Evaluating the benefit-cost ratio of groundwater abstraction for additional irrigation water on global scale

ions ( other country GW  ) were downscaled to grid level ( other cell GW  ) based on proportion of each cell water use in other sector ( MAgPIE Other WU  ) to country total water use in other sectors (( MAgPIE Other WU  )Country) as obtained from the MAgPIE model results. In the final step, downscaled grid level groundwater abstractions for agriculture and other sectors were addded to get the total groundwater abstractions ( Tot cell GW  ). Each variable mentioned in equations in Figure 11 is explained in detailed in the next section.ions ( Tot cell GW  ). Each variable mentioned in equations in Figure 11 is explained in detailed in the next section.