High-resolution spatio-temporal analysis of snowmelt over Antarctic Peninsula ice shelves from 2015 to 2021 using SAR images
Ice shelves play an essential role in the dynamics of the Antarctic ice sheet. The surface meltwater is important, as it can irreversibly weaken ice shelves by exerting additional hydrostatic pressure. Therefore, high-resolution snowmelt products are urgently needed to accurately analyze melting pat...
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ftdoajarticles:oai:doaj.org/article:11e7295d451a409493051720410ece52 2023-10-09T21:46:15+02:00 High-resolution spatio-temporal analysis of snowmelt over Antarctic Peninsula ice shelves from 2015 to 2021 using SAR images Qi Zhu Huadong Guo Lu Zhang Dong Liang Xuting Liu Heng Zhou Yiting Gou 2023-12-01T00:00:00Z https://doi.org/10.1080/17538947.2023.2181991 https://doaj.org/article/11e7295d451a409493051720410ece52 EN eng Taylor & Francis Group http://dx.doi.org/10.1080/17538947.2023.2181991 https://doaj.org/toc/1753-8947 https://doaj.org/toc/1753-8955 1753-8947 1753-8955 doi:10.1080/17538947.2023.2181991 https://doaj.org/article/11e7295d451a409493051720410ece52 International Journal of Digital Earth, Vol 16, Iss 1, Pp 825-846 (2023) surface snowmelt ice shelf sentinel-1 imagery antarctic peninsula high resolution Mathematical geography. Cartography GA1-1776 article 2023 ftdoajarticles https://doi.org/10.1080/17538947.2023.2181991 2023-09-24T00:35:56Z Ice shelves play an essential role in the dynamics of the Antarctic ice sheet. The surface meltwater is important, as it can irreversibly weaken ice shelves by exerting additional hydrostatic pressure. Therefore, high-resolution snowmelt products are urgently needed to accurately analyze melting patterns of ice shelves and further estimate mass loss. In this study, a new high-resolution (40 m) snowmelt dataset over all of the Antarctic Peninsula ice shelves larger than 100 km$^2$ was developed based on the modified snowmelt detection framework by using a co-orbit normalization method. The dataset provides detailed snowmelt information on each ice shelf, including the image coverage, melting area and melting ratio every 5 days. The melting patterns of three typical ice shelves (George VI, Wilkins and Larsen C Ice Shelves) and the spatio-temporal melting distribution of the Antarctic Peninsula (AP) were further analyzed. The snowmelt information indicates that both the extent and duration of snowmelt have been increasing in the Antarctic Peninsula from 2015 to 2021, and we found that the snowmelt on the Antarctic Peninsula showed a spatial pattern of significantly intense snowmelt on the western side. We believe this study will provide essential data for ice shelf investigation to support other fields of polar research. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Ice Sheet Ice Shelf Ice Shelves Directory of Open Access Journals: DOAJ Articles Antarctic Antarctic Peninsula The Antarctic Wilkins ENVELOPE(59.326,59.326,-67.248,-67.248) International Journal of Digital Earth 16 1 825 846 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
surface snowmelt ice shelf sentinel-1 imagery antarctic peninsula high resolution Mathematical geography. Cartography GA1-1776 |
spellingShingle |
surface snowmelt ice shelf sentinel-1 imagery antarctic peninsula high resolution Mathematical geography. Cartography GA1-1776 Qi Zhu Huadong Guo Lu Zhang Dong Liang Xuting Liu Heng Zhou Yiting Gou High-resolution spatio-temporal analysis of snowmelt over Antarctic Peninsula ice shelves from 2015 to 2021 using SAR images |
topic_facet |
surface snowmelt ice shelf sentinel-1 imagery antarctic peninsula high resolution Mathematical geography. Cartography GA1-1776 |
description |
Ice shelves play an essential role in the dynamics of the Antarctic ice sheet. The surface meltwater is important, as it can irreversibly weaken ice shelves by exerting additional hydrostatic pressure. Therefore, high-resolution snowmelt products are urgently needed to accurately analyze melting patterns of ice shelves and further estimate mass loss. In this study, a new high-resolution (40 m) snowmelt dataset over all of the Antarctic Peninsula ice shelves larger than 100 km$^2$ was developed based on the modified snowmelt detection framework by using a co-orbit normalization method. The dataset provides detailed snowmelt information on each ice shelf, including the image coverage, melting area and melting ratio every 5 days. The melting patterns of three typical ice shelves (George VI, Wilkins and Larsen C Ice Shelves) and the spatio-temporal melting distribution of the Antarctic Peninsula (AP) were further analyzed. The snowmelt information indicates that both the extent and duration of snowmelt have been increasing in the Antarctic Peninsula from 2015 to 2021, and we found that the snowmelt on the Antarctic Peninsula showed a spatial pattern of significantly intense snowmelt on the western side. We believe this study will provide essential data for ice shelf investigation to support other fields of polar research. |
format |
Article in Journal/Newspaper |
author |
Qi Zhu Huadong Guo Lu Zhang Dong Liang Xuting Liu Heng Zhou Yiting Gou |
author_facet |
Qi Zhu Huadong Guo Lu Zhang Dong Liang Xuting Liu Heng Zhou Yiting Gou |
author_sort |
Qi Zhu |
title |
High-resolution spatio-temporal analysis of snowmelt over Antarctic Peninsula ice shelves from 2015 to 2021 using SAR images |
title_short |
High-resolution spatio-temporal analysis of snowmelt over Antarctic Peninsula ice shelves from 2015 to 2021 using SAR images |
title_full |
High-resolution spatio-temporal analysis of snowmelt over Antarctic Peninsula ice shelves from 2015 to 2021 using SAR images |
title_fullStr |
High-resolution spatio-temporal analysis of snowmelt over Antarctic Peninsula ice shelves from 2015 to 2021 using SAR images |
title_full_unstemmed |
High-resolution spatio-temporal analysis of snowmelt over Antarctic Peninsula ice shelves from 2015 to 2021 using SAR images |
title_sort |
high-resolution spatio-temporal analysis of snowmelt over antarctic peninsula ice shelves from 2015 to 2021 using sar images |
publisher |
Taylor & Francis Group |
publishDate |
2023 |
url |
https://doi.org/10.1080/17538947.2023.2181991 https://doaj.org/article/11e7295d451a409493051720410ece52 |
long_lat |
ENVELOPE(59.326,59.326,-67.248,-67.248) |
geographic |
Antarctic Antarctic Peninsula The Antarctic Wilkins |
geographic_facet |
Antarctic Antarctic Peninsula The Antarctic Wilkins |
genre |
Antarc* Antarctic Antarctic Peninsula Ice Sheet Ice Shelf Ice Shelves |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Ice Sheet Ice Shelf Ice Shelves |
op_source |
International Journal of Digital Earth, Vol 16, Iss 1, Pp 825-846 (2023) |
op_relation |
http://dx.doi.org/10.1080/17538947.2023.2181991 https://doaj.org/toc/1753-8947 https://doaj.org/toc/1753-8955 1753-8947 1753-8955 doi:10.1080/17538947.2023.2181991 https://doaj.org/article/11e7295d451a409493051720410ece52 |
op_doi |
https://doi.org/10.1080/17538947.2023.2181991 |
container_title |
International Journal of Digital Earth |
container_volume |
16 |
container_issue |
1 |
container_start_page |
825 |
op_container_end_page |
846 |
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1779321907064078336 |