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 wide-spread 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 o...
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Online Access: | https://pure.au.dk/portal/da/publications/greenland-bareice-albedo-from-promice-automatic-weather-station-measurements-and-sentinel3-satellite-observations(649a1e9c-b8e6-487f-a550-73ba8654408b).html https://doi.org/10.34194/GEUSB.V47.5284 http://www.scopus.com/inward/record.url?scp=85106905516&partnerID=8YFLogxK |
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ftuniaarhuspubl:oai:pure.atira.dk:publications/649a1e9c-b8e6-487f-a550-73ba8654408b 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 https://pure.au.dk/portal/da/publications/greenland-bareice-albedo-from-promice-automatic-weather-station-measurements-and-sentinel3-satellite-observations(649a1e9c-b8e6-487f-a550-73ba8654408b).html https://doi.org/10.34194/GEUSB.V47.5284 http://www.scopus.com/inward/record.url?scp=85106905516&partnerID=8YFLogxK eng eng info:eu-repo/semantics/openAccess Wehrlé , A , Box , J E , Niwano , M , Anesio , A M & Fausto , R S 2021 , ' Greenland bare-ice albedo from PROMICE automatic weather station measurements and sentinel-3 satellite observations ' , Geological Survey of Denmark and Greenland Bulletin , vol. 47 , no. 1 , 5284 . https://doi.org/10.34194/GEUSB.V47.5284 Albedo Greenland ice sheet Ice ablation PROMICE Sentinel-3 article 2021 ftuniaarhuspubl https://doi.org/10.34194/GEUSB.V47.5284 2022-11-23T23:56:36Z The Programme for Monitoring of the Greenland Ice Sheet (PROMICE) provides surface meteorological and glaciological measurements from wide-spread 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 Geological Survey of Denmark and Greenland Bulletin Aarhus University: Research Greenland GEUS Bulletin 47 |
institution |
Open Polar |
collection |
Aarhus University: Research |
op_collection_id |
ftuniaarhuspubl |
language |
English |
topic |
Albedo Greenland ice sheet Ice ablation PROMICE Sentinel-3 |
spellingShingle |
Albedo Greenland ice sheet 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 |
Albedo Greenland ice sheet Ice ablation PROMICE Sentinel-3 |
description |
The Programme for Monitoring of the Greenland Ice Sheet (PROMICE) provides surface meteorological and glaciological measurements from wide-spread 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 |
publishDate |
2021 |
url |
https://pure.au.dk/portal/da/publications/greenland-bareice-albedo-from-promice-automatic-weather-station-measurements-and-sentinel3-satellite-observations(649a1e9c-b8e6-487f-a550-73ba8654408b).html https://doi.org/10.34194/GEUSB.V47.5284 http://www.scopus.com/inward/record.url?scp=85106905516&partnerID=8YFLogxK |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland Ice Sheet Geological Survey of Denmark and Greenland Bulletin |
genre_facet |
Greenland Ice Sheet Geological Survey of Denmark and Greenland Bulletin |
op_source |
Wehrlé , A , Box , J E , Niwano , M , Anesio , A M & Fausto , R S 2021 , ' Greenland bare-ice albedo from PROMICE automatic weather station measurements and sentinel-3 satellite observations ' , Geological Survey of Denmark and Greenland Bulletin , vol. 47 , no. 1 , 5284 . https://doi.org/10.34194/GEUSB.V47.5284 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.34194/GEUSB.V47.5284 |
container_title |
GEUS Bulletin |
container_volume |
47 |
_version_ |
1766011791849029632 |