Abstract
Water scarcity and food security are global concerns, which require morefood production from less water. Therefore, for effective management of water resources and improved food production, identification of Crop water Productivity (CWP) is of prime importance. Current study was conducted at Center for Advanced Studies in Water, Mehran University of Engineering and Technology, Jamshoro, Pakistan during year 2020 estimates CWP of wheat during the Rabi season (winter season) in the Nawab Shah District of Sindh (located in Rorhi canal command area) using Mapping Evapotranspiration at High Resolution with internalized calibration (METRIC) - Earth Engine Flux (EEFLUX) application. Cloud corrections were applied where cloud cover was approximately 50% and missing data were interpolated. Actual evapotran spiration (ETa ) for each season (initial, development, mid and late, required for estimating CWP) were calculated from reference evapotranspiration (ETr ) by evapotranspiration factor (ETr F) which were available at the Food and Agriculture Organization (FAO) website, using geographical information system software package (ARC-GIS). Total ETa for the entire season came out to be 367.57 mm. Inshort, wheat crop productivity can be assessed by using matric EEFLUX imagery
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