Datu kopa Kategorijas Darbību plūsma Kategorijas Dataset collections, categories and projects GTN-P Global Terrestrial Network for Permafrost GTN-P is the primary international... Sakatīt GTN-P PAGE21 Changing Permafrost in the Arctic and its Global Effects in the 21th Century... Sakatīt PAGE21 Properties & Extent Permafrost Research Category Sakatīt Properties & Extent