Maps aridity of HUC06 basins using Google Earth Engine (GEE) https://egcl.uark.edu/applications/ https://cartoscience.users.earthengine.app/view/aridity-index
The aridity index also known as the dryness index is the ratio of potential evapotranspiration to precipitation. The aridity index indicates water deficiency. The aridity index is used to classify locations as humid or dry. The evaporation ratio (evaporation index) on the other hand indicates the availability of water in watersheds. The evaporation index is inversely proportional to water availability. For long periods renewable water resources availability is residual precipitation after evaporation loss is deducted. These two ratios provide very useful information about water availability. Understating the powerful potential of the aridity index and evaporation ratio, this app is developed on the Google Earth Engine using NLDAS-2 and MODIS products to map temporal variability of the Aridity Index and Evaporation ratio over CONUS. The app can be found at https://cartoscience.users.earthengine.app/view/aridity-index.
Access the app through the provided link or add the provided code to Google Earth Engine (GEE) for visualization and editing. Please remember to cite the app as Wolkeba, F. T., B. G. Peter (2024). Aridity Index Mapper Google Earth Engine App, https://doi.org/10.4211/hs.e5c0e11d49d24762a7edc82e1adea70c for any data or information used from the app.