%0 Dataset
%T Data set of hydrological factors in Gansu Province
%J National Cryosphere Desert Data Center
%I National Cryosphere Desert Data Center(www.ncdc.ac.cn)
%U http://www.ncdc.ac.cn/portal/metadata/14d7745f-095c-4d47-8b7f-4d1f8481f92c
%W NCDC
%R 10.12072/ncdc.gseer.db4096.2023
%A Zhang yaonan
%K River network;flow direction;sink;flow length;flow rate
%X The used data source is DEM, which is downloaded from Geospatial Data Cloud (http://www.gscloud.cn/search), splicing multiple DEMs, cropping DEMs using vector boundaries of Gansu Province, and finally obtaining DEM data of Gansu Province. The hydrological analysis can be used to determine the river direction, extract the river network, classify the river network, and extract the watershed, and the dataset contains five folders (.tif): 1_No Depression DEM: Flow direction before filling depression.tif, Depression_Sink.tif, Depression_Contributing_Area.tif, Minimum elevation of Depression_Contributing_Area.tif, Maximum elevation of Depression_Contributing_Area_Outlet.tif, Depression_Depth.tif, Depression_Fill.tif (i.e., a no-depression DEM). 2_Calculation of confluence accumulation: flow direction.tif, flow accumulation.tif. 3_Flow length: flowdown.tif, flowup.tif 4_4_River network: river network threshold 30000.tif, river network vector.shp, river connection streamlink.tif, river connection streamlink vector, STRAHLER river network classification.tif, STRAHLER river network classification vector.shp, SHREVE river network classification.tif, SHREVE river network classification.shp