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Full-Text Articles in Engineering

Watershed Management And Water Production Study For State Of Utah, Ibrahim Nourein Mohammed, David G. Tarboton Sep 2008

Watershed Management And Water Production Study For State Of Utah, Ibrahim Nourein Mohammed, David G. Tarboton

Civil and Environmental Engineering Faculty Publications

The amount of water produced from a watershed depends on the climate, soils, geology, land cover and land use. Precipitation water inputs in the form of rain or snow are partitioned by the watershed into evapotranspiration, runoff and groundwater recharge. This study has examined factors that may impact the production of runoff from Utah watersheds, focusing on factors related to land and watershed management. Specifically we are interested in how land use changes, such as afforestation, deforestation, agricultural, urban, industrial and mining development, impact runoff. The scale of interest is regional subbasins at the USGS cataloging unit 8 digit Hydrologic …


A Relational Model For Environmental And Water Resources Data, Jeffery S. Horsburgh, David G. Tarboton, David R. Maidment, Ilya Zaslavsky May 2008

A Relational Model For Environmental And Water Resources Data, Jeffery S. Horsburgh, David G. Tarboton, David R. Maidment, Ilya Zaslavsky

Civil and Environmental Engineering Faculty Publications

Environmental observations are fundamental to hydrology and water resources, and the way these data are organized and manipulated either enables or inhibits the analyses that can be performed. The Observations Data Model presented here provides a new and consistent format for the storage and retrieval of point environmental observations in a relational database designed to facilitate integrated analysis of large data sets collected by multiple investigators. Within this data model, observations are stored with sufficient ancillary information (metadata) about the observations to allow them to be unambiguously interpreted and to provide traceable heritage from raw measurements to useable information. The …


Optimization Model For National Water Master Planning: Design And Documentation, Richard C. Peralta Apr 2008

Optimization Model For National Water Master Planning: Design And Documentation, Richard C. Peralta

Civil and Environmental Engineering Faculty Publications

Physical distribution system and Balancing and Allocation and Transfer modules descriptors.


Final Report For Irrigation Water Quality Monitoring Of The Jordan River, 2008, Richard C. Peralta, Bassel Timani Jan 2008

Final Report For Irrigation Water Quality Monitoring Of The Jordan River, 2008, Richard C. Peralta, Bassel Timani

Civil and Environmental Engineering Faculty Publications

The goal of the Jordan River Water Quality Project is to assess the quality of irrigation water removed from the Jordan River at three diversion locations: Jordan Narrows (JN), Cahoon and Maxfield (CM), and Jordan & Salt Lake Canal (JSLC). During 2008, Salt Lake City Corporation personnel took water samples on 12 dates from April 18 to September 25, 2008. Utah State University Analytical Laboratories (USUAL), an EPAcertified laboratory, performed water analyses on the samples. USUAL is located at Utah State University (USU) in Logan, Utah.


Optimal In-Situ Bioremediation System Design Using Simulated Annealing, H. J. Shieh, Richard C. Peralta Jan 2008

Optimal In-Situ Bioremediation System Design Using Simulated Annealing, H. J. Shieh, Richard C. Peralta

Civil and Environmental Engineering Faculty Publications

The presented procedure combines continuous simulated annealing (CSA) heuristic optimization with BIOPLUME II simulation for optimizing in-situ bioremediation system design. The design goal is to minimize the total cost of facility installation and operation needed to achieve contaminant plume containment and cleanup. System design elements include pumping rates and well locations. During optimization, pumping rates are treated as continuous variables, differing from previously reported simulated annealing combinatorial optimization for groundwater management. To improve computation efficiency, CSA annealing schedules employing four different temperature update functions (TUF) are contrasted. Each yields somewhat different optimal designs and requires different computation effort. An adaptive …


Lidar Based Emissions Measurement At The Whole Facility Scale: Method And Error Analysis, Gail E. Bingham, Christian C. Marchant, Vladimir V. Zavyalov, Douglas J. Ahlstrom, Kori D. Moore, Derek S. Jones, Thomas D. Wilkerson, Lawrence E. Hipps, Randy S. Martin, Jerry L. Hatfield, John H. Prueger, Richard L. Pfeiffer Jan 2008

Lidar Based Emissions Measurement At The Whole Facility Scale: Method And Error Analysis, Gail E. Bingham, Christian C. Marchant, Vladimir V. Zavyalov, Douglas J. Ahlstrom, Kori D. Moore, Derek S. Jones, Thomas D. Wilkerson, Lawrence E. Hipps, Randy S. Martin, Jerry L. Hatfield, John H. Prueger, Richard L. Pfeiffer

Civil and Environmental Engineering Faculty Publications

Particulate emissions from agricultural sources vary from dust created by operations and animal movement to the fine secondary particulates generated from ammonia and other emitted gases. The development of reliable facility emission data using point sampling methods designed to characterize regional, well-mixed aerosols are challenged by changing wind directions, disrupted flow fields caused by structures, varied surface temperatures, and the episodic nature of the sources found at these facilities. We describe a three-wavelength lidar-based method, which, when added to a standard point sampler array, provides unambiguous measurement and characterization of the particulate emissions from agricultural production operations in near real …