三江源区30m逐年河冰分布范围数据集（1990-2023年）

河冰监测对于河流径流过程、区域水循环研究，水资源管理以及冰凌灾害防治有着重要意义。高寒山区河冰所在区域气候严寒，实地观测十分困难，遥感技术已经成为获取河冰信息的重要手段。目前公开发布的高寒山区河冰分布范围数据非常稀少，暂无类似的数据可以作对比。   本数据集...

River ice monitoring holds great significance for studies of river runoff processes, regional water cycles, water resource management, and the prevention of river ice disasters. The regions where river ice exists in high-altitude cold mountainous areas feature extremely frigid climates, rendering field observations highly difficult. Remote sensing technology has therefore become a critical means of obtaining river ice-related information. At present, publicly released data on the spatial distribution of river ice in high-altitude cold mountainous regions are extremely scarce, and no analogous datasets are available for comparative analysis. This dataset is a long time-series 30-meter resolution river ice dataset for the Three-River Source Region...

搜集汇总

背景与挑战

背景概述

该数据集涵盖三江源区1990-2023年逐年30米分辨率河冰分布范围，基于Landsat影像和GEE平台合成，采用RDRI/NDSI算法提取并经人工修正，整体精度达97.96%，为高寒地区河冰研究提供直接数据支持。