<p>Yangguan Oasis is located in Dunhuang City and Aksai Kazakh Autonomous County, Jiuquan City, Gansu Province. The geographical location of Yangguan Oasis is 39°34′00″N-40°07′32″N, 93°58′47″E-94°21′45″E. The Yangguan Oasis consists of 15 oases with a total area of 83.18 km² (Albers). Among them, the largest oasis covers an area of 40.80 km2. The rivers that nourish the Yangguan Oasis mainly include circular trough canal, sand ditch and east ditch, and their main streams are 124.58 km, 112.62 km and 59.05 km respectively. The geographical location of the mountainous part of the Yangguan Basin is 39°15 '17 "N-39°28' 54" N, 93°50 '13 "E-94°34' 15" E. The mountainous part of the basin covers an area of 819.00 km2. Some elevations in the mountainous areas of the basin are divided into 7 categories. The data set includes: (1) oasis boundary data;(2) water system data that nourishes the oasis;(3) boundary data of the mountainous part of the basin; and (4) elevation classification data of the mountainous part of the basin. The dataset is stored in.kmz,.shp, and.tif data formats and consists of 49 data files with a data volume of 9.96 MB (compressed into 4 files, 3.82 MB). </p>
Based on 2020 Google earth images, ASTER GDEM 30m data, combined with measured data.
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10.3974/geodb.2023.07.06.V1