Based on AVHRR-CDR SR products, a daily cloud-free snow cover extent dataset with a spatial resolution of 5 km from 1981 to 2019 was prepared by using decision tree classification method. Each HDF4 file contains 18 data elements, including data value, data start date, longitude and latitude, etc. At the same time, to quickly preview the snow distribution, the daily file contains the snow area thumbnail, which is stored in JPG format. This data set will be continuously supplemented and improved according to the real-time satellite remote sensing data and algorithm update (up to may 2019), and will be fully open and shared.
HAO Xiaohua
“水权框架下黑河流域治理的水文-生态-经济过程耦合与演化”（91125018）项目数据汇交3-黑河流域近期治理规划(水利部,2001) 1.数据概述：黑河流域2001年开始实施的治理规划 2.数据内容：规划公开本
王忠静
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