Dataset Grupper Aktivitetsflöde Grupper Dataset collections, categories and projects ESA GlobPermafrost Permafrost and frozen grounds are key elements of the terrestrial Cryosphere... Visa ESA GlobPermafrost PerSys The Permafrost Information System (PerSys) is conceptualized as an open... Visa PerSys PerSys - Permafrost Extent and Properties PEX Permafrost is defined through the thermal state of the ground which makes... Visa PerSys - Permafrost Extent and Properties PEX Properties & Extent Permafrost Research Category Visa Properties & Extent