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Environmental Sciences

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Theses/Dissertations

2010

Bowen Ratio

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Estimating Evapotranspiration Using Remote Sensing: A Hybrid Approach Between Modis Derived Enhanced Vegetation Index, Bowen Ratio System, And Ground Based Micro-Meteorological Data, Sumantra Chatterjee Jan 2010

Estimating Evapotranspiration Using Remote Sensing: A Hybrid Approach Between Modis Derived Enhanced Vegetation Index, Bowen Ratio System, And Ground Based Micro-Meteorological Data, Sumantra Chatterjee

Browse all Theses and Dissertations

We investigated water loss by evapotranspiration (ET) from the Palo Verde Irrigation District (PVID) and the Cibola National Wildlife Refuge (CNWR) in southern California bordering the Colorado River collaborating with the United States Bureau of Reclamation (U.S.B.R.). We developed an empirical model to estimate ET for the entire PVID using satellite derived MODIS enhanced vegetation index (EVI), and ground based measurements of solar radiation and vapor pressure. We compared our predictions with U.S.B.R. estimates through statistical cross validation and showed they agree with an error less than 8%. We tested the same model for an alfalfa field inside PVID to …