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

Abstract : 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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https://hal-insu.archives-ouvertes.fr/insu-03668278
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Submitted on : Monday, May 16, 2022 - 12:02:51 PM
Last modification on : Tuesday, May 17, 2022 - 3:38:55 AM

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Zacharie Barrou Dumont, Simon Gascoin, Olivier Hagolle, Michaël Ablain, Rémi Jugier, et al.. Brief communication: Evaluation of the snow cover detection in the Copernicus High Resolution Snow & Ice Monitoring Service. The Cryosphere, 2021, 15, pp.4975-4980. ⟨10.5194/tc-15-4975-2021⟩. ⟨insu-03668278⟩

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