江苏省数字高程数据产品(ASTER GDEM V2数据)

该数据集为江苏省范围内的ASTER GDEM V2数据产品。ASTER GDEM数据产品基于“先进星载热发射和反辐射计(ASTER)”数据计算生成，是目前唯一覆盖全球陆地表面的高分辨率高程影像数据。ASTER GDEM V2采用了一种先进的算法对V1版GDEM影像进行了改进，提高了数据的空间分辨率精度和高程精度。该算法重新处理了1,500,000幅影像，其中的250，000幅影像是在V1版GDEM数据发布后新获取的影像。此全球30米的数字高程数据产品可以和全球90米分辨率数字高程数据产品互相补充使用。

This dataset is the ASTER GDEM V2 data product covering Jiangsu Province. The ASTER GDEM data product is generated from data collected by the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER), and it is the only high-resolution digital elevation dataset covering the global land surface to date. ASTER GDEM V2 employs an advanced algorithm to refine the original Version 1 GDEM imagery, thereby improving both the spatial resolution accuracy and elevation accuracy of the dataset. This algorithm has reprocessed a total of 1.5 million images, 250,000 of which were newly acquired after the release of the Version 1 GDEM data. This global 30-meter resolution digital elevation model product can be used complementarily with global 90-meter resolution digital elevation model products.

搜集汇总

背景与挑战

背景概述

该数据集是江苏省的ASTER GDEM V2数字高程数据，具有高分辨率和高程精度，适用于地貌学等科学研究。数据来源于国家地球系统科学数据中心，使用需遵守相关规范。