Satellite-derived dry-snow line as an indicator of the local climate on the Antarctic Peninsula
Recent regional cooling has impacted the natural systems of the Antarctic Peninsula (AP); however, little is known concerning the changes in the high parts of the glacial systems. Dry-snow line (DSL), situated in the high parts of glaciers, is the uppermost limit of frequent or occasional surface me...
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Cambridge University Press
2022
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Online Access: | https://doi.org/10.1017/jog.2021.72 https://doaj.org/article/9e79fcec6e4c45c59c606abc5391728d |
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ftdoajarticles:oai:doaj.org/article:9e79fcec6e4c45c59c606abc5391728d 2023-05-15T14:13:30+02:00 Satellite-derived dry-snow line as an indicator of the local climate on the Antarctic Peninsula Chunxia Zhou Yong Liu Lei Zheng 2022-02-01T00:00:00Z https://doi.org/10.1017/jog.2021.72 https://doaj.org/article/9e79fcec6e4c45c59c606abc5391728d EN eng Cambridge University Press https://www.cambridge.org/core/product/identifier/S0022143021000721/type/journal_article https://doaj.org/toc/0022-1430 https://doaj.org/toc/1727-5652 doi:10.1017/jog.2021.72 0022-1430 1727-5652 https://doaj.org/article/9e79fcec6e4c45c59c606abc5391728d Journal of Glaciology, Vol 68, Pp 54-64 (2022) Antarctic Peninsula dry-snow line glacial zones SAR Environmental sciences GE1-350 Meteorology. Climatology QC851-999 article 2022 ftdoajarticles https://doi.org/10.1017/jog.2021.72 2023-03-12T01:30:57Z Recent regional cooling has impacted the natural systems of the Antarctic Peninsula (AP); however, little is known concerning the changes in the high parts of the glacial systems. Dry-snow line (DSL), situated in the high parts of glaciers, is the uppermost limit of frequent or occasional surface melt. We analyse dry-snow line altitude (DSLA) changes on the AP during 2004–2020 using C-band synthetic aperture radar time series data. We demonstrate that the DSLA in the eastern part of the AP is usually higher than that of the western part. Moreover, using simulated climatic variables from regional climate models, the lowering in altitude of DSL of glaciers in most areas is identified as a response to a decrease in snowmelt and an increase in precipitation. Furthermore, correlation analyses between simulated climatic variables and the DSLA are conducted. These results present the sensitive response of variations in DSLA to meteorological conditions, and the capability of DSLA being a proxy of polar local climate in high-altitude areas with no in situ meteorological observations. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Journal of Glaciology Directory of Open Access Journals: DOAJ Articles Antarctic Antarctic Peninsula The Antarctic Journal of Glaciology 68 267 54 64 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Antarctic Peninsula dry-snow line glacial zones SAR Environmental sciences GE1-350 Meteorology. Climatology QC851-999 |
spellingShingle |
Antarctic Peninsula dry-snow line glacial zones SAR Environmental sciences GE1-350 Meteorology. Climatology QC851-999 Chunxia Zhou Yong Liu Lei Zheng Satellite-derived dry-snow line as an indicator of the local climate on the Antarctic Peninsula |
topic_facet |
Antarctic Peninsula dry-snow line glacial zones SAR Environmental sciences GE1-350 Meteorology. Climatology QC851-999 |
description |
Recent regional cooling has impacted the natural systems of the Antarctic Peninsula (AP); however, little is known concerning the changes in the high parts of the glacial systems. Dry-snow line (DSL), situated in the high parts of glaciers, is the uppermost limit of frequent or occasional surface melt. We analyse dry-snow line altitude (DSLA) changes on the AP during 2004–2020 using C-band synthetic aperture radar time series data. We demonstrate that the DSLA in the eastern part of the AP is usually higher than that of the western part. Moreover, using simulated climatic variables from regional climate models, the lowering in altitude of DSL of glaciers in most areas is identified as a response to a decrease in snowmelt and an increase in precipitation. Furthermore, correlation analyses between simulated climatic variables and the DSLA are conducted. These results present the sensitive response of variations in DSLA to meteorological conditions, and the capability of DSLA being a proxy of polar local climate in high-altitude areas with no in situ meteorological observations. |
format |
Article in Journal/Newspaper |
author |
Chunxia Zhou Yong Liu Lei Zheng |
author_facet |
Chunxia Zhou Yong Liu Lei Zheng |
author_sort |
Chunxia Zhou |
title |
Satellite-derived dry-snow line as an indicator of the local climate on the Antarctic Peninsula |
title_short |
Satellite-derived dry-snow line as an indicator of the local climate on the Antarctic Peninsula |
title_full |
Satellite-derived dry-snow line as an indicator of the local climate on the Antarctic Peninsula |
title_fullStr |
Satellite-derived dry-snow line as an indicator of the local climate on the Antarctic Peninsula |
title_full_unstemmed |
Satellite-derived dry-snow line as an indicator of the local climate on the Antarctic Peninsula |
title_sort |
satellite-derived dry-snow line as an indicator of the local climate on the antarctic peninsula |
publisher |
Cambridge University Press |
publishDate |
2022 |
url |
https://doi.org/10.1017/jog.2021.72 https://doaj.org/article/9e79fcec6e4c45c59c606abc5391728d |
geographic |
Antarctic Antarctic Peninsula The Antarctic |
geographic_facet |
Antarctic Antarctic Peninsula The Antarctic |
genre |
Antarc* Antarctic Antarctic Peninsula Journal of Glaciology |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Journal of Glaciology |
op_source |
Journal of Glaciology, Vol 68, Pp 54-64 (2022) |
op_relation |
https://www.cambridge.org/core/product/identifier/S0022143021000721/type/journal_article https://doaj.org/toc/0022-1430 https://doaj.org/toc/1727-5652 doi:10.1017/jog.2021.72 0022-1430 1727-5652 https://doaj.org/article/9e79fcec6e4c45c59c606abc5391728d |
op_doi |
https://doi.org/10.1017/jog.2021.72 |
container_title |
Journal of Glaciology |
container_volume |
68 |
container_issue |
267 |
container_start_page |
54 |
op_container_end_page |
64 |
_version_ |
1766285969976197120 |