Seasonal dynamics of snow ablation on selected glaciers in central Spitsbergen derived from Sentinel-2 satellite images
The dynamics of seasonal snow ablation on six glaciers in central Spitsbergen (Dicksonland) were assessed by examining a set of Sentinel-2 satellite images covering the summer ablation season for the period 2016-19. All glaciers lost 80% or more of their surface snow cover during the studied ablatio...
Main Authors: | , |
---|---|
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Cambridge University Press
2021
|
Subjects: | |
Online Access: | https://hdl.handle.net/20.500.11850/506492 https://doi.org/10.3929/ethz-b-000506492 |
id |
ftethz:oai:www.research-collection.ethz.ch:20.500.11850/506492 |
---|---|
record_format |
openpolar |
spelling |
ftethz:oai:www.research-collection.ethz.ch:20.500.11850/506492 2023-05-15T16:57:29+02:00 Seasonal dynamics of snow ablation on selected glaciers in central Spitsbergen derived from Sentinel-2 satellite images Kavan, Jan Haagmans, Vincent 2021-10 application/application/pdf https://hdl.handle.net/20.500.11850/506492 https://doi.org/10.3929/ethz-b-000506492 en eng Cambridge University Press info:eu-repo/semantics/altIdentifier/doi/10.1017/jog.2021.36 info:eu-repo/semantics/altIdentifier/wos/000695957300018 http://hdl.handle.net/20.500.11850/506492 doi:10.3929/ethz-b-000506492 info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/4.0/ Creative Commons Attribution 4.0 International CC-BY Journal of Glaciology, 67 (265) Glacier ablation phenomena glacier mass balance snow wind-blown snow info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2021 ftethz https://doi.org/20.500.11850/506492 https://doi.org/10.3929/ethz-b-000506492 https://doi.org/10.1017/jog.2021.36 2022-04-25T14:33:21Z The dynamics of seasonal snow ablation on six glaciers in central Spitsbergen (Dicksonland) were assessed by examining a set of Sentinel-2 satellite images covering the summer ablation season for the period 2016-19. All glaciers lost 80% or more of their surface snow cover during the studied ablation seasons. This bolsters the recently observed trend of local glacier thinning, even at higher altitudes. Snow ablation dynamics are highly dependent on the glaciers altitudes, their position relative to the prevailing wind direction and the exposure to insolation. The accumulation areas of the studied glaciers were delimited based on the overlap of the minimum extent of snow-covered areas in the four consecutive studied summer seasons. The high temporal and spatial resolutions of available images enabled a detailed description of the seasonal snow ablation dynamics. Moreover, an estimate of the average number of days with below threshold glacier snow cover was made. This study contributes to our understanding of recent processes and might further support the modelling of glacier melt and subsequent runoff. ISSN:0022-1430 ISSN:1727-5652 Article in Journal/Newspaper Journal of Glaciology Spitsbergen ETH Zürich Research Collection |
institution |
Open Polar |
collection |
ETH Zürich Research Collection |
op_collection_id |
ftethz |
language |
English |
topic |
Glacier ablation phenomena glacier mass balance snow wind-blown snow |
spellingShingle |
Glacier ablation phenomena glacier mass balance snow wind-blown snow Kavan, Jan Haagmans, Vincent Seasonal dynamics of snow ablation on selected glaciers in central Spitsbergen derived from Sentinel-2 satellite images |
topic_facet |
Glacier ablation phenomena glacier mass balance snow wind-blown snow |
description |
The dynamics of seasonal snow ablation on six glaciers in central Spitsbergen (Dicksonland) were assessed by examining a set of Sentinel-2 satellite images covering the summer ablation season for the period 2016-19. All glaciers lost 80% or more of their surface snow cover during the studied ablation seasons. This bolsters the recently observed trend of local glacier thinning, even at higher altitudes. Snow ablation dynamics are highly dependent on the glaciers altitudes, their position relative to the prevailing wind direction and the exposure to insolation. The accumulation areas of the studied glaciers were delimited based on the overlap of the minimum extent of snow-covered areas in the four consecutive studied summer seasons. The high temporal and spatial resolutions of available images enabled a detailed description of the seasonal snow ablation dynamics. Moreover, an estimate of the average number of days with below threshold glacier snow cover was made. This study contributes to our understanding of recent processes and might further support the modelling of glacier melt and subsequent runoff. ISSN:0022-1430 ISSN:1727-5652 |
format |
Article in Journal/Newspaper |
author |
Kavan, Jan Haagmans, Vincent |
author_facet |
Kavan, Jan Haagmans, Vincent |
author_sort |
Kavan, Jan |
title |
Seasonal dynamics of snow ablation on selected glaciers in central Spitsbergen derived from Sentinel-2 satellite images |
title_short |
Seasonal dynamics of snow ablation on selected glaciers in central Spitsbergen derived from Sentinel-2 satellite images |
title_full |
Seasonal dynamics of snow ablation on selected glaciers in central Spitsbergen derived from Sentinel-2 satellite images |
title_fullStr |
Seasonal dynamics of snow ablation on selected glaciers in central Spitsbergen derived from Sentinel-2 satellite images |
title_full_unstemmed |
Seasonal dynamics of snow ablation on selected glaciers in central Spitsbergen derived from Sentinel-2 satellite images |
title_sort |
seasonal dynamics of snow ablation on selected glaciers in central spitsbergen derived from sentinel-2 satellite images |
publisher |
Cambridge University Press |
publishDate |
2021 |
url |
https://hdl.handle.net/20.500.11850/506492 https://doi.org/10.3929/ethz-b-000506492 |
genre |
Journal of Glaciology Spitsbergen |
genre_facet |
Journal of Glaciology Spitsbergen |
op_source |
Journal of Glaciology, 67 (265) |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1017/jog.2021.36 info:eu-repo/semantics/altIdentifier/wos/000695957300018 http://hdl.handle.net/20.500.11850/506492 doi:10.3929/ethz-b-000506492 |
op_rights |
info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/4.0/ Creative Commons Attribution 4.0 International |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/20.500.11850/506492 https://doi.org/10.3929/ethz-b-000506492 https://doi.org/10.1017/jog.2021.36 |
_version_ |
1766049038278328320 |