和田河上游水系、流域（山区）及高程分类数据集

和田河上游水系是指位于和田河上游，滋养和田绿洲存在的喀拉喀什河和玉龙喀什河及其支流组成的水系。基于Google Earth影像和实地调查研发的数据表明,喀拉喀什河和玉龙喀什河的干流长度分别为797.21 km和554.84 km。和田河上游流域山区部分的地理位置是34°50'40"N-37°11'37"N，77°23'55"E-81°40'52"E。该部分流域面积为40812.80 km²（Albers投影），边界长度为1829.46 km（Lambert投影）。该部分流域高程分类数据基于ASTER GDEM 30m数据研发,高程低于1500 m的为1类；高程1500 m以上，每500 m为间隔划分,一共划为12类。该数据集包括：（1）和田河上游水系数据；（2）和田河上游流域山区部分的边界数据；（3）和田河上游流域山区部分高程分类数据。该数据集存储为.kmz、.shp与.tif格式，由32个数据文件组成，数据量34.30 MB（压缩为3个文件，23.6 MB）。

The upstream Hotan River water system refers to the water system composed of the Karakash River, Yurungkash River and their tributaries, which are located in the upper reaches of the Hotan River and nourish the Hotan Oasis. Data developed based on Google Earth imagery and field surveys indicate that the main stream lengths of the Karakash River and Yurungkash River are 797.21 km and 554.84 km, respectively. The mountainous part of the upstream Hotan River basin is geographically located between 34°50'40"N–37°11'37"N and 77°23'55"E–81°40'52"E. This mountainous sub-basin has an area of 40812.80 km² (Albers projection) and a boundary length of 1829.46 km (Lambert projection). The elevation classification data of this mountainous sub-basin is developed based on ASTER GDEM 30m data: areas with elevation below 1500 m are classified as Category 1; areas above 1500 m are divided into 12 categories with an interval of 500 m per class. This dataset includes three parts: (1) upstream Hotan River water system data; (2) boundary data of the mountainous part of the upstream Hotan River basin; (3) elevation classification data of the mountainous part of the upstream Hotan River basin. The dataset is stored in .kmz, .shp and .tif formats, consisting of 32 individual data files with a total uncompressed size of 34.30 MB, and compressed into 3 files with a combined size of 23.6 MB.

搜集汇总

背景与挑战

背景概述

该数据集提供了和田河上游的水系、流域山区边界及高程分类信息，覆盖喀拉喀什河和玉龙喀什河区域。数据集基于ASTER GDEM 30m数据生成高程分类，将低于1500米区域归为第1类，高于1500米区域按500米间隔细分为12类，以支持地理信息系统分析。数据以.kmz、.shp和.tif格式存储，包含32个文件，总数据量34.30 MB，适用于遥感反演和测绘科学研究。