Open Access. Powered by Scholars. Published by Universities.®
- Institution
-
- University of Nebraska - Lincoln (3011)
- China Coal Technology and Engineering Group (CCTEG) (1822)
- Utah State University (1173)
- University of Nevada, Las Vegas (968)
- University of Kentucky (951)
-
- University of Colorado Law School (898)
- Montana Tech Library (838)
- City University of New York (CUNY) (540)
- University of Arkansas, Fayetteville (538)
- Portland State University (457)
- University of South Florida (338)
- Department of Primary Industries and Regional Development, Western Australia (316)
- Clemson University (314)
- Chulalongkorn University (295)
- University of Texas at El Paso (263)
- Old Dominion University (242)
- Louisiana State University (232)
- New Jersey Institute of Technology (231)
- Montclair State University (224)
- Central Mining Institute (214)
- World Maritime University (204)
- University of Texas Rio Grande Valley (203)
- Air Force Institute of Technology (188)
- Edith Cowan University (175)
- Chapman University (174)
- SIT Graduate Institute/SIT Study Abroad (155)
- Chinese Academy of Sciences (147)
- Purdue University (132)
- South Dakota State University (130)
- University of Rhode Island (126)
- Keyword
-
- Sustainability (416)
- Climate change (400)
- Water quality (359)
- 2014 International Conference on Hydroinformatics HIC (355)
- United States (318)
-
- Gas (284)
- Groundwater (278)
- And Energy; Structural Materials; Sustainability (248)
- Energy Systems; Environmental Indicators and Impact Assessment; Environmental Monitoring; Mining Engineering; Oil (248)
- Western Australia (218)
- Priority Soils (215)
- Colorado (208)
- Drought (169)
- Water (168)
- Environment (162)
- Conservation (161)
- Remote sensing (160)
- Agriculture (157)
- California (153)
- Energy (148)
- Hydrology (145)
- Utah (142)
- Irrigation (123)
- Wyoming (119)
- Wetlands (117)
- West (115)
- Natural resources (113)
- Water supply (113)
- Salinity (111)
- Engineering (109)
- Publication Year
- Publication
-
- Coal Geology & Exploration (1822)
- Silver Bow Creek/Butte Area Superfund Site (826)
- Reports (603)
- School of Natural Resources: Faculty Publications (583)
- World of Coal Ash Proceedings (580)
-
- International Conference on Hydroinformatics (355)
- Theses and Dissertations (322)
- Theses (288)
- Water Current Newsletter (284)
- Open Access Theses & Dissertations (260)
- USF Tampa Graduate Theses and Dissertations (236)
- UNLV Theses, Dissertations, Professional Papers, and Capstones (217)
- United States Department of Agriculture Wildlife Services: Staff Publications (217)
- Applied Environmental Research (216)
- Journal of Sustainable Mining (214)
- Electronic Theses and Dissertations (203)
- Arkansas Water Resources Center Technical Reports (179)
- LSU Master's Theses (167)
- S.C. Water Resources Conference (164)
- Graduate Theses and Dissertations (152)
- Bulletin of Chinese Academy of Sciences (Chinese Version) (147)
- Independent Study Project (ISP) Collection (139)
- Dissertations and Theses (129)
- School of Earth, Environmental, & Marine Sciences Faculty Publications (126)
- Transmutation Sciences Materials (TRP) (125)
- All U.S. Government Documents (Utah Regional Depository) (123)
- KWRRI Research Reports (122)
- United States Geological Survey: Staff Publications (117)
- Marine Affairs Theses and Major Papers (110)
- Publications and Research (110)
- Publication Type
Articles 19021 - 19050 of 20572
Full-Text Articles in Entire DC Network
Eleventh Vertebrate Pest Conference
Eleventh Vertebrate Pest Conference
Vertebrate Pest Conference Proceedings: 11th (1984)
Contents
Gull Exclusion, George W.J. Laidlaw, Hans Blokpoel, Victor E.F. Solman, Margaret Mclaren
Gull Exclusion, George W.J. Laidlaw, Hans Blokpoel, Victor E.F. Solman, Margaret Mclaren
Vertebrate Pest Conference Proceedings: 11th (1984)
This paper reports on work carried out in a variety of sites and installations that have required active gull control. The methods used are a result of observations by a variety of researchers and attest to the effectiveness of a behavioral control technique with the use of thin steel spring wire or monofilament fishing line.
