Inter-comparison and evaluation of Arctic sea ice type products
Arctic sea ice type (SITY) variation is a sensitive indicator of climate change. However, systematic inter-comparison and analysis for SITY products are lacking. This study analysed eight daily SITY products from five retrieval approaches covering the winters of 1999–2019, including purely radiomete...
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Online Access: | https://doi.org/10.5194/tc-17-279-2023 https://tc.copernicus.org/articles/17/279/2023/ |
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ftcopernicus:oai:publications.copernicus.org:tc102910 2023-05-15T14:55:38+02:00 Inter-comparison and evaluation of Arctic sea ice type products Ye, Yufang Luo, Yanbing Sun, Yan Shokr, Mohammed Aaboe, Signe Girard-Ardhuin, Fanny Hui, Fengming Cheng, Xiao Chen, Zhuoqi 2023-01-20 application/pdf https://doi.org/10.5194/tc-17-279-2023 https://tc.copernicus.org/articles/17/279/2023/ eng eng doi:10.5194/tc-17-279-2023 https://tc.copernicus.org/articles/17/279/2023/ eISSN: 1994-0424 Text 2023 ftcopernicus https://doi.org/10.5194/tc-17-279-2023 2023-01-23T17:22:41Z Arctic sea ice type (SITY) variation is a sensitive indicator of climate change. However, systematic inter-comparison and analysis for SITY products are lacking. This study analysed eight daily SITY products from five retrieval approaches covering the winters of 1999–2019, including purely radiometer-based (C3S-SITY), scatterometer-based (KNMI-SITY and IFREMER-SITY) and combined ones (OSISAF-SITY and Zhang-SITY). These SITY products were inter-compared against a weekly sea ice age product (i.e. NSIDC-SIA – National Snow and Ice Data Center sea ice age) and evaluated with five synthetic aperture radar (SAR) images. The average Arctic multiyear ice (MYI) extent difference between the SITY products and NSIDC-SIA varies from <math xmlns="http://www.w3.org/1998/Math/MathML" id="M1" display="inline" overflow="scroll" dspmath="mathml"><mrow><mo>-</mo><mn mathvariant="normal">1.32</mn><mo>×</mo><msup><mn mathvariant="normal">10</mn><mn mathvariant="normal">6</mn></msup></mrow></math> <svg:svg xmlns:svg="http://www.w3.org/2000/svg" width="59pt" height="14pt" class="svg-formula" dspmath="mathimg" md5hash="2aa22a9ffdc850c2c372527cc31a192d"><svg:image xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="tc-17-279-2023-ie00001.svg" width="59pt" height="14pt" src="tc-17-279-2023-ie00001.png"/></svg:svg> to 0.49×10 6 km 2 . Among them, KNMI-SITY and Zhang-SITY in the QuikSCAT (QSCAT) period (2002–2009) agree best with NSIDC-SIA and perform the best, with the smallest bias of <math xmlns="http://www.w3.org/1998/Math/MathML" id="M4" display="inline" overflow="scroll" dspmath="mathml"><mrow><mo>-</mo><mn mathvariant="normal">0.001</mn><mo>×</mo><msup><mn mathvariant="normal">10</mn><mn mathvariant="normal">6</mn></msup></mrow></math> <svg:svg xmlns:svg="http://www.w3.org/2000/svg" width="65pt" height="14pt" ... Text Arctic Climate change National Snow and Ice Data Center Sea ice Copernicus Publications: E-Journals Arctic The Cryosphere 17 1 279 308 |
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Open Polar |
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Copernicus Publications: E-Journals |
op_collection_id |
ftcopernicus |
language |
English |
description |
Arctic sea ice type (SITY) variation is a sensitive indicator of climate change. However, systematic inter-comparison and analysis for SITY products are lacking. This study analysed eight daily SITY products from five retrieval approaches covering the winters of 1999–2019, including purely radiometer-based (C3S-SITY), scatterometer-based (KNMI-SITY and IFREMER-SITY) and combined ones (OSISAF-SITY and Zhang-SITY). These SITY products were inter-compared against a weekly sea ice age product (i.e. NSIDC-SIA – National Snow and Ice Data Center sea ice age) and evaluated with five synthetic aperture radar (SAR) images. The average Arctic multiyear ice (MYI) extent difference between the SITY products and NSIDC-SIA varies from <math xmlns="http://www.w3.org/1998/Math/MathML" id="M1" display="inline" overflow="scroll" dspmath="mathml"><mrow><mo>-</mo><mn mathvariant="normal">1.32</mn><mo>×</mo><msup><mn mathvariant="normal">10</mn><mn mathvariant="normal">6</mn></msup></mrow></math> <svg:svg xmlns:svg="http://www.w3.org/2000/svg" width="59pt" height="14pt" class="svg-formula" dspmath="mathimg" md5hash="2aa22a9ffdc850c2c372527cc31a192d"><svg:image xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="tc-17-279-2023-ie00001.svg" width="59pt" height="14pt" src="tc-17-279-2023-ie00001.png"/></svg:svg> to 0.49×10 6 km 2 . Among them, KNMI-SITY and Zhang-SITY in the QuikSCAT (QSCAT) period (2002–2009) agree best with NSIDC-SIA and perform the best, with the smallest bias of <math xmlns="http://www.w3.org/1998/Math/MathML" id="M4" display="inline" overflow="scroll" dspmath="mathml"><mrow><mo>-</mo><mn mathvariant="normal">0.001</mn><mo>×</mo><msup><mn mathvariant="normal">10</mn><mn mathvariant="normal">6</mn></msup></mrow></math> <svg:svg xmlns:svg="http://www.w3.org/2000/svg" width="65pt" height="14pt" ... |
format |
Text |
author |
Ye, Yufang Luo, Yanbing Sun, Yan Shokr, Mohammed Aaboe, Signe Girard-Ardhuin, Fanny Hui, Fengming Cheng, Xiao Chen, Zhuoqi |
spellingShingle |
Ye, Yufang Luo, Yanbing Sun, Yan Shokr, Mohammed Aaboe, Signe Girard-Ardhuin, Fanny Hui, Fengming Cheng, Xiao Chen, Zhuoqi Inter-comparison and evaluation of Arctic sea ice type products |
author_facet |
Ye, Yufang Luo, Yanbing Sun, Yan Shokr, Mohammed Aaboe, Signe Girard-Ardhuin, Fanny Hui, Fengming Cheng, Xiao Chen, Zhuoqi |
author_sort |
Ye, Yufang |
title |
Inter-comparison and evaluation of Arctic sea ice type products |
title_short |
Inter-comparison and evaluation of Arctic sea ice type products |
title_full |
Inter-comparison and evaluation of Arctic sea ice type products |
title_fullStr |
Inter-comparison and evaluation of Arctic sea ice type products |
title_full_unstemmed |
Inter-comparison and evaluation of Arctic sea ice type products |
title_sort |
inter-comparison and evaluation of arctic sea ice type products |
publishDate |
2023 |
url |
https://doi.org/10.5194/tc-17-279-2023 https://tc.copernicus.org/articles/17/279/2023/ |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Climate change National Snow and Ice Data Center Sea ice |
genre_facet |
Arctic Climate change National Snow and Ice Data Center Sea ice |
op_source |
eISSN: 1994-0424 |
op_relation |
doi:10.5194/tc-17-279-2023 https://tc.copernicus.org/articles/17/279/2023/ |
op_doi |
https://doi.org/10.5194/tc-17-279-2023 |
container_title |
The Cryosphere |
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17 |
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1 |
container_start_page |
279 |
op_container_end_page |
308 |
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1766327653946621952 |