The Spatiotemporal Variations of Active Layer Thickness in the Northern Hemisphere during 1901-2016
Hong Guo1, Song Feng1, Tingjun Zhang2 and Xiaoqing Peng3, (1)University of Arkansas, Fayetteville, AR, United States, (2)Key Laboratory of West China's Environment (DOE), College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, CHINA, Lanzhou, China, (3)LZU Lanzhou University, Key Laboratory of Western China's Environmental Systems（Ministry of Education), College of Earth and Environment Sciences, Lanzhou, China
