DETAW: Delta Evapotranspiration of Applied Water

Delta Evapotranspiration of Applied Water (DETAW) model estimates the daily evapotranspiration of applied water, which is the water demand for crop evapotranspiration minus water supplied by effective rainfall and effective seepage, on each of 168 islands in the Sacramento-San Joaquin Delta, using the annual information of land use, daily temperature, and daily precipitation. The effective rainfall and seepage are the water amounts crops consume, not the actual rainfall and seepage. Version 1.0 produced the island applied water, effective rainfall, effective seepage and other terms related to the ground surface water balance on each island. Version 2.0 modified the Version 1.0 code and converted the island results to the diversion, seepage, and drainage on DSM2 nodes according to the similar algorithm in DICU.


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Please send comments and questions to Bob Suits at