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Full-Text Articles in Physical Sciences and Mathematics
Simulation Of Daily And Monthly Stream Discharge From Small Watersheds Using The Swat Model, Crystal A. Spruill, Stephen R. Workman, Joseph L. Taraba
Simulation Of Daily And Monthly Stream Discharge From Small Watersheds Using The Swat Model, Crystal A. Spruill, Stephen R. Workman, Joseph L. Taraba
Biosystems and Agricultural Engineering Faculty Publications
The Soil and Water Assessment Tool (SWAT) was evaluated and parameter sensitivities were determined while modeling daily streamflows in a small central Kentucky watershed over a two-year period. Streamflow data from 1996 were used to calibrate the model and streamflow data from 1995 were used for evaluation. The model adequately predicted the trends in daily streamflow during this period although Nash-Sutcliffe R2 values were –0.04 and 0.19 for 1995 and 1996, respectively. The model poorly predicted the timing of some peak flow values and recession rates during the last half of 1995. Excluding daily peak flow values from August …
Evaporation Reduction Potential In An Undisturbed Soil Irrigated With Surface Drip And Sand Tube Irrigation, Masoud Meshkat, Richard C. Warner, Stephen R. Workman
Evaporation Reduction Potential In An Undisturbed Soil Irrigated With Surface Drip And Sand Tube Irrigation, Masoud Meshkat, Richard C. Warner, Stephen R. Workman
Biosystems and Agricultural Engineering Faculty Publications
The efficiency of drip irrigation is highly dependent on evaporation losses occurring from the constantly saturated soil beneath emitters. Advent of subsurface drip irrigation is in part an approach to curb this inefficiency. An irrigation method, Sand Tube Irrigation (STI), is proposed to increase the efficiency of “Normal” surface applied drip Irrigation (NI method) on permanent tree crops without the need for burying the irrigation tubing. The sand tube consists of removing a soil core beneath the emitter and filling the void with coarse sand. A weighing lysimeter was constructed in the laboratory and instrumented to directly measure temporal evaporation …
Kentucky Water Resources Research Institute Annual Technical Report Fy 1999, Kentucky Water Resources Research Institute, University Of Kentucky
Kentucky Water Resources Research Institute Annual Technical Report Fy 1999, Kentucky Water Resources Research Institute, University Of Kentucky
KWRRI Annual Technical Reports (USGS’s 104b Grant Program)
The FY 1999 Annual Technical Report for Kentucky consolidates the reporting requirements of the Section 104(b) base grant and regional competitive grant awards in a single technical report which includes: 1) a synopsis of each ongoing research project and each research project completed during the period, 2) a list of related reports published, 3) a brief description of information transfer activities, 4) a summary of student support during the reporting period, and 5) notable achievements and awards during the year. The activities supported by Section 104 (b) and the required matching funds are interwoven into the Kentucky Water Resources ResearchInsitute's …