Open Access. Powered by Scholars. Published by Universities.®
Physical Sciences and Mathematics Commons™
Open Access. Powered by Scholars. Published by Universities.®
- Discipline
-
- Environmental Sciences (851)
- Water Resource Management (508)
- Life Sciences (332)
- Oceanography and Atmospheric Sciences and Meteorology (281)
- Earth Sciences (270)
-
- Natural Resources Management and Policy (190)
- Fresh Water Studies (186)
- Environmental Monitoring (169)
- Environmental Indicators and Impact Assessment (161)
- Natural Resources and Conservation (157)
- Social and Behavioral Sciences (157)
- Hydrology (148)
- Environmental Health and Protection (147)
- Law (128)
- Engineering (121)
- Public Affairs, Public Policy and Public Administration (103)
- Water Law (103)
- Natural Resources Law (90)
- Environmental Policy (87)
- State and Local Government Law (86)
- Environmental Law (76)
- Civil and Environmental Engineering (73)
- Soil Science (73)
- Sustainability (67)
- Administrative Law (62)
- Ecology and Evolutionary Biology (59)
- Animal Sciences (58)
- Climate (55)
- Natural Resource Economics (55)
- Institution
-
- University of Arkansas, Fayetteville (114)
- University of Colorado Law School (112)
- University of Windsor (67)
- University of Kentucky (59)
- University of South Florida (56)
-
- Selected Works (39)
- University of Nevada, Las Vegas (35)
- Western Washington University (35)
- University of Nebraska - Lincoln (33)
- Department of Primary Industries and Regional Development, Western Australia (30)
- William & Mary (19)
- City University of New York (CUNY) (18)
- Eastern Kentucky University (18)
- Old Dominion University (17)
- University of Vermont (16)
- Portland State University (15)
- The University of Maine (15)
- University of Minnesota Morris Digital Well (14)
- Utah State University (14)
- Louisiana State University (12)
- California State University, Monterey Bay (11)
- Molloy University (11)
- Colby College (10)
- Furman University (10)
- Florida International University (9)
- Florida Institute of Technology (8)
- Edith Cowan University (7)
- Missouri State University (6)
- West Virginia University (6)
- Western Kentucky University (6)
- Publication
-
- Technical Reports (83)
- Focus on International Joint Commission Activities (64)
- Joseph C Makarewicz (25)
- Publications (WR) (24)
- Reports (21)
-
- Data Sets (20)
- Images (20)
- KWRRI Research Reports (20)
- EKU Faculty and Staff Scholarship (18)
- Electronic Theses and Dissertations (15)
- IGC Proceedings (1993-2023) (14)
- Journal of the Minnesota Academy of Science (14)
- International Conference on Hydroinformatics (13)
- Biosystems and Agricultural Engineering Faculty Publications (12)
- Graduate Theses and Dissertations (11)
- Salish Sea Ecosystem Conference (11)
- Furman Lake Restoration Book Gallery (10)
- Honors Theses (10)
- USF Tampa Graduate Theses and Dissertations (10)
- Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences (9)
- Resource management technical reports (9)
- CERCOM Reports (8)
- Journal of the Department of Agriculture, Western Australia, Series 4 (8)
- LSU Master's Theses (8)
- Ocean Engineering and Marine Sciences Faculty Publications (8)
- SERC Research Reports (8)
- Information Circular--KGS (7)
- Shifting Baselines and New Meridians: Water, Resources, Landscapes, and the Transformation of the American West (Summer Conference, June 4-6) (7)
- Western Water Law, Policy and Management: Ripples, Currents, and New Channels for Inquiry (Martz Summer Conference, June 3-5) (7)
- Books, Reports, and Studies (6)
- Publication Type
Articles 961 - 983 of 983
Full-Text Articles in Physical Sciences and Mathematics
Planning For Water Quality In The Bear River System In The State Of Utah, Utah Water Research Laboratory
Planning For Water Quality In The Bear River System In The State Of Utah, Utah Water Research Laboratory
Reports
No abstract provided.
