TY  - Data
T1  - The boundary of the Black River Basin study area
A1  - Wu lizong
DO  - 10.12072/ncdc.Westdc.db0013.2020
PY  - 2020
DA  - 2020-12-18
PB  - National Cryosphere Desert Data Center
AB  - 1. The basin boundary of the Heihe River Basin was obtained based on a high-precision digital elevation model (DEM) and analysed using the GIS hydrological analysis function, with reference to remote sensing images, topographic maps, ground surveys and previous research results. The surface catchment area of the Black River Basin extends over an area of approximately 255,000km2, from the middle Qilian Mountains in the south, with the Gobi Altai Mountains in Mongolia on the northern boundary, from the Mahair Mountains in the west to the Yabuli Mountains in the east. Compared to the traditional extent of the Black River Basin, the new basin adds the Badangilin Desert, the Kuanzi Lake, the northern region of the Mahair Mountains and the southern foothills of the Gobi Altai Mountains in Outer Mongolia. Note: The Nan Shi and Bei Shi rivers are rivers formed by seepage from the alluvial fan of the Shule River, and form a separate hydrological unit (the Huahai Basin hydrological systems) with the Petroleum, Baiyang and Broken Pass rivers, with the Ganhaizi as the caudal lake. This hydrological unit is more related to the Heihe River Basin than to the Shule River, both in terms of surface catchment conditions and historical hydrological changes, and should be considered part of the Heihe River Basin. Considering the current state of modern water use, the Beishi River has been artificially modified to be directly connected to the main stream of the Shule River and is an important channel for the Shule River to deliver water to Ganhaizi, which has become a de facto important tributary of the Shule River. Under the influence of a series of water conservancy projects, the Shiyou and Baiyang rivers also have a much greater surface hydraulic connection with the Shule River than they do with the Zhurai River. 2. Black River Basin Yellow Committee amended boundaryThe revised boundary of the Yellow Committee of the Heihe River Basin was obtained on the basis of the boundary of the H
DB  - NCDC
UR  - http://www.ncdc.ac.cn/portal/metadata/ad5307b4-4864-4716-a31a-0658bc40c577
ER  -