The DEM elevation model data set of 1km in heihe river basin generates DEM grid data based on China 1:250,000 digital contour line and elevation point data interpolation released by national basic geographic information center (http://ngcc.sbsm.gov.cn). The data includes Albers projection and longitude and latitude coordinates.A large amount of surface morphology information can be extracted from DEM, including the slope, slope direction and the relationship among cells of the watershed grid, which is an important source data for watershed research.
File name: data is stored in GRID format, file name "heihe_1km_dem".</p><p>Data reading: Arcgis, Qgis and other remote sensing software can be used to open and read.
Using this data, the data citation is required to be referenced and the related literatures are suggested to be cited.
1.LI Xin, WU Lizong, MA Mingguo, GE Yingchun, RAN Youhua, WANG Liangxu, NAN Zhuotong （ Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, China） (View Details )
2.Li Xin, Cheng Guodong, Wu Lizong. Digital Heihe River Basin. 1 ： An Information Infrastructure for the Watershed Science. Advances in Earth Science, 2010, 25(3): 297-305. (View Details )
3.Li, Z. , Xu, Z. , & Li, Z. . (2011). Performance of wasmod and swat on hydrological simulation in yingluoxia watershed in northwest of china. Hydrological Processes, 25(13), 2001-2008. (View Details )
4.Li X, Nan ZT, Cheng GD, Ding YJ, Wu LZ, Wang LX, Wang J, Ran YH, Li HX, Pan XD, Zhu ZM. (2011). Toward an improved data stewardship and service for environmental and ecological science data in west China. International Journal of Digital Earth, 4(4): 347-359. DOI: 10.1080/17538947.2011.558123. (View Details |Download)
5.Li, Z. , Shao, Q. , Xu, Z. , & Cai, X. . (2010). Analysis of parameter uncertainty in semi-distributed hydrological models using bootstrap method: a case study of swat model applied to yingluoxia watershed in northwest china. Journal of Hydrology (Amsterdam), 385(1-4), 76-83. (View Details )
6.Gao Y, Chen F, Barlage M, Liu W, Cheng G, Li X, Yu Y, Ran Y, Li H, Peng H, Ma M. (2008). Enhancement of land surface information and its impact on atmospheric modeling in the heihe river basin, northwest china. Journal of Geophysical Research: Atmospheres, 113(D20). (View Details )
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Resource Provider： National Basic Geographic Information Center