Articles | Volume 27, issue 13
https://doi.org/10.5194/hess-27-2463-2023
https://doi.org/10.5194/hess-27-2463-2023
Research article
 | 
06 Jul 2023
Research article |  | 06 Jul 2023

The precision of satellite-based net irrigation quantification in the Indus and Ganges basins

Søren J. Kragh, Rasmus Fensholt, Simon Stisen, and Julian Koch

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Short summary
This study investigates the precision of irrigation estimates from a global hotspot of unsustainable irrigation practice, the Indus and Ganges basins. We show that irrigation water use can be estimated with high precision by comparing satellite and rainfed hydrological model estimates of evapotranspiration. We believe that our work can support sustainable water resource management, as it addresses the uncertainty of a key component of the water balance that remains challenging to quantify.