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Folders: ROOT > ScienceBase Catalog > USGS Data Release Products ( Show all descendants )

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The data are a long-term (1980-present), daily reanalysis of reference evapotranspiration, covering the globe at a spatial resolution of 0.625° Longitude x 0.5° Latitude. Reference evapotranspiration is a measure of evaporative demand, or the "thirst of the atmosphere", basically how much moisture from the surface could evaporate into overpassing air, assuming (i) that enough water is available to evaporate and (ii) the surface is covered with a specific reference crop that completely shades the ground (some other conditions also apply). For this dataset, reference evapotranspiration is derived from the daily implementation of the Penman-Monteith reference evapotranspiration equation (Monteith, 1965) as codified...
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The Middle East and North Africa (MENA) region is the most water-scarce region with only two percent of the global average annual rainfall, hence underground aquifers are the major source of water. The need to improve water productivity and increase aquifer storage and recovery (ASR) is driving the efforts for this acceleration of aquifer storage and recovery project. The objective was to model runoff in the study area using multi-source satellite data and identify regions of runoff retention and recharge. Daily runoff is simulated using a saturation excess principle with the VegET model (Senay 2008). It is a spatially explicit (500m grid cell), one-dimensional root-zone water balance model that is driven by precipitation,...


    map background search result map search result map Modeling accumulated surface runoff and water availability for aquifer storage and recovery in the MENA region from 1984-2015 Global reference evapotranspiration for food-security monitoring (ver. 2.1, April 2024) Modeling accumulated surface runoff and water availability for aquifer storage and recovery in the MENA region from 1984-2015 Global reference evapotranspiration for food-security monitoring (ver. 2.1, April 2024)