf98-6765-4386-be14-6223fdeace7b https://research-information.bris.ac.uk/en/publications/17e2bf98-6765-4386-be14-6223fdeace7b https://doi.org/10.1029/2002GL016640 http://www.agu.org/pubs/crossref/2003/2002GL016640.shtml |
genre |
Sea ice |
genre_facet |
Sea ice |
op_source |
Singarayer , JS & Bamber , JL 2003 , ' EOF analysis of three records of sea-ice concentration spanning the last 30 years ' , Geophysical Research Letters , vol. 30 (5, 1251) , pp. 55/1 - 55/4 . https://doi.org/10.1029/2002GL016640 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1029/2002GL016640 |
container_title |
Geophysical Research Letters |
container_volume |
30 |
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5 |
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n/a |
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n/a |
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1789972853935833088 |