Thanks Andrew, yes that’s exactly the plan. I did regrid the JRA55 runoff to the OM2-01 grid:
Though integrating all the values (multiplied by respective grid area) doesn’t give exactly the same amount:
965702497.956681 (regridded)
965545363.8656995 (original)
Checking if there are non-zero values in land points (using land_mask) does indicate values over land tho:
Do you have any suggestion on how to avoid this?