<p>The upper water system of the Hotan River refers to the water system composed of the Kalakashi River and the Yulongashi River and their tributaries located in the upper reaches of the Hotan River and nourishing the existence of the Hotan Oasis. Data developed based on Google Earth images and field surveys show that the main streams of the Karakashi River and Yulongkashi River are 797.21 km and 554.84 km respectively. The geographical location of the mountainous part of the upper reaches of the Hotan River is 34°50'40"N-37°11'37"N, 77°23'55"E-81°40'52"E. This part of the drainage area is 40,812.80 km² (Albers projection) and the boundary length is 1,829.46 km (Lambert projection). The elevation classification data of this part of the watershed is developed based on ASTER GDEM 30m data. Those with elevations below 1500 m are classified as Category 1; elevations above 1500 m are classified as intervals every 500 m, and a total of 12 categories are classified. The dataset includes: (1) water system data in the upper reaches of the Hotan River;(2) boundary data of the mountainous part of the upper reaches of the Hotan River; and (3) elevation classification data of the mountainous part of the upper reaches of the Hotan River. The dataset is stored in.kmz,.shp and.tif formats, and consists of 32 data files with a data volume of 34.30 MB (compressed into 3 files, 23.6 MB). </p>
Based on ASTER GDEM 30m data.
See: Gui Dongwei, Li Bozhen, Zhang Siyuan, Liu Chuang for data processing methods. Classification data set of water system, basin (mountainous area) and elevation in the upper reaches of Hotan River [J/DB/OL]. Global Change Data Warehouse e-Magazine (Chinese and English), 2022. https://doi.org/10.3974/geodb.2022.07.02.V1.
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10.3974/geodb.2022.07.02.V1