Estimation of Arctic land-fast ice cover based on dual-polarized Sentinel-1 SAR imagery
Here a method for estimating the land-fast ice (LFI) extent from dual-polarized Sentinel-1 SAR mosaics of an Arctic study area over the Kara and Barents seas is presented. The method is based on temporal cross-correlation between adjacent daily SAR mosaics. The results are compared to the LFI of the...
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Copernicus Publications
2018
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Online Access: | https://doi.org/10.5194/tc-12-2595-2018 https://www.the-cryosphere.net/12/2595/2018/tc-12-2595-2018.pdf https://doaj.org/article/b3d92d915265445c9c956e158baeff4e |
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fttriple:oai:gotriple.eu:oai:doaj.org/article:b3d92d915265445c9c956e158baeff4e 2023-05-15T13:48:38+02:00 Estimation of Arctic land-fast ice cover based on dual-polarized Sentinel-1 SAR imagery J. Karvonen 2018-08-01 https://doi.org/10.5194/tc-12-2595-2018 https://www.the-cryosphere.net/12/2595/2018/tc-12-2595-2018.pdf https://doaj.org/article/b3d92d915265445c9c956e158baeff4e en eng Copernicus Publications doi:10.5194/tc-12-2595-2018 1994-0416 1994-0424 https://www.the-cryosphere.net/12/2595/2018/tc-12-2595-2018.pdf https://doaj.org/article/b3d92d915265445c9c956e158baeff4e undefined The Cryosphere, Vol 12, Pp 2595-2607 (2018) geo envir Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2018 fttriple https://doi.org/10.5194/tc-12-2595-2018 2023-01-22T19:34:09Z Here a method for estimating the land-fast ice (LFI) extent from dual-polarized Sentinel-1 SAR mosaics of an Arctic study area over the Kara and Barents seas is presented. The method is based on temporal cross-correlation between adjacent daily SAR mosaics. The results are compared to the LFI of the Russian Arctic and Antarctic Research Institute (AARI) ice charts. Two versions of the method were studied: in the first version (FMI-A) the overall performance was optimized, and in the second version (FMI-B) the target was a low LFI misdetection rate. FMI-A detected over 73 % of the AARI ice chart LFI, and FMI-B a little over 50 % of the AARI ice chart LFI. During the winter months the detection rates were higher than during the melt-down season for both the studied algorithm versions. An LFI time series covering the time period from October 2015 to the end of August 2017 computed using the proposed methodology is provided on the FMI ftp server. The time series will be extended twice annually. Article in Journal/Newspaper Antarc* Antarctic Arctic and Antarctic Research Institute Arctic The Cryosphere Unknown Antarctic Arctic The Cryosphere 12 8 2595 2607 |
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geo envir J. Karvonen Estimation of Arctic land-fast ice cover based on dual-polarized Sentinel-1 SAR imagery |
topic_facet |
geo envir |
description |
Here a method for estimating the land-fast ice (LFI) extent from dual-polarized Sentinel-1 SAR mosaics of an Arctic study area over the Kara and Barents seas is presented. The method is based on temporal cross-correlation between adjacent daily SAR mosaics. The results are compared to the LFI of the Russian Arctic and Antarctic Research Institute (AARI) ice charts. Two versions of the method were studied: in the first version (FMI-A) the overall performance was optimized, and in the second version (FMI-B) the target was a low LFI misdetection rate. FMI-A detected over 73 % of the AARI ice chart LFI, and FMI-B a little over 50 % of the AARI ice chart LFI. During the winter months the detection rates were higher than during the melt-down season for both the studied algorithm versions. An LFI time series covering the time period from October 2015 to the end of August 2017 computed using the proposed methodology is provided on the FMI ftp server. The time series will be extended twice annually. |
format |
Article in Journal/Newspaper |
author |
J. Karvonen |
author_facet |
J. Karvonen |
author_sort |
J. Karvonen |
title |
Estimation of Arctic land-fast ice cover based on dual-polarized Sentinel-1 SAR imagery |
title_short |
Estimation of Arctic land-fast ice cover based on dual-polarized Sentinel-1 SAR imagery |
title_full |
Estimation of Arctic land-fast ice cover based on dual-polarized Sentinel-1 SAR imagery |
title_fullStr |
Estimation of Arctic land-fast ice cover based on dual-polarized Sentinel-1 SAR imagery |
title_full_unstemmed |
Estimation of Arctic land-fast ice cover based on dual-polarized Sentinel-1 SAR imagery |
title_sort |
estimation of arctic land-fast ice cover based on dual-polarized sentinel-1 sar imagery |
publisher |
Copernicus Publications |
publishDate |
2018 |
url |
https://doi.org/10.5194/tc-12-2595-2018 https://www.the-cryosphere.net/12/2595/2018/tc-12-2595-2018.pdf https://doaj.org/article/b3d92d915265445c9c956e158baeff4e |
geographic |
Antarctic Arctic |
geographic_facet |
Antarctic Arctic |
genre |
Antarc* Antarctic Arctic and Antarctic Research Institute Arctic The Cryosphere |
genre_facet |
Antarc* Antarctic Arctic and Antarctic Research Institute Arctic The Cryosphere |
op_source |
The Cryosphere, Vol 12, Pp 2595-2607 (2018) |
op_relation |
doi:10.5194/tc-12-2595-2018 1994-0416 1994-0424 https://www.the-cryosphere.net/12/2595/2018/tc-12-2595-2018.pdf https://doaj.org/article/b3d92d915265445c9c956e158baeff4e |
op_rights |
undefined |
op_doi |
https://doi.org/10.5194/tc-12-2595-2018 |
container_title |
The Cryosphere |
container_volume |
12 |
container_issue |
8 |
container_start_page |
2595 |
op_container_end_page |
2607 |
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1766249524115800064 |