The data set of supply of agricultural water resources in Central Asian adopts the water balance method to calculate the precipitation and runoff depth on grid scale in five central Asian countries, respectively, and estimate the agricultural water resources supply in five central Asian countries. The data source is mainly the precipitation and runoff data products of NOAH model in GLDAS. Each original raster data of 0.25 ° is resampled, starting from the upper-left corner of the original grid, and extending to the adjacent right and lower grids in turn, and every four grids (0.5 °) are merged into one grid, taking the median data as the center point value corresponding to four grid of geographic coordinates. The extreme values of the grids could be eliminated. The data sets includes three time periods of 2000s (2001-2005), 2010s (2006-2010) and 2015s (2011-2015) with a spatial resolution of 0.5°*0.5°; The data of demand of agricultural water resources in Central Asia include irrigation water requirement of cotton and winter wheat in 2006, 2010 and 2016 over Central Asia. This was calculated by the equation of irrigation water requirement presented by FAO. It is expected to provide basic data support for distributed water cycle simulation, water supply and demand, development and utilization analysis in five central Asian countries.

File naming and required software

File name: precipitation, runoff and irrigation water demand are stored in GeoTIFF format, and the file name is "yyyy_sss_cccc. TIF", where yyyy represents the year, SSSS represents the monthly / annual scale, and CCCC represents the category.
Data Reading : opened in MATLAB software.

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Cite as:

Zhang, Y., Yang, P., Tian, J., Zhang, Y. (2020). Supply and demand dataset of agricultural water resources in Central Asian (2000s, 2010s, 2015s). A Big Earth Data Platform for Three Poles, DOI: 10.11888/Hydro.tpdc.270452. CSTR: 18406.11.Hydro.tpdc.270452. (Download the reference： RIS | Bibtex )

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

References literature

1.Tian, J. , Zhang, Y. Q. (2019). Detecting changes in irrigation water requirement in Central Asia under CO2 fertilization and land use changes. Journal of Hydrology, 124315. (View Details )

Support Program

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

Copyright & License

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