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Pré-Publication, Document De Travail Année : 2021

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

Zacharie Barrou Dumont
  • Fonction : Auteur
Olivier Hagolle
  • Fonction : Auteur
Michaël Ablain
Rémi Jugier
  • Fonction : Auteur
Germain Salgues
  • Fonction : Auteur
Florence Marti
Aurore Dupuis
  • Fonction : Auteur
Marie Dumont
Samuel Morin

Résumé

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 of 94 % (proportion of correct classifications) and kappa of 0.80. More accurate (+6 % kappa) retrievals are obtained by excluding low quality pixels at the cost of a reduced coverage (−13 % data).

Dates et versions

hal-03370374 , version 1 (08-10-2021)

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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. 2021. ⟨hal-03370374⟩
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