A Detailed Investigation Of The Sociological, Economic, And Ecological Aspects Of Proposed Reservoir Sites In The Salt River Basin Of Kentucky, Stuart E. Neff, Louis A. Krumholz, John R. Baker, Daryl E. Jennings, Andrew C. Miller, Jerry S. Parsons, Vincent H. Resh, David S. White
A Detailed Investigation Of The Sociological, Economic, And Ecological Aspects Of Proposed Reservoir Sites In The Salt River Basin Of Kentucky, Stuart E. Neff, Louis A. Krumholz, John R. Baker, Daryl E. Jennings, Andrew C. Miller, Jerry S. Parsons, Vincent H. Resh, David S. White
KWRRI Research Reports
Samples of water, bottom fauna, and fishes were collected from 66 stations in the Salt River and one of its principal tributaries, the Beech Fork and its tributary, the Chaplin River, Kentucky. Precipitation ranged from 38.86 inches (1969) to 58.04 inches (1970), an increase of nearly 50 percent with marked fluctuations in discharge. Intensive comparisons of phosphates, sulfates, specific conductance, total alkalinity, total hardness, and turbidity showed the streams to be relatively clean and healthy. Nearly 300 different kinds of benthic organisms and other macroinvertebrates have been collected and identified from the basin. Detailed studies of caddisflies and stream drift …
Preliminary Reconnaissance Water Quality Survey Of The Buffalo National River, R. E. Babcock, H. C. Macdonald, E. E. Dale Jr., R. L. Meyer, Joe Nix, D. G. Parker, Eugene Schmitz
Preliminary Reconnaissance Water Quality Survey Of The Buffalo National River, R. E. Babcock, H. C. Macdonald, E. E. Dale Jr., R. L. Meyer, Joe Nix, D. G. Parker, Eugene Schmitz
Technical Reports
In accordance with Contract No. CX 700030105, dated 12 February 1973, the University of Arkansas , Water Resources Resear ch Center is submitting a "Preliminary Reconnaissance Water Quality Survey of the Buffalo National River." The Water Resources Research Center of Arkansas has supplied the necessary personnel and facil ities to perform a preliminary reconnaissance survey of the Buffalo National River of Arkansas with special emphasis placed on the establishment of both permanent and temporary benchmarks for water quality sampling. Preliminary water quality samples have been collected to make those chemical, physical, and biological analyses as defined by Mr . Roland …
A Water Quality Survey, Dale E. Mcmichael
A Water Quality Survey, Dale E. Mcmichael
Journal of the Minnesota Academy of Science
Representative factors influencing water quality in the Albert Lea, Minnesota area were chosen as to assess water quality and changes in the watershed which has been described as an earlier valley of the Shell Rock River.
Parameters representative of chemical, bacterial, and thermal pollution were, respectively, total phosphorous, total and fecal coliform counts, and temperature. Statistical analysis has revealed that significant differences in some parameters measured do exist when various sampling stations of a given sampling date are compared. Statistical analysis also has indicated that correlations do exist between fluctuation patterns when all sampling stations of a given sampling date …
Water Resources Of Part Of Canyonlands National Park, Southeastern Utah, C. T. Sumsion, E. L. Bolke
Water Resources Of Part Of Canyonlands National Park, Southeastern Utah, C. T. Sumsion, E. L. Bolke
Canyonlands Research Bibliography
Canyonlands National Park is in about the center of the Canyon Lands section of the Colorado Plateaus physiographic province in southeastern Utah. The part of the park discussed embraces an area of about 400 square miles comprising isolated mesas, precipitous canyons, and dissected broad benches near the confluence of the Green and Colorado Rivers, the only perennial streams in the area. The climate is arid to semiarid; normal annual precipitation ranges from less than 8 to about 10 inches. Potential evapotranspiration is about 41 inches annually.
Geology of the park is characterized by nearly horizontal strata that dip gently northward. …
Interim Report On Water Quality Investigation Degray Reservoir, Arkansas, J. Nix
Interim Report On Water Quality Investigation Degray Reservoir, Arkansas, J. Nix
Technical Reports
Impoundment of the Caddo River near Arkadelphia, Arkansas began in August, 1969. Detailed patterns of the dissolved oxygen distribution in this reservoir are presented for the period September, 1969 through April, 1971. Although the reservoir had not reached normal pool elevation, thermal stratification accompanied by severe hypolimnic oxygen depletion has been observed. The dissolved oxygen data show that an under flow occurs in the fall of the year and carries dissolved oxygen into the hypolimnic zone. The gradients of dissolved oxygen concentration observed during the winter indicate that the reservoir does not undergo complete mixing. A short summary of the …
Micronutrients And Biological Patterns In Lake Mead, Hasan K. Qashu, Lorne G. Everett, J. S. Carlson, Bureau Of Reclamation
Micronutrients And Biological Patterns In Lake Mead, Hasan K. Qashu, Lorne G. Everett, J. S. Carlson, Bureau Of Reclamation
Publications (WR)
Progressive increases in concentration of dissolved solids in the Colorado River water from Lake Powell to Imperial Dam seem to alter plankton dynamics and biological productivity of the river. Also, changes in biological productivity and micronutrients concentrations occur within the same reservoir. Development of a digital simulation model to predict micronutrients concentrations and biological productivity is necessary for diagnosing changes in plankton population and effluent-carrying capacity of the system.
The objectives of the study are: (1) to determine trace metal balance at different locations in Lake Mead, (2) to measure biological productivity and conduct plankton population counts at each sampling …
Digital Systems For On-Site Collection For Water Quality Analysis, M. K. Testerman
Digital Systems For On-Site Collection For Water Quality Analysis, M. K. Testerman
Technical Reports
A prototype system has been developed for recording and transmitting digital data at a remote water quality monitoring station in an unattended manner. As many as eight analog signals from transducers, which measure water quality characteristics such as dissolved oxygen, temperature, pH, chlorides, conductivity, redox, and turbidity, are converted to digital signals and recorded in binary coded decimal format on magnetic tape. This unit may be contacted from a central station for playback of the day's recording. The transmitted data can be recorded at the central station by teletype. Each data record includes a time-of-day "word" so that all data …
Magnesium Ion Inhibition Of Calcium Carbonate Precipitation And Its Relation To Water Quality, John J. Hassett
Magnesium Ion Inhibition Of Calcium Carbonate Precipitation And Its Relation To Water Quality, John J. Hassett
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
The effect of Mg++ ion on the solubility of calcium carbonate was determined using P. K. Weyls "carbonate saturometer."
