Inter-comparison and evaluation of sea ice type concentration algorithms
Sea ice has been monitored in terms of concentration and types with microwave satellite observations since the late 1970s. However, it remains an open question as to which sea ice type concentration (SITC) method is most appropriate for ice type distribution and hence climate monitoring. This paper...
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ftcopernicus:oai:publications.copernicus.org:tcd79765 2023-05-15T18:16:16+02:00 Inter-comparison and evaluation of sea ice type concentration algorithms Ye, Yufang Shokr, Mohammed Aaboe, Signe Aldenhoff, Wiebke Eriksson, Leif E. B. Heygster, Georg Melsheimer, Christian Girard-Ardhuin, Fanny 2019-11-19 application/pdf https://doi.org/10.5194/tc-2019-200 https://tc.copernicus.org/preprints/tc-2019-200/ eng eng doi:10.5194/tc-2019-200 https://tc.copernicus.org/preprints/tc-2019-200/ eISSN: 1994-0424 Text 2019 ftcopernicus https://doi.org/10.5194/tc-2019-200 2020-07-20T16:22:35Z Sea ice has been monitored in terms of concentration and types with microwave satellite observations since the late 1970s. However, it remains an open question as to which sea ice type concentration (SITC) method is most appropriate for ice type distribution and hence climate monitoring. This paper presents key results of inter-comparison and evaluation for eight SITC methods. The SITC methods were inter-compared with two sea ice age (SIA) and three sea ice type (SIT) products using microwave radiometer and scatterometer data from 2000 to 2015. Their performances were evaluated quantitatively with samples that are used for generating tie points, and qualitatively with the RADARSAT imagery. The methods that combined scatterometer and radiometer data have overall better performances on ice type discrimination. The best methods are ECICE-QSCAT-2 for the years 2000–2009 and ECICE-ASCAT for 2009–2015, both using scatterometer data along with radiometer data. Although the SIA and SIT products are fairly good datasets for delineating ice type distributions, the SITC methods are better on preserving details like varied concentration of different ice types and work better under specific sea ice conditions, for instance, homogeneous sea ice regions with little artifact for SIA algorithms to track. Text Sea ice Copernicus Publications: E-Journals |
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Open Polar |
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Copernicus Publications: E-Journals |
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ftcopernicus |
language |
English |
description |
Sea ice has been monitored in terms of concentration and types with microwave satellite observations since the late 1970s. However, it remains an open question as to which sea ice type concentration (SITC) method is most appropriate for ice type distribution and hence climate monitoring. This paper presents key results of inter-comparison and evaluation for eight SITC methods. The SITC methods were inter-compared with two sea ice age (SIA) and three sea ice type (SIT) products using microwave radiometer and scatterometer data from 2000 to 2015. Their performances were evaluated quantitatively with samples that are used for generating tie points, and qualitatively with the RADARSAT imagery. The methods that combined scatterometer and radiometer data have overall better performances on ice type discrimination. The best methods are ECICE-QSCAT-2 for the years 2000–2009 and ECICE-ASCAT for 2009–2015, both using scatterometer data along with radiometer data. Although the SIA and SIT products are fairly good datasets for delineating ice type distributions, the SITC methods are better on preserving details like varied concentration of different ice types and work better under specific sea ice conditions, for instance, homogeneous sea ice regions with little artifact for SIA algorithms to track. |
format |
Text |
author |
Ye, Yufang Shokr, Mohammed Aaboe, Signe Aldenhoff, Wiebke Eriksson, Leif E. B. Heygster, Georg Melsheimer, Christian Girard-Ardhuin, Fanny |
spellingShingle |
Ye, Yufang Shokr, Mohammed Aaboe, Signe Aldenhoff, Wiebke Eriksson, Leif E. B. Heygster, Georg Melsheimer, Christian Girard-Ardhuin, Fanny Inter-comparison and evaluation of sea ice type concentration algorithms |
author_facet |
Ye, Yufang Shokr, Mohammed Aaboe, Signe Aldenhoff, Wiebke Eriksson, Leif E. B. Heygster, Georg Melsheimer, Christian Girard-Ardhuin, Fanny |
author_sort |
Ye, Yufang |
title |
Inter-comparison and evaluation of sea ice type concentration algorithms |
title_short |
Inter-comparison and evaluation of sea ice type concentration algorithms |
title_full |
Inter-comparison and evaluation of sea ice type concentration algorithms |
title_fullStr |
Inter-comparison and evaluation of sea ice type concentration algorithms |
title_full_unstemmed |
Inter-comparison and evaluation of sea ice type concentration algorithms |
title_sort |
inter-comparison and evaluation of sea ice type concentration algorithms |
publishDate |
2019 |
url |
https://doi.org/10.5194/tc-2019-200 https://tc.copernicus.org/preprints/tc-2019-200/ |
genre |
Sea ice |
genre_facet |
Sea ice |
op_source |
eISSN: 1994-0424 |
op_relation |
doi:10.5194/tc-2019-200 https://tc.copernicus.org/preprints/tc-2019-200/ |
op_doi |
https://doi.org/10.5194/tc-2019-200 |
_version_ |
1766189791390466048 |