%0 Dataset
%T Lake ice thickness dataset
%J National Cryosphere Desert Data Center
%I National Cryosphere Desert Data Center(www.ncdc.ac.cn)
%U http://www.ncdc.ac.cn/portal/metadata/a1f327cc-7e2a-4521-a623-2e1ad89b9817
%W NCDC
%R 10.5281/zenodo.4090154
%A LI Xingdong
%K Lake ice thickness;lake area snow depth;satellite altimetry;lake ice model;climate change
%X The thickness of lake ice is of great significance to the regional hydroclimatic system, lake ecosystem, and human activities on the ice surface, and is extremely sensitive to global warming response. However, due to the difficulty of on-site observation and the lack of effective remote sensing observation methods, the academic community still lacks understanding of the spatiotemporal variation patterns of lake ice thickness. Although lake ice models driven by atmospheric circulation models have been extensively developed and applied, most global assessments of lake ice thickness are based solely on simulating ideal lakes within climate forcing data grids, lacking characterization of actual lake conditions. Therefore, there is an urgent need to construct a global estimation method for lake ice thickness applicable to real lakes.This study uses satellite altimetry data to invert the ice thickness of 16 large lakes in the Northern Hemisphere (such as Lake Baikal and Lake Danu) over the past thirty years, with an inversion accuracy of approximately 0.2 meters; Subsequently, a one-dimensional lake ice model driven mainly by remote sensing data was constructed, and cross validation was completed by combining satellite elevation lake ice thickness data to establish a reliable estimation scheme for lake ice thickness in lakes with an area of over 50km ² in the Northern Hemisphere.This dataset version 1 consists of three products, including: (1) the ice thickness of 11 large lakes measured by satellite altimeters from 2002 to 2019; (2) The lake ice thickness and snow depth of 1260 lakes with an area greater than 50 square kilometers in the Northern Hemisphere simulated by a one-dimensional remote sensing lake ice model from 2003 to 2018; (3) The future lake ice thickness and lake snow depth simulated by the 2091-2099 lake ice model, and the ice growth module was modified. Version 2 consists of four files, including: (1) Lake ice thickness measured by satellite altimeters fr