Groeneveld (2008) Remotely-sensed groundwater evapotranspiration from alkali scrub affected by declining water table
This study evaluated the ability of remotely-sensed NDVI* to predict annual evapotranspiration (ET) and groundwater evapotranspiration (ETg) of alkali scrub over a 17-year period with a 2.5 meter water table decline. It found that NDVI* underestimated ETg due to its insensitivity to direct soil-surface evaporation of groundwater (Eg), and developed mathematical curves to estimate ETg based on depth to groundwater (DTW).