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Full-Text Articles in Civil and Environmental Engineering
Water And Energy Balance Of A Riparian And Agricultural Ecosystem Along The Lower Colorado River, Saleh Taghvaeian
Water And Energy Balance Of A Riparian And Agricultural Ecosystem Along The Lower Colorado River, Saleh Taghvaeian
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Spatially-distributed water consumption was modeled over a segment of the Lower Colorado River, which contains irrigated agricultural and Tamarisk-dominated riparian ecosystems. For the irrigation scheme, distributed evapotranspiration data were analyzed in conjunction with point measurements of precipitation and surface flow in order to close daily and annual water balance. The annual closure error was less than 1% of the total water diversion to the area. In addition, it was found that the soil water storage component of the water balance cannot be neglected if the analysis is performed over time frames shorter than annual (e.g. growing season).
Water consumption was …
Estimation Of Field Alfalfa Evapotranspiration In A Windy, Arid Environment, J. Burdette Barker
Estimation Of Field Alfalfa Evapotranspiration In A Windy, Arid Environment, J. Burdette Barker
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Evapotranspiration (ET) of center pivot irrigated alfalfa was studied in the windy, arid, Curlew Valley, Northern Box Elder County, Utah, during the summers of 2009 and 2010. ET was estimated using eddy covariance (EC) and surface renewal (SR) techniques. ET estimates from the EC and SR analyses were compared with estimates using ASCE Standardized Reference ET Equation, with both dual and mean crop coefficients.
EC energy balance closure was 0.80, on average, in 2009 and 0.76 in 2010. The SR weighting parameter (α) was calculated through linear regression of EC and SR sensible heat flux estimates. Alpha was found to …