Dataset Groups Activity Stream Groups Dataset collections, categories and projects ESA GlobPermafrost Permafrost and frozen grounds are key elements of the terrestrial Cryosphere... View ESA GlobPermafrost Hydrology Permafrost Research Category View Hydrology Lake Ice Classification from Sentinel-1 Lake ice classifications distinguish grounded ice and floating ice in lakes... View Lake Ice Classification from Sentinel-1 Land Cover Permafrost Research Category View Land Cover PerSys The Permafrost Information System (PerSys) is conceptualized as an open... View PerSys PerSys - ColdSpot CSP “ColdSpots” (CSP) are regions with good in-situ observation infrastructure.... View PerSys - ColdSpot CSP