黄河流域12.5米分辨率地形因子（坡向变率）数据集
收藏国家地球系统科学数据中心2023-03-29 更新2024-04-21 收录
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https://www.geodata.cn/data/datadetails.html?dataguid=236921311039571&docId=6087
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资源简介：
数据集为黄河流域地形因子（坡向变率）数据，空间分辨率12.5m，数据源来自于美国国家航空航天局(NASA) 的ASF DAAC；数据通过预处理、分幅、投影、镶嵌地形指标计算四个步骤完成；通过严格的质量检查，数据完整性、逻辑一致性、位置精度、属性精度、接边精度、现势性均符合国家测绘局制定的有关技术规定和标准的要求，质量优良可靠。
This dataset refers to topographic factor data (slope aspect variability) for the Yellow River Basin, with a spatial resolution of 12.5 meters. The data is sourced from ASF DAAC under the National Aeronautics and Space Administration (NASA) of the United States. It was generated through four core processing procedures: preprocessing, sheet tiling, projection transformation, mosaic integration and topographic index calculation. After undergoing strict quality inspection, the data's completeness, logical consistency, positional accuracy, attribute accuracy, edge-matching accuracy and timeliness all comply with relevant technical regulations and standards formulated by the National Bureau of Surveying and Mapping of China, proving its excellent and reliable quality.
提供机构：
西北农林科技大学水土保持研究所
创建时间：
2021-07-09