Wasteload Allocation Study Tampa Bay, Florida Vol. Iv Nutrient Box Model, B. E. Ross, M. A. Ross, P. D. Jerkins
Wasteload Allocation Study Tampa Bay, Florida Vol. Iv Nutrient Box Model, B. E. Ross, M. A. Ross, P. D. Jerkins
Reports
This volume describes the "Box Model" of Tampa Bay that was developed as a part of a Wasteload Allocation Study contract between the Florida Department of Environmental Regulation and the College of Engineering at the University of South Florida. The first three volumes document the development of the validated two-dimensional hydraulic and water quality models that were developed for Tampa and Hillsborough Bays. Development of a "Box Model" represents an experiment in simplification of the solution of what has been an increasingly more complicated field of study.
Wasteload Allocation Study Tampa Bay, Florida Vol. I Hydraulic Model Documentation, B. E. Ross, M. A. Ross, P. D. Jerkins
Wasteload Allocation Study Tampa Bay, Florida Vol. I Hydraulic Model Documentation, B. E. Ross, M. A. Ross, P. D. Jerkins
Reports
This first volume documents the theoretical development and present state of the University of South Florida's two-dimensional, hydraulic, estuary model. It represents the accumulation of 15 years of research and development at the Civil Engineering Mathematical Modeling Center. It has been designed to be completely compatible with a host of other specialty models including a two-dimensional ecologic model, one-dimensional tributary model, salinity model, thermal model, kinetic energy model, and others. Figure 1.2 is a graphical depiction of the compatibility and functionality of various models used with the 2-D hydraulic model.
Wasteload Allocation Study Tampa Bay, Florida Vol. Iii Model Validation, B. E. Ross, M. A. Ross, P. D. Jerkins
Wasteload Allocation Study Tampa Bay, Florida Vol. Iii Model Validation, B. E. Ross, M. A. Ross, P. D. Jerkins
Reports
This volume contains documentation of the calibration and verification (validation) of the hydraulic and water quality models used in the wasteload allocation study (WLA) of Tampa Bay, Florida. The first two volumes in this series contain the derivation and theory behind the mathematical formulation and solution techniques. The study was performed for the Florida Department of Environmental Regulation (FDER) by the University of South Florida (USF). The purpose of the study is to evaluate the effects of alternate discharge loading on the water quality of Tampa Bay.
Wasteload Allocation Study Tampa Bay, Florida Statistical Study, Peter Gaitho
Wasteload Allocation Study Tampa Bay, Florida Statistical Study, Peter Gaitho
Reports
This statistical study was carried out on the Tampa Bay area in an effort to establish some basic relationships between levels of chlorophyl A and various environmental factors. Several statistical analyses were carried out. It was decided to use original data rather than averages over several months. It was felt that this would give us more reliable results. At the outset, the study centered around the use of data from only three months during the year; namely, February, June and October. It was felt that these months would be representative of the seasonal difference. Later, all months of the year …
Wasteload Allocation Study Tampa Bay, Florida Vol. Ii Water Quality Model Doc., B. E. Ross, M. A. Ross, P. D. Jerkins
Wasteload Allocation Study Tampa Bay, Florida Vol. Ii Water Quality Model Doc., B. E. Ross, M. A. Ross, P. D. Jerkins
Reports
This second volume is a documentation of various transport models used at USF. Included, is a comprehensive documentation of the water quality model used in the WLA of Tampa Bay. Documentation of the particle transport and thermal models has been included in addition to the water quality ecological model because the authors wished to provide a historic listing of the more recent or popular transport models relevant to studies in this area.
Las Vegas Wash Multispectral Scanner Survey, T. H. Mace, M. V. Olsen, Environmental Protection Agency
Las Vegas Wash Multispectral Scanner Survey, T. H. Mace, M. V. Olsen, Environmental Protection Agency
Publications (WR)
At the request of the U.S. Bureau of Reclamation, Boulder City, Nevada, the U.S. Environmental Protection Agency's Environmental Monitoring Systems Laboratory at Las Vegas collected multispectral scanner imagery of Las Vegas Wash on October 1, 1982. A combined maximum likelihood classification and editing procedure was used to classify the multispectral scanner imagery into 12 categories of land cover. The classification identified four categories of marsh vegetation, one category of riparian, two categories of mixed scrub, and two desert categories. Turbid water and cultivated land formed an "other" category. Area tabulations were formed by georeferencing the classification to the Universal Transverse …
Socioeconomic Data Base Report For The Paradox Basin, Utah, Bechtel National, Inc.
Socioeconomic Data Base Report For The Paradox Basin, Utah, Bechtel National, Inc.
Elusive Documents
No abstract provided.
