黑河流域生态水文综合地图集：黑河流域积雪日数图

“黑河流域生态-水文综合地图集”获黑河流域生态-水文过程集成研究-重点项目的支持，旨在面向黑河流域生态-水文过程集成研究的数据整理与服务，图集将为研究人员提供一个全面而详实的黑河流域背景介绍及基础数据集。
黑河流域积雪日数图是图集水文水资源中一幅，比例尺1:2500000，正轴等积圆锥投影，标准纬线：北纬 25 47。
数据源：该图表现整个黑河流域2001年8月1日至2011年7月31日，共10个水文年份多年平均积雪日数的分布情况。原始数据来源于美国国家雪冰数据中心（NSIDC )提供的MODIS每日积雪产品MODISA1和MYD10A1，以及由寒区旱区科学数据中心（WESTDC)提供的中国长时间序列雪深数据集。

Comprehensive Atlas of Eco-Hydrology in the Heihe River Basin was supported by the Key Project of Integrated Research on Eco-Hydrological Processes in the Heihe River Basin. This atlas is dedicated to data organization and service provision for integrated research on eco-hydrological processes in the Heihe River Basin, and will provide researchers with a comprehensive and detailed overview of the Heihe River Basin and foundational datasets.

The Snow Cover Days Map of the Heihe River Basin is one component within the hydrology and water resources section of this atlas, with a scale of 1:2500000, employing the normal aspect equal-area conic projection, with standard parallels at 25°N and 47°N.

Data Source: This map illustrates the spatial distribution of multi-year average snow cover days across the entire Heihe River Basin from August 1, 2001 to July 31, 2011, spanning a total of 10 hydrological years. The original data are sourced from the MODIS daily snow cover products MODISA1 and MYD10A1 provided by the National Snow and Ice Data Center (NSIDC) of the United States, as well as the China Long-term Series Snow Depth Dataset provided by the Cold and Arid Regions Science Data Center (WESTDC).