Estimating Arctic Permafrost Active Layer Thickness (ALT) changes with remote sensing

Emiliana Valentini1, Roberto Salzano2, Marco Salvadore1, Eva Bartoletti1, Serena Sapio3, Margherita Righini3, Andrea Taramelli3 and Rosamaria Salvatori1, (1)Institute of Polar Sciences, National Research Council of Italy (ISP CNR), Rome, Italy, (2)Institute of Atmospheric Pollution Research, National Research Council of Italy (CNR IIA), Prato, Italy, (3)University School for Advanced Studies IUSS Pavia, Pavia, Italy