SICE implementation of the Simple Cloud Detection Algorithm (SCDA) v2.0
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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ftdatacite:10.22008/fk2/n0xwsj 2023-05-15T16:25:17+02:00 SICE implementation of the Simple Cloud Detection Algorithm (SCDA) v2.0 Wehrlé, Adrien Box, Jason 2021 https://dx.doi.org/10.22008/fk2/n0xwsj https://dataverse01.geus.dk/citation?persistentId=doi:10.22008/FK2/N0XWSJ unknown GEUS Dataverse https://dx.doi.org/10.22008/fk2/n0xwsj/n5nvwu https://dx.doi.org/10.22008/fk2/n0xwsj/tecsj7 dataset Dataset 2021 ftdatacite https://doi.org/10.22008/fk2/n0xwsj https://doi.org/10.22008/fk2/n0xwsj/n5nvwu https://doi.org/10.22008/fk2/n0xwsj/tecsj7 2021-11-05T12:55:41Z 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. Dataset Greenland Ice Sheet DataCite Metadata Store (German National Library of Science and Technology) Greenland |
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DataCite Metadata Store (German National Library of Science and Technology) |
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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 |
Dataset |
author |
Wehrlé, Adrien Box, Jason |
spellingShingle |
Wehrlé, Adrien Box, Jason SICE implementation of the Simple Cloud Detection Algorithm (SCDA) v2.0 |
author_facet |
Wehrlé, Adrien Box, Jason |
author_sort |
Wehrlé, Adrien |
title |
SICE implementation of the Simple Cloud Detection Algorithm (SCDA) v2.0 |
title_short |
SICE implementation of the Simple Cloud Detection Algorithm (SCDA) v2.0 |
title_full |
SICE implementation of the Simple Cloud Detection Algorithm (SCDA) v2.0 |
title_fullStr |
SICE implementation of the Simple Cloud Detection Algorithm (SCDA) v2.0 |
title_full_unstemmed |
SICE implementation of the Simple Cloud Detection Algorithm (SCDA) v2.0 |
title_sort |
sice implementation of the simple cloud detection algorithm (scda) v2.0 |
publisher |
GEUS Dataverse |
publishDate |
2021 |
url |
https://dx.doi.org/10.22008/fk2/n0xwsj https://dataverse01.geus.dk/citation?persistentId=doi:10.22008/FK2/N0XWSJ |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland Ice Sheet |
genre_facet |
Greenland Ice Sheet |
op_relation |
https://dx.doi.org/10.22008/fk2/n0xwsj/n5nvwu https://dx.doi.org/10.22008/fk2/n0xwsj/tecsj7 |
op_doi |
https://doi.org/10.22008/fk2/n0xwsj https://doi.org/10.22008/fk2/n0xwsj/n5nvwu https://doi.org/10.22008/fk2/n0xwsj/tecsj7 |
_version_ |
1766014013432397824 |