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Full-Text Articles in Engineering
Behavior Of Completely Automated Evapotranspiration Estimation (Eemetric), Atiqullah Atif
Behavior Of Completely Automated Evapotranspiration Estimation (Eemetric), Atiqullah Atif
Department of Civil and Environmental Engineering: Dissertations, Theses, and Student Research
Evapotranspiration (ET) is the second-largest component in the water balance equation, globally consuming 70% of the earth’s annual precipitation. Accurate and consistent estimation of ET is essential for ensuring water resources sustainability, proper management, planning, and regulations of water resources. Though a 100% accurate estimation of ET may not be feasible with the current technology, there are proven techniques that give us estimates of ET we can heavily rely on. Mapping Evapotranspiration at High Resolution with Internalized Calibration (METRIC) is a widely used surface energy balance model that produces relatively accurate ET maps utilizing remote sensing data and requires skilled …
Integration Of Remote Sensing And Proximal Sensing For Improvement Of Field Scale Water Management, Foad Foolad
Integration Of Remote Sensing And Proximal Sensing For Improvement Of Field Scale Water Management, Foad Foolad
Department of Civil and Environmental Engineering: Dissertations, Theses, and Student Research
Water is one of the most precious natural resources, and sustainable water resources development is a significant challenge facing water managers over the coming decades. Accurate estimation of the different components of the hydrologic cycle is key for water managers and planners in order to achieve sustainable water resources development. The primary goal of this dissertation was to investigate techniques to combine datasets acquired by remote and proximal sensing and in-situ sensors for the improvement of monitoring near surface water fluxes. This dissertation is separated into three site-specific case studies. First study, investigated the feasibility of using inverse vadose zone …
Bias And Other Error In Gridded Weather Data Sets And Their Impacts On Estimating Reference Evapotranspiration, Philip A. Blankenau
Bias And Other Error In Gridded Weather Data Sets And Their Impacts On Estimating Reference Evapotranspiration, Philip A. Blankenau
Department of Civil and Environmental Engineering: Dissertations, Theses, and Student Research
Gridded weather data sets are increasingly used in a variety of hydrologic and agricultural applications due to their complete spatial and temporal coverage. One application of gridded data sets is the estimation of evapotranspiration (ET). Several operational remote sensing (RS) approaches for estimating ET, such as the SEBAL, METRIC and EEFlux models, require estimates of reference ET (ETref), where ETref is expected ET from a hypothetical reference crop of clipped grass or alfalfa. Gridded weather data provide for the computation of ETref in all areas of a remote sensing image, and therefore potentially remove the need for dense weather station …
Development And Assessment Of A Groundwater Sustainability Index In Climatically Diverse Groundwater Irrigated Regions In Nebraska, Maria A. Mulet Jalil
Development And Assessment Of A Groundwater Sustainability Index In Climatically Diverse Groundwater Irrigated Regions In Nebraska, Maria A. Mulet Jalil
Department of Agricultural and Biological Systems Engineering: Dissertations, Theses, and Student Research
The aim of this research was to evaluate the impact of regional change in ET on groundwater level changes and the assessment and development of a groundwater sustainability index for climatically diverse regions across Nebraska during 2000-2014. Irrigation in the selected regions is predominantly supplied by groundwater. The hypothesis is that groundwater use can become sustainable if the regional evapotranspiration (ET) is managed so that it equals the ET of vegetation that is native to the region. Site locations were Box Butte, Chase, Dundy, Holt LNNRD and York Counties and 3 ecosystems were evaluated: native vegetation, dryland and irrigated cropping …