CIrrMap250: Annual maps of China’s irrigated cropland from 2000 to 2020

The annual maps of China’s irrigated cropland from 2000 to 2020 were created by by integrating remotely sensed data (i.e., vegetation indices, hybrid cropland products, and paddy field maps), irrigation statistics and surveys, and an irrigation suitability map. The newly developed maps (CIrrMap250) feature a spatial resolution of 250 meters at an annual frequency from 2000 to 2020.

Data usage: All maps are presented in the GeoTIFF format, with the geographic coordinate of WGS84. Pixel size is 0.00225 × 0.00225 degree (~250 m ×250 m at Equator). The maps show the percentage of each 250 m pixel that is covered by irrigated cropland (i.e., pixel value = irrigated area / pixel area ×100).

Any questions please feel free to contact: zhanglingky@lzb.ac.cn