The spatial-temporal distribution of topographic shadows in the upper reaches of Heihe River Basin- A Big Earth Data Platform for Three Poles

The spatial-temporal distribution map of topographic shadows in the upper reaches of Heihe River (2018), which is calculated based on the SRTM DEM and the solar position (http://www.esrl.noaa.gov/gmd/grad/solcalc/azel.html). The spatial resolution is 100 m and the time resolution is 15 min. The datased can be used in the fields of ecological hydrology and remote sensing research. Using the observed solar radiation at several automatic weather stations in the upper reaches of Heihe River, the accuracy of the calculation results is verified. Results show that the dataset can accurately capture the temporal and spatial changes of the topographic shadow at the stations, and the time error is within 20 minutes.

File naming and required software

File name: the dataset is stored in netcdf4 format. The file name is "yyyy DDD. TXT", where yyyy represents the year and DDD represents the Julian date, such as 2018001.nc4.

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Cite as:

Zhang, Y. (2019). The spatial-temporal distribution of topographic shadows in the upper reaches of Heihe River Basin. A Big Earth Data Platform for Three Poles, (Download the reference： RIS | Bibtex )

Related Literatures:

1. Li, X., Cheng, G.D., Chen, X.Z., & Lu, L. (1999). Modification of solar radiation model over rugged terrain. Chinese Science Bulletin, 44(15), 1345-1350.( View Details | Bibtex)

2. Zhang, Y.L., Li, X., Cheng, G.D., Jin, H.J., Yang, D.W., Flerchinger, GN, Chang, X.L., Wang, X., & Liang, J. (2018). Influences of Topographic Shadows on the Thermal and Hydrological Processes in a Cold Region Mountainous Watershed in Northwest China. Journal of Advances in Modeling Earth Systems, 10, 1439-1457, doi: 10.1029/2017MS001264.( View Details | Bibtex)

Using this data, the data citation is required to be referenced and the related literatures are suggested to be cited.

Support Program

Pan-Third Pole Environment Study for a Green Silk Road-A CAS Strategic Priority A Program (No:XDA20000000)

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License： This work is licensed under an Attribution 4.0 International (CC BY 4.0)