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Full-Text Articles in Engineering
Hydrological Behavior Of Grasslands Of The Sandhills Of Nebraska: Water And Energy Balance Assessment From Measurements, Treatments And Modeling, Venkataramana Sridhar, David A. Wedin
Hydrological Behavior Of Grasslands Of The Sandhills Of Nebraska: Water And Energy Balance Assessment From Measurements, Treatments And Modeling, Venkataramana Sridhar, David A. Wedin
Civil Engineering Faculty Publications and Presentations
Understanding energy and water balance processes in the Sandhills is crucial to assess the land-atmosphere feedback effects. The Sandhills located in western Nebraska covers a vast grassland ecosystem with limited variability in vegetation and soil. However, the combined effect of topography, land cover and micrometeorology by subjecting the land surface to various disturbances and treatments is rarely studied. The NOAH Land Surface Model was used to estimate net radiation, latent, sensible and ground heat fluxes as well as water balance components for two growing seasons between 2005 and 2006 in various plots at the Grasslands Destabilization Experimental site where these …
Development Of The Soil Moisture Index To Quantify Agricultural Drought And Its “User Friendliness” In Severity-Area-Duration Assessment, Venkataramana Sridhar, Kenneth G. Hubbard, Jinsheng You, Eric D. Hunt
Development Of The Soil Moisture Index To Quantify Agricultural Drought And Its “User Friendliness” In Severity-Area-Duration Assessment, Venkataramana Sridhar, Kenneth G. Hubbard, Jinsheng You, Eric D. Hunt
Civil Engineering Faculty Publications and Presentations
This paper examines the role of soil moisture in quantifying drought through the development of a drought index using observed and modeled soil moisture. In Nebraska, rainfall is received primarily during the crop-growing season and the supply of moisture from the Gulf of Mexico determines if the impending crop year is either normal or anomalous and any deficit of rain leads to a lack of soil moisture storage. Using observed soil moisture from the Automated Weather Data Network (AWDN), the actual available water content for plants is calculated as the difference between observed or modeled soil moisture and wilting point, …