Central Utah Project, Bonneville Unit: Diamond Fork Power System: Final Environmental Impact Statement, Forest Service; Western Area Power Administration; United States
Central Utah Project, Bonneville Unit: Diamond Fork Power System: Final Environmental Impact Statement, Forest Service; Western Area Power Administration; United States
Elusive Documents
No abstract provided.
Flood-Plain Management Along The Upper Santa Ana River, Terrance Troy
Flood-Plain Management Along The Upper Santa Ana River, Terrance Troy
Theses Digitization Project
No abstract provided.
Water Current, Volume 16, No. 1, January/February 1984
Water Current, Volume 16, No. 1, January/February 1984
Water Current Newsletter
Director's Report
Water Policy Alternatives
Computerized Pivot Management Tested
Federal Water Publications
Research Review: Water Conservation Through Limited Irrigation of Corn and Grain Sorghum in the Great Plains
Call for Papers
Wetlands Their Use And Regulation
Wetlands Their Use And Regulation
United States Department of Commerce: Staff Publications
This report presents the findings and conclusions of OTA's analysis of approaches to wetlands use. Historically, wetlands were considered wastelands and conversion to other uses was actively encouraged. Two trends in recent decades, however, have altered this perception. First, there has been a growing appreciation for the esthetic and recreational qualities of wetlands; and second, there is now a general recognition of the hydrological and ecological services that wetlands provide. In spite of this increased awareness of the esthetic, recreational, and ecological values of wetlands, pressure to convert wetlands to cropland, commercial development sites, and other uses is still significant …
The Historical Development Of The Yakima-Tieton Irrigation District And Its Present Effect On Life In The Area Encompassing The District, Werner E. Lemke
The Historical Development Of The Yakima-Tieton Irrigation District And Its Present Effect On Life In The Area Encompassing The District, Werner E. Lemke
All Graduate Projects
Irrigation played a very important role in the development of the Yakima Valley as we know it today. The Yakima-Tieton Irrigation District was chosen to show how an irrigation system functions and the part it plays on the lives of the plants, animals and people in its area. A brief historical study of the Tieton Division of the Yakima Project was made. The construction of the Tieton Unit was studied. A slide lecture with an accompanying tape was developed to acquaint junior high school students with the purpose, function and affects of the Yakima-Tieton Irrigation District.
Alternative Land Uses, D A. Morrison, B. C. Mattinson
Alternative Land Uses, D A. Morrison, B. C. Mattinson
Journal of the Department of Agriculture, Western Australia, Series 4
One aproach to minimise the high nutrient content and associated algal pollution of the Peel-Harvey estuarine system is to reduce phosphorus losses at their source. Farmers can do this by changing land use is such a way thar phosphorus run-off fromthe catchment soils into drainage is prevented or at least reduced.
The department of Agriculture is investigating the economics of alternative uses, particularly substituting forestry with Pinus pinaster or Eucalyptus globulus (Tasmanian blue gum) for present beef and sheep enterprises. P. pinaster is used for logging and E. globulus for pulping.
Review And Evaluation Of The Gibson Dome High Level Nuclear Waste Repository Environmental Assessment: Geohydrologic Issues, Christopher J. Duffy, Brad Hall
Review And Evaluation Of The Gibson Dome High Level Nuclear Waste Repository Environmental Assessment: Geohydrologic Issues, Christopher J. Duffy, Brad Hall
Reports
Introduction: Background/Authorization: This report is meant to provide a technical review and evaluation of Department of Energy documents concerning groundwater, radionuclide travel time and monitoring issues relative to siting a high level nuclear waste repository in the Gibson Dome area in Southern Utah. in so doing we have, during a relatively short period of time, examined in detail the Department of Energy Guidelines concerning high level nuclear waste disposal (1983) including revisions (1984), and each draft of the Environmental Assessments for Davis and Lavender Canyon, up to and including the fifth draft (dated July 27, 1984). In addition, a large …
Summary Report: Updating The Estimation Of Water Surface Elevation Probabilities And Associated Damages For Great Salt Lake, L. Douglas James, David S. Bowles, D. George Chadwick, J. Paul Riley
Summary Report: Updating The Estimation Of Water Surface Elevation Probabilities And Associated Damages For Great Salt Lake, L. Douglas James, David S. Bowles, D. George Chadwick, J. Paul Riley
Reports
Problem Statement: Rising levels of the Great Salt Lake are severely impacting private and public property. in the private sector, the mineral industry, the railroad, and a number of recreation enterprises are suffering major damages. In the publi sector, the State of Utah is esperiencing large losses inflicted on roads and highways, waterfowl and related wildlife areas, and park and recreation facilities. The lake is partitioned by a semipervious railroad causeway into a north and a south arm with the sourth arm having about twice the water surface area and usually being two or three feet higher because it receibes …
Use Of The Hewlett-Packard 9810 Calculator System In Water Quality Analysis, Jerald S. Fifield
Use Of The Hewlett-Packard 9810 Calculator System In Water Quality Analysis, Jerald S. Fifield
Reports
Introduction: It is the purpose of this manual to illustrate the utilization of the Hewlett-Packard, Model 9810A calculator for analyzing water quality data. Familiarization of each program's capabilities is essential for successful application, thus the user should read over the section used before beginning. Each section is complete with instructions and illustrative examples.
Erosion And Sedimentation In Utah: A Guide For Control, C. Earl Israelsen, Eugene K. Israelsen
Erosion And Sedimentation In Utah: A Guide For Control, C. Earl Israelsen, Eugene K. Israelsen
Reports
No abstract provided.
Hydropower Potential At State Dam Logan River, Frank W. Haws
Hydropower Potential At State Dam Logan River, Frank W. Haws
Reports
No abstract provided.
New Concepts For Preliminary Hydropower Design: The Powermax Slope, Binary Turbine Sizing, And Static Regain, Frank W. Haws, Eugene K. Israelsen
New Concepts For Preliminary Hydropower Design: The Powermax Slope, Binary Turbine Sizing, And Static Regain, Frank W. Haws, Eugene K. Israelsen
Reports
In Utah during the 1960s, the cost of producing electrical energy was as much, or in some cases more, by hydroelectric generation than by plants using steam from coal fired boilers. The relatively high hydropower cost was generally attributed to maintenance and replacement costs associated with plants that had been build in the 1920s. Utah Power & Light Company during the 1960 period decided not to renew power licenses and to abandon many small hdyroplants. Since 1973, rising coal and related fossil fuel costs have caused steam generation costs to accelerate and have made hydroelectric generation relatively more attractive. However, …
Sediment-Phosphorus Relationships In Deer Creek Reservoir, Jay J. Messer, Thomas B. Hardy, Jean M. Ihnat
Sediment-Phosphorus Relationships In Deer Creek Reservoir, Jay J. Messer, Thomas B. Hardy, Jean M. Ihnat
Reports
Summary and Conclusions: Laboratory analyses of sediment samples recovered from Deer Creek Reservoir showed the sediments to have amoderate potential for serving as a source of phosphorus (P) for the overlying water solumn under anaerobic conditions. This source could account for the occurrence or exacerbation of blue-green algal blooms in the upper end of the reservoir when the sediment surface becomes anaerobic late in the summer. It could also delay the response of the reservoir to programs that decrease external P loading, if the upper end of the reservoir still has large enough algal blooms to render the sediment-water interface …
A Groundwater Model Of Cache Valley, Utah, Calvin G. Clyde, Roland W. Jeppson, Win-Kai Liu
A Groundwater Model Of Cache Valley, Utah, Calvin G. Clyde, Roland W. Jeppson, Win-Kai Liu
Reports
This report describes the development, calibration and use of quantitative, predictive management model for the groundwater in the Utah portion of the Cache Valley in northern Utah. The quasi-three-dimensional finite difference computer model was adapted from the U.S. Geological Survey’s Trescott and Larson model and simulates the groundwater levels and flows in the groundwater basin. The variable spacing grid system is 23 nodes x 38 x 2 and represents the complex natural system by a simpler approximation with one unconfined and one confined aquifer and the appropriate boundary and initial conditions. River nodes, spring nodes, and constant head nodes were …
Abstracts Of Specialty Conference Papers; Delineation Of Landslide, Flash Flood And Debris Flow Hazards In Utah, B. Kaliser, M. K. Mccarter, R. Pack, J. Newman
Abstracts Of Specialty Conference Papers; Delineation Of Landslide, Flash Flood And Debris Flow Hazards In Utah, B. Kaliser, M. K. Mccarter, R. Pack, J. Newman
Reports
No abstract provided.
Trihalomethane Compounds And Their Precursors In Salt Lake County: Evaluation Of Trihalomethane Source And Production, Kyle R. Cook, V. Dean Adams, Dennis B. George, Vincent A. Lamarra, Richard A. Hanson
Trihalomethane Compounds And Their Precursors In Salt Lake County: Evaluation Of Trihalomethane Source And Production, Kyle R. Cook, V. Dean Adams, Dennis B. George, Vincent A. Lamarra, Richard A. Hanson
Reports
Salt Lake County, Utah, watershed streams, drinking water treatment plants, and distribution systems were monitored for a period of one year or greater to determine the seasonal watershed precursor load, trihalomethane (THM) formation, and correlation between the two in the drinking water supplies. In addition, unit treatment processes were examined at Parleys, Big and Little Cottonwood water treatment plants, in the spring and late summer, to evaluate THM precursor reduction and THM formation. Additional studies were also conducted to appraise the potential contribution of natural sources to watershed THM precursor loading. Total organic carbon was used to estimate THM precursor …
Management Of Groundwater Recharge Areas In The Mouth Of Weber Canyon, Calvin G. Clyde, Christopher J. Duffy, Edward P. Fisk, Daniel H. Hoggan, David E. Hansen
Management Of Groundwater Recharge Areas In The Mouth Of Weber Canyon, Calvin G. Clyde, Christopher J. Duffy, Edward P. Fisk, Daniel H. Hoggan, David E. Hansen
Reports
Proper management of surface and groundwater resources is important for their prolonged and a beneficial use. Within the Weber Delta area there has existed a continual decline in the piezometric surface of the deep confined aquifer over the last 40 years. This decline ranges from approximately 20 feet along the eastern shore of the Great Salt Lake to 50 feet along in the vicinity of Hill Air Force Base. Declines in the piezometric surface are undesirable because of the increased well installation costs, increased pumping costs, decreased aquifer storage, increased risk of salt water intrusion, and the possibility of land …
Tackling The Problem Off The Farm, C M. Croft
Tackling The Problem Off The Farm, C M. Croft
Journal of the Department of Agriculture, Western Australia, Series 4
Methods of redusing phosphorus losses from the catchment soils of the Peel-Harvey esturine system have been discussed in other articles in this Journal.
This article briefly discusses a range of 'off the farm' techniques to improve phosphorus flushing from Peel Inlet or Harvey Estuary to the sea and to treat the phosphorus and the algae. These techniques were among more than 100 management options evaluated by the Peel-Harvey Study Group.
Factors Affecting Water Quality And Microinvertebrate Distribution Within A Small Black Hills Stream, Henry G. Drewes
Factors Affecting Water Quality And Microinvertebrate Distribution Within A Small Black Hills Stream, Henry G. Drewes
Electronic Theses and Dissertations
A comparative evaluation of the benthic macroinvertebrate fauna was conducted concurrently with a physiochemical investigation on Slate Creek, Pennington County, South Dakota in the Black Hills. Water quality differences between years and among stations were detected in Slate Creek from both physiochemical and macroinvertebrate evaluations. The primary sources of disturbance to the Slate Creek study site during the sampling period were landscaping activities within the Deerfield Park Resort development and livestock activity. Increased runoff and elevated stream flows in 1982 were responsible for the variation in water quality between years. Water quality differences among stations indicated significantly (P < 0.05) higher turbidity and temperature immediately below the development site in 1981 and 1982. Significantly (P < 0.05) higher fecal coliform bacteria counts were observed at station 5 for both years, resulting from increased livestock activity. Phosphates and nitrates were highest at stations 4 and 5 but were not significantly (P > 0.05) different …
Water Quality Evaluation Yatesville Lake Project: Volume 1, Stephen B. Sullivan, Edward G. Foree, John S. Tapp
Water Quality Evaluation Yatesville Lake Project: Volume 1, Stephen B. Sullivan, Edward G. Foree, John S. Tapp
KWRRI Research Reports
Point sources of pollution identified in the Blaine Creek watershed area consisted of oil and gas facility sources and mine related sources. A total of 493 point sources of pollution were inventoried which included 167 oil and gas related sources, 321 mine sediment structures, and 5 hollow fill groundwater seeps. The highest concentration of these point sources of pollution occurred in the south to southwest portion of the watershed in the area proximate to the Martha Field.
Adverse impacts to surface and groundwaters resulting from the 326 mine and groundwater point sources of pollution identified did not appear significant as …
Las Vegas Wash Advanced Water Quality Study: Final Report, Richard A. Roline, James J. Sartoris, U.S. Bureau Of Reclamation
Las Vegas Wash Advanced Water Quality Study: Final Report, Richard A. Roline, James J. Sartoris, U.S. Bureau Of Reclamation
Publications (WR)
The purpose of the Las Vegas Wash Advanced Water Quality Study is to determine the existence, extent, and mechanisms of nutrient and toxin stripping in Las Vegas Wash under present conditions and under future conditions, both with and without construction of the proposed salinity control unit as described by the Bureau of Reclamation (USBR, 1982b). This study was performed for the Lower Colorado Region Division of Planning by personnel of the Environmental Sciences Section of the Division of Research and Laboratory Services, E&R Center, Denver, Colorado. Work on the study began in February 1983. The general approach adopted for this …