Greenland bare-ice albedo from PROMICE automatic weather station measurements and Sentinel-3 satellite observations
The Programme for Monitoring of the Greenland Ice Sheet (PROMICE) provides surface meteorological and glaciological measurements from widespread on-ice automatic weather stations since mid-2007. In this study, we use 105 PROMICE ice-ablation time series to identify the timing of seasonal bare-ice on...
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Geological Survey of Denmark and Greenland (GEUS)
2021
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ftjgeusbullet:oai:geusjournals.org:article/5284 2023-05-15T16:23:32+02:00 Greenland bare-ice albedo from PROMICE automatic weather station measurements and Sentinel-3 satellite observations Wehrlé, Adrien Box, Jason E. Niwano, Masashi Anesio, Alexandre M. Fausto, Robert S. 2021-04-19 application/pdf text/html text/xml application/epub+zip https://geusbulletin.org/index.php/geusb/article/view/5284 https://doi.org/10.34194/geusb.v47.5284 eng eng Geological Survey of Denmark and Greenland (GEUS) https://geusbulletin.org/index.php/geusb/article/view/5284/12392 https://geusbulletin.org/index.php/geusb/article/view/5284/12394 https://geusbulletin.org/index.php/geusb/article/view/5284/12395 https://geusbulletin.org/index.php/geusb/article/view/5284/12393 https://geusbulletin.org/index.php/geusb/article/view/5284/12396 https://geusbulletin.org/index.php/geusb/article/view/5284 doi:10.34194/geusb.v47.5284 Copyright (c) 2021 Adrien Wehrlé, Jason E. Box, Masashi Niwano, Alexandre M. Anesio, Robert S. Fausto https://creativecommons.org/licenses/by/4.0 CC-BY GEUS Bulletin; Vol. 47 (2021): Annual Volume 2021 2597-2154 2597-2162 Greenland ice sheet albedo ice ablation PROMICE Sentinel-3 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article. 2021 ftjgeusbullet https://doi.org/10.34194/geusb.v47.5284 2022-03-15T17:22:28Z The Programme for Monitoring of the Greenland Ice Sheet (PROMICE) provides surface meteorological and glaciological measurements from widespread on-ice automatic weather stations since mid-2007. In this study, we use 105 PROMICE ice-ablation time series to identify the timing of seasonal bare-ice onset preceded by snow cover conditions. From this collection, we find a bare-ice albedo at ice-ablation onset (here called bare-ice-onset albedo) of 0.565 ± 0.109 that has no apparent spatial dependence among 20 sites across Greenland. We then apply this snow-to-ice albedo transition value to measure the variations in daily Greenland bare-ice area in Sentinel-3 optical satellite imagery covering the extremely low and high respective melt years of 2018 and 2019. Daily Greenland bare-ice area peaked at 153 489 km² in 2019, 1.9 times larger than in 2018 (80 220 km²), equating to 9.0% (in 2019) and 4.7% (in 2018) of the ice sheet area. Article in Journal/Newspaper Greenland Ice Sheet GEUS Bulletin (Geological Survey of Denmark and Greenland) Greenland GEUS Bulletin 47 |
institution |
Open Polar |
collection |
GEUS Bulletin (Geological Survey of Denmark and Greenland) |
op_collection_id |
ftjgeusbullet |
language |
English |
topic |
Greenland ice sheet albedo ice ablation PROMICE Sentinel-3 |
spellingShingle |
Greenland ice sheet albedo ice ablation PROMICE Sentinel-3 Wehrlé, Adrien Box, Jason E. Niwano, Masashi Anesio, Alexandre M. Fausto, Robert S. Greenland bare-ice albedo from PROMICE automatic weather station measurements and Sentinel-3 satellite observations |
topic_facet |
Greenland ice sheet albedo ice ablation PROMICE Sentinel-3 |
description |
The Programme for Monitoring of the Greenland Ice Sheet (PROMICE) provides surface meteorological and glaciological measurements from widespread on-ice automatic weather stations since mid-2007. In this study, we use 105 PROMICE ice-ablation time series to identify the timing of seasonal bare-ice onset preceded by snow cover conditions. From this collection, we find a bare-ice albedo at ice-ablation onset (here called bare-ice-onset albedo) of 0.565 ± 0.109 that has no apparent spatial dependence among 20 sites across Greenland. We then apply this snow-to-ice albedo transition value to measure the variations in daily Greenland bare-ice area in Sentinel-3 optical satellite imagery covering the extremely low and high respective melt years of 2018 and 2019. Daily Greenland bare-ice area peaked at 153 489 km² in 2019, 1.9 times larger than in 2018 (80 220 km²), equating to 9.0% (in 2019) and 4.7% (in 2018) of the ice sheet area. |
format |
Article in Journal/Newspaper |
author |
Wehrlé, Adrien Box, Jason E. Niwano, Masashi Anesio, Alexandre M. Fausto, Robert S. |
author_facet |
Wehrlé, Adrien Box, Jason E. Niwano, Masashi Anesio, Alexandre M. Fausto, Robert S. |
author_sort |
Wehrlé, Adrien |
title |
Greenland bare-ice albedo from PROMICE automatic weather station measurements and Sentinel-3 satellite observations |
title_short |
Greenland bare-ice albedo from PROMICE automatic weather station measurements and Sentinel-3 satellite observations |
title_full |
Greenland bare-ice albedo from PROMICE automatic weather station measurements and Sentinel-3 satellite observations |
title_fullStr |
Greenland bare-ice albedo from PROMICE automatic weather station measurements and Sentinel-3 satellite observations |
title_full_unstemmed |
Greenland bare-ice albedo from PROMICE automatic weather station measurements and Sentinel-3 satellite observations |
title_sort |
greenland bare-ice albedo from promice automatic weather station measurements and sentinel-3 satellite observations |
publisher |
Geological Survey of Denmark and Greenland (GEUS) |
publishDate |
2021 |
url |
https://geusbulletin.org/index.php/geusb/article/view/5284 https://doi.org/10.34194/geusb.v47.5284 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland Ice Sheet |
genre_facet |
Greenland Ice Sheet |
op_source |
GEUS Bulletin; Vol. 47 (2021): Annual Volume 2021 2597-2154 2597-2162 |
op_relation |
https://geusbulletin.org/index.php/geusb/article/view/5284/12392 https://geusbulletin.org/index.php/geusb/article/view/5284/12394 https://geusbulletin.org/index.php/geusb/article/view/5284/12395 https://geusbulletin.org/index.php/geusb/article/view/5284/12393 https://geusbulletin.org/index.php/geusb/article/view/5284/12396 https://geusbulletin.org/index.php/geusb/article/view/5284 doi:10.34194/geusb.v47.5284 |
op_rights |
Copyright (c) 2021 Adrien Wehrlé, Jason E. Box, Masashi Niwano, Alexandre M. Anesio, Robert S. Fausto https://creativecommons.org/licenses/by/4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.34194/geusb.v47.5284 |
container_title |
GEUS Bulletin |
container_volume |
47 |
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1766011791314255872 |