The maps showing estimates of irrigated areas have better accuracy than currently available ones, say Dr. Vimal Mishra (left) and Anukesh Krishnankutty Ambika.
For the first time, high-resolution maps of irrigated areas across India from 2000-2015 have been prepared using remote sensing data. The maps were validated with ground-based survey data. High-resolution irrigated water maps are essential for estimation of irrigation water demand and consumption on a spatial scale, crop productivity assessments and hydrologic modelling.
The maps were developed by a team led by Prof. Vimal Mishra from the Civil Engineering Department, Indian Institute of Technology, Gandhinagar, Gujarat. The results were published in Scientific Data, a journal from the Nature Group.
While the irrigation maps developed by the Food and Agriculture Organisation (FAO) are of low resolution, the high-resolution maps of International Water Management Institute (IWMI) are available for just one year and do not cover the entire country. “So we developed…
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