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Full-Text Articles in Engineering
Relating Climatic Attributes And Water Resources Allocation: A Study Using Surface Water Supply And Soil Moisture Indices In The Snake River Basin, Idaho, David J. Hoekema, Venkataramana Sridhar
Relating Climatic Attributes And Water Resources Allocation: A Study Using Surface Water Supply And Soil Moisture Indices In The Snake River Basin, Idaho, David J. Hoekema, Venkataramana Sridhar
Civil Engineering Faculty Publications and Presentations
Climate change forced by anthropogenic activities has been ongoing since at least the beginning of the industrial revolution. Part of the recent warming in the western United States has been attributed to anthropogenic climate change. This research seeks to answer the basic question of how declining streamflow, increasing temperatures, and fluctuation in precipitation have impacted water resource allocation in the Snake River Plain over the past 35 years (1971-2005). Understanding how changes in climatic attributes have historically impacted water allocation should help water managers better understand how projected climate change may influence allocation. Annual and monthly diversion trends from 62 …
Climate Change Impacts: An Assessment For Water Resources Planning And Management In The Pacific Northwest Of The U.S, Venkataramana Sridhar, Xin Jin
Climate Change Impacts: An Assessment For Water Resources Planning And Management In The Pacific Northwest Of The U.S, Venkataramana Sridhar, Xin Jin
Civil Engineering Faculty Publications and Presentations
Assessing the hydrological impacts of climate change in the Pacific Northwest (PNW) region of the United States is important. Many global circulation models (GCMs) have a wide range of temperature and precipitation predictions for the PNW region (Bureau of Reclamation, 2011). Numerous studies have reported that decreasing snow pack, increasing temperatures and decreasing streamflow for many basins. For instance, Mote (2003) indicates that annual average temperatures in the Northwest rose faster than the global average during the 20th century. This warming occurred mostly during the winter and spring. The predominance of winter and spring warming, especially in regard to extreme …
Electromagnetic Waves In Contaminated Soils, Arvin Farid, Akram N. Alshawabkeh, Carey M. Rappaport
Electromagnetic Waves In Contaminated Soils, Arvin Farid, Akram N. Alshawabkeh, Carey M. Rappaport
Civil Engineering Faculty Publications and Presentations
Soil is a complex, potentially heterogeneous, lossy, and dispersive medium. Modeling the propagation and scattering of electromagnetic (EM) waves in soil is, hence, more challenging than in air or in other less complex media. This chapter will explain fundamentals of the numerical modeling of EM wave propagation and scattering in soil through solving Maxwell’s equations using a finite difference time domain (FDTD) method. The chapter will explain how: (i) the lossy and dispersive soil medium (in both dry and fully water-saturated conditions), (ii) a fourth phase (anomaly), (iii) two different types of transmitting antennae (a monopole and a dipole), and …
Effects Of Coupling In Understanding The Surface Energy Balance In The Snake River Basin, Idaho, Thilinl Jaksa, Kevin Nuss, Venkataramana Sridhar
Effects Of Coupling In Understanding The Surface Energy Balance In The Snake River Basin, Idaho, Thilinl Jaksa, Kevin Nuss, Venkataramana Sridhar
Civil Engineering Faculty Publications and Presentations
An accurate estimation of surface fluxes and evapotranspiration is critical in understanding the hydrological and meteorological processes linking the land and the atmosphere. Due to difficulties in obtaining extensive and timely field measurements, land surface and atmospheric models are widely employed in estimating such fluxes. This study focuses on testing the ability of Noah LSM to simulate the surface fluxes both in an uncoupled mode and coupled within an atmospheric model. An agricultural area in the Snake River Basin in Idaho and its surrounding natural vegetation regions are the study area. Two model improvements are tested in this investigation: modification …
The Adaptability And Sustainability Of Surface Water Diversions Along The Main Stem Of The Snake River In Southern Idaho, David J. Hoekema, Venkataramana Sridhar, Xin Jin
The Adaptability And Sustainability Of Surface Water Diversions Along The Main Stem Of The Snake River In Southern Idaho, David J. Hoekema, Venkataramana Sridhar, Xin Jin
Civil Engineering Faculty Publications and Presentations
Agriculture in southern Idaho depends heavily on the conversion of snowpack into spring runoff. The Natural Resource Conservation Service (NRCS) has developed a Surface Water Supply Index (SWSI) as a tool to predict whether or not forecasted runoff and reservoir storage will be adequate to meet irrigator’s needs at a basin scale. This research by comparing SWSI to diversions for individual canals advances the use of SWSI to develop a Surface Water Supply Metric (SWSM) that can be used to estimate the reliability and sustainability of diversions under historic and projected time periods. An historic analysis of diversions during three …
Effects Of Electromagnetic Stimulation On Soil’S Hydraulic Conductivity, Jonathan Rocha, Arvin Farid, Jim Browning
Effects Of Electromagnetic Stimulation On Soil’S Hydraulic Conductivity, Jonathan Rocha, Arvin Farid, Jim Browning
College of Engineering Poster Presentations
Our research involves the identification of the different effects that electromagnetic (EM) stimulation has on varying soil properties; properties such as hydraulic conductivity. This work could prove to be of importance in furthering our understanding of the effects of EM stimulation with regard to the hydraulic conductivity of soil. A positive correlation between EM stimulation and an increase in hydraulic conductivity could have broad applications for environmental contaminant mitigation in soils and for various geotechnical construction applications such as minimizing soil setup during pile driving operations. EM waves can be used to enhance soil and groundwater remediation in a way …