The amount of calcium carbonate precipitated or dissolved was measured for five series of waters when equilibrated with solid carbonate.
It was found that the effect of Mg++ ion on solubility depend upon the nature of the solid phase: surface area, coprecipitated Mg++, minerology, etc.
Pure low area calcite showed an increase in solubility which could be explained by ion-pair formation, while its other carbonates departed from this behavior.
Distribution Of Trace Elements In Impoundments, J. Nix
Distribution Of Trace Elements In Impoundments, J. Nix
Technical Reports
An investigation of the trace element content of two impoundments on the Ouachita River, Arkansas, was conducted. Common water quality parameters were followed in the reservoirs in an effort to determine the factors which were influencing the trace element concentration. The following trace metals were determined in both the particulate phase (retained by a 0.45 micron filter) and the soluble phase (passed by a 0.45 micron filter): iron, manganese, copper, cobalt, nickel, lead, chromium, and zinc. These measurements were made periodically for one and a half years. Results indicate that the chemical regime of the impoundments which were studied was …
Morphology And Water Quality In Three Abandoned Granite Quarries, Keith M. Knutson
Morphology And Water Quality In Three Abandoned Granite Quarries, Keith M. Knutson
Journal of the Minnesota Academy of Science
Limnological conditions were studied in two abandoned granite quarries in George Friedrich Park, St. Cloud, Minn. These quarries were excavated from 1886 to 1890 and left shallow due to inadequate water pumping systems at the time. The quarries were less than one hectare in area and had mean depths of 7.3 and 8.2 m. The annual heat budget was about the same for both quarries, 10,535 gm. cal/cm•. Concentrations of [chemical symbols] were determined. Very low concentrations of nitrate nitrogen were found ([chemical symbols]). The hypomimia of both quarries contained hydrogen sulfide throughout the study. Data show West Quarry to …
Water Quality Study Of Lake Mead, Dale A. Hoffman, Paul R. Tramutt, Frank C. Heller, Bureau Of Reclamation
Water Quality Study Of Lake Mead, Dale A. Hoffman, Paul R. Tramutt, Frank C. Heller, Bureau Of Reclamation
Publications (WR)
This report presents Lake Mead Water quality data obtained from 1964 to 1966. The effect of filling Lake Powell on the water quality of Lake Mead is evaluated. General limnological principles and the present limnology of Lake Mead are discussed. Lake Mead has a warm monomictic annual temperature cycle characterized by summer stratification, fall overturn leading into a continuous circulation throughout the winter; temperatures never fall below 39 deg F (4 deg C). During stratification, lower dissolved oxygen values were recorded in the thermocline than in the epilimnion and hypolimnion. Mineral content increases from the upper to the lower end …
Salinity And Farmhouse Water Supplies, T C. Stoneman
Salinity And Farmhouse Water Supplies, T C. Stoneman
Journal of the Department of Agriculture, Western Australia, Series 4
PROVISION of a satisfactory water supply for the homestead is one of the many problems which have to be faced by all farmers.
For those served by the Comprehensive Water Supply Scheme, the solution is fairly simple.
For others, finding an adequate supply of good quality water can often be quite a headache.
The Quality Of Groundwaters In The Central Wheatbelt Of W.A, Eric Bettenay, F. J. Hingston
The Quality Of Groundwaters In The Central Wheatbelt Of W.A, Eric Bettenay, F. J. Hingston
Journal of the Department of Agriculture, Western Australia, Series 4
IN south-western Australia permanent rivers are virtually absent and the larger drainage systems such as the Swan-Avon, Murray and Blackwood, which have their headwaters in inland low rainfall areas, are generally saline.
Water For Agriculture. 5. Salt Poisoning In Livestock, J Craig
Water For Agriculture. 5. Salt Poisoning In Livestock, J Craig
Journal of the Department of Agriculture, Western Australia, Series 4
LIVESTOCK need a plentiful supply of good, fresh drinking water for normal health and high production.
Over large areas of Western Australia the water from bores, springs and wells contains varying but appreciable amounts of salt and special care may be needed to ensure that the stock water supply is satisfactory.
Water For Agriculture. 1. Water For Agricultural Purposes In Western Australia, Department Of Agriculture, Western Australia
Water For Agriculture. 1. Water For Agricultural Purposes In Western Australia, Department Of Agriculture, Western Australia
Journal of the Department of Agriculture, Western Australia, Series 4
THE total soluble salts content of a water is the most important characteristic in determining the suitability of Western Australian waters for stock, irrigation or general use.
Other quality characteristics are of secondary importance.
Soft Water For Dairy Cleaning, Department Of Agriculture, