%0 Dataset
%T Surface freeze-thaw dataset of China and surrounding areas from 2000 to 2023
%J National Cryosphere Desert Data Center
%I National Cryosphere Desert Data Center(www.ncdc.ac.cn)
%U http://www.ncdc.ac.cn/portal/metadata/d2cf57f0-dae6-4756-ba34-65158f95c02d
%W NCDC
%R 10.12072/ncdc.nieer.db6621.2024
%A ZHAO Guohui
%A Zhang Yaonan
%A YU Huiming
%A Xiao Yao
%K Near surface freeze-thaw
%X The near surface freeze-thaw cycle is a fundamental characteristic of thermal changes in the land surface and an important parameter for studying the distribution of frozen soil and climate change in cold regions. In recent decades, global warming has inevitably led to changes in freeze-thaw processes and patterns, posing a threat to ecological security and regional sustainable development. To support the study of freeze-thaw cycle response and feedback characteristics under the background of climate change, we prepared a surface freeze-thaw dataset for China and surrounding areas from 2000 to 2023 based on the latest ERA5 Land hourly temperature data. This dataset contains 10 indicators of freeze-thaw cycle changes, including daily freeze-thaw status and annual freeze-thaw intensity on the near surface, with spatial resolutions of 0.1 ° and 0.01 °. The regional range is between 3 ° N-54 ° N and 60 ° E-136 ° E, covering 29 countries including China, Mongolia, Pakistan, Afghanistan, Tajikistan, and Kyrgyzstan. This dataset has the characteristics of strong current situation, multiple elements, and wide scope, which can provide data support for the evolution of near surface freeze-thaw cycles, cryosphere, hydrology, ecology, environment and other research under the background of climate change.