A Sea Ice Concentration Estimation Methodology Utilizing ICESat-2 Photon-Counting Laser Altimeter in the Arctic
NASA’s Ice, Cloud and land Elevation Satellite-2 (ICESat-2) mission was launched in September 2018. The sole instrument onboard ICESat-2 is ATLAS, a highly precise laser that now provides routine, very-high-resolution, surface height measurements across the globe, including over the Arctic. To furth...
Published in: | Remote Sensing |
---|---|
Main Authors: | , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
MDPI AG
2022
|
Subjects: | |
Online Access: | https://doi.org/10.3390/rs14051130 https://doaj.org/article/6154801aeb2c47a8a82773ea60074608 |
id |
ftdoajarticles:oai:doaj.org/article:6154801aeb2c47a8a82773ea60074608 |
---|---|
record_format |
openpolar |
spelling |
ftdoajarticles:oai:doaj.org/article:6154801aeb2c47a8a82773ea60074608 2023-05-15T14:52:03+02:00 A Sea Ice Concentration Estimation Methodology Utilizing ICESat-2 Photon-Counting Laser Altimeter in the Arctic Jun Liu Huan Xie Yalei Guo Xiaohua Tong Peinan Li 2022-02-01T00:00:00Z https://doi.org/10.3390/rs14051130 https://doaj.org/article/6154801aeb2c47a8a82773ea60074608 EN eng MDPI AG https://www.mdpi.com/2072-4292/14/5/1130 https://doaj.org/toc/2072-4292 doi:10.3390/rs14051130 2072-4292 https://doaj.org/article/6154801aeb2c47a8a82773ea60074608 Remote Sensing, Vol 14, Iss 1130, p 1130 (2022) arctic ICESat-2 sea ice concentration polar oceans lidars Science Q article 2022 ftdoajarticles https://doi.org/10.3390/rs14051130 2022-12-31T15:34:13Z NASA’s Ice, Cloud and land Elevation Satellite-2 (ICESat-2) mission was launched in September 2018. The sole instrument onboard ICESat-2 is ATLAS, a highly precise laser that now provides routine, very-high-resolution, surface height measurements across the globe, including over the Arctic. To further improve the detection accuracy of the sea ice concentration (SIC), we demonstrate a new processing chain that can be used to convert the along-track sea ice freeboard products (ATL10) obtained by ICESat-2 into the SIC, with our initial efforts being focused on the Arctic. For this conversion, we primarily make use of the classification results from the type (sea ice or lead) and segment length data gathered from ATL10. The along-track SIC is the ratio of the area that is covered by sea ice segments to the area of all of the along-track segments. We generated a monthly gridded SIC product with a 25 km resolution and compared this to the NSIDC Climate Data Record (CDR) sea ice concentration. The highest correlation was determined to be 0.7690 in September at high latitudes and the lowest correlation was found to be 0.8595 in June at mid-latitudes. The regions with large standard deviations in summer and autumn are mainly distributed in the thin-ice areas at mid-latitudes. In the Laptev Sea and Kara Sea of east Siberia, the differences in the standard deviation were large; the maximum bias was −0.1566, in November, and the minimum bias was −0.0216, in June. ICESat-2 shows great potential for the accurate estimation of the SIC. Article in Journal/Newspaper Arctic Kara Sea laptev Laptev Sea Sea ice Siberia Directory of Open Access Journals: DOAJ Articles Arctic Laptev Sea Kara Sea Remote Sensing 14 5 1130 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
arctic ICESat-2 sea ice concentration polar oceans lidars Science Q |
spellingShingle |
arctic ICESat-2 sea ice concentration polar oceans lidars Science Q Jun Liu Huan Xie Yalei Guo Xiaohua Tong Peinan Li A Sea Ice Concentration Estimation Methodology Utilizing ICESat-2 Photon-Counting Laser Altimeter in the Arctic |
topic_facet |
arctic ICESat-2 sea ice concentration polar oceans lidars Science Q |
description |
NASA’s Ice, Cloud and land Elevation Satellite-2 (ICESat-2) mission was launched in September 2018. The sole instrument onboard ICESat-2 is ATLAS, a highly precise laser that now provides routine, very-high-resolution, surface height measurements across the globe, including over the Arctic. To further improve the detection accuracy of the sea ice concentration (SIC), we demonstrate a new processing chain that can be used to convert the along-track sea ice freeboard products (ATL10) obtained by ICESat-2 into the SIC, with our initial efforts being focused on the Arctic. For this conversion, we primarily make use of the classification results from the type (sea ice or lead) and segment length data gathered from ATL10. The along-track SIC is the ratio of the area that is covered by sea ice segments to the area of all of the along-track segments. We generated a monthly gridded SIC product with a 25 km resolution and compared this to the NSIDC Climate Data Record (CDR) sea ice concentration. The highest correlation was determined to be 0.7690 in September at high latitudes and the lowest correlation was found to be 0.8595 in June at mid-latitudes. The regions with large standard deviations in summer and autumn are mainly distributed in the thin-ice areas at mid-latitudes. In the Laptev Sea and Kara Sea of east Siberia, the differences in the standard deviation were large; the maximum bias was −0.1566, in November, and the minimum bias was −0.0216, in June. ICESat-2 shows great potential for the accurate estimation of the SIC. |
format |
Article in Journal/Newspaper |
author |
Jun Liu Huan Xie Yalei Guo Xiaohua Tong Peinan Li |
author_facet |
Jun Liu Huan Xie Yalei Guo Xiaohua Tong Peinan Li |
author_sort |
Jun Liu |
title |
A Sea Ice Concentration Estimation Methodology Utilizing ICESat-2 Photon-Counting Laser Altimeter in the Arctic |
title_short |
A Sea Ice Concentration Estimation Methodology Utilizing ICESat-2 Photon-Counting Laser Altimeter in the Arctic |
title_full |
A Sea Ice Concentration Estimation Methodology Utilizing ICESat-2 Photon-Counting Laser Altimeter in the Arctic |
title_fullStr |
A Sea Ice Concentration Estimation Methodology Utilizing ICESat-2 Photon-Counting Laser Altimeter in the Arctic |
title_full_unstemmed |
A Sea Ice Concentration Estimation Methodology Utilizing ICESat-2 Photon-Counting Laser Altimeter in the Arctic |
title_sort |
sea ice concentration estimation methodology utilizing icesat-2 photon-counting laser altimeter in the arctic |
publisher |
MDPI AG |
publishDate |
2022 |
url |
https://doi.org/10.3390/rs14051130 https://doaj.org/article/6154801aeb2c47a8a82773ea60074608 |
geographic |
Arctic Laptev Sea Kara Sea |
geographic_facet |
Arctic Laptev Sea Kara Sea |
genre |
Arctic Kara Sea laptev Laptev Sea Sea ice Siberia |
genre_facet |
Arctic Kara Sea laptev Laptev Sea Sea ice Siberia |
op_source |
Remote Sensing, Vol 14, Iss 1130, p 1130 (2022) |
op_relation |
https://www.mdpi.com/2072-4292/14/5/1130 https://doaj.org/toc/2072-4292 doi:10.3390/rs14051130 2072-4292 https://doaj.org/article/6154801aeb2c47a8a82773ea60074608 |
op_doi |
https://doi.org/10.3390/rs14051130 |
container_title |
Remote Sensing |
container_volume |
14 |
container_issue |
5 |
container_start_page |
1130 |
_version_ |
1766323175243644928 |