Brief communication: Evaluation of the snow cover detection in the Copernicus High Resolution Snow & Ice Monitoring Service

The High Resolution Snow & Ice Monitoring Service was launched in 2020 to provide near-real-time, pan-European snow and ice information at 20 m resolution from Sentinel-2 observations. Here we present an evaluation of the snow detection using a database of snow depth observations from 1764 stati...

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Bibliographic Details
Published in:The Cryosphere
Main Authors: Z. Barrou Dumont, S. Gascoin, O. Hagolle, M. Ablain, R. Jugier, G. Salgues, F. Marti, A. Dupuis, M. Dumont, S. Morin
Format: Article in Journal/Newspaper
Language:English
Published: Copernicus Publications 2021
Subjects:
geo
envir
The Cryosphere
Online Access:https://doi.org/10.5194/tc-15-4975-2021
https://tc.copernicus.org/articles/15/4975/2021/tc-15-4975-2021.pdf
https://doaj.org/article/24535806872a4be6874501003646112c
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Summary:The High Resolution Snow & Ice Monitoring Service was launched in 2020 to provide near-real-time, pan-European snow and ice information at 20 m resolution from Sentinel-2 observations. Here we present an evaluation of the snow detection using a database of snow depth observations from 1764 stations across Europe over the hydrological year 2016–2017. We find a good agreement between both datasets with an accuracy (proportion of correct classifications) of 94 % and kappa of 0.81. More accurate (+6 % kappa) retrievals are obtained by excluding low-quality pixels at the cost of a reduced coverage (−13 % data).

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