%0 Dataset
%T 30m active horizon data set at the source of Datong River (2000-2024)
%J National Cryosphere Desert Data Center
%I National Cryosphere Desert Data Center(www.ncdc.ac.cn)
%U http://www.ncdc.ac.cn/portal/metadata/81a7a27a-d6be-4eb5-9611-3e9c00863c87
%W NCDC
%A zhang shu ping
%A None
%A huo li jun
%A li xin yang
%A wu cheng ying
%A zhang hu cai
%A FENG Qi
%K Thickness of active layer;long time series;High spatial resolution
%X The thickness of the active layer (ALT) of frozen soil is an important indicator of its response to climate and human activities. However, due to the lack of a spatially and temporally continuous high spatial resolution active layer thickness dataset, this study used a random forest downscaling model to downscale MOD11 L2 surface temperature data and MOD09GQ NDVI, and calculated the 30 meter spatial resolution active layer thickness data of the upper reaches of the Datong River, including the Muli area, from 2000 to 2024 using Stefan's formula