Imaging permafrost active layer thickness under forest for climate model improvement. - Franck Garestier; Stéphane Guillaso; Elena A. Zakharova; Alexei V. Kouraev; Bertrand Decharme; Roman V. Desyatkin; Aleksei Desiatkin; T. Chevalier (Int. J. Appl. Earth Obs. Geoinformation, 2023)