中国及周边地区地表冻融数据集（2000-2023年）

近地表冻融循环是陆地表层热力变化的基本特征，是研究寒区冻土分布和气候变化的重要参数。近几十年来，全球变暖不可避免地导致了冻融过程和格局的变化，威胁着生态环境安全和区域可持续发展。为支撑气候变化背景下冻融循环响应和反馈特征的研究，我们基于最新的ERA5-Land逐时温度数据，制备了20...

Near-surface freeze-thaw cycles are a fundamental characteristic of thermal changes in the terrestrial surface layer, and a critical parameter for studying permafrost distribution in cold regions and climate change. In recent decades, global warming has inevitably altered the freeze-thaw processes and patterns, threatening ecological and environmental security and regional sustainable development. To support research on the response and feedback characteristics of freeze-thaw cycles under climate change, we have constructed a dataset based on the latest hourly temperature data from ERA5-Land, spanning the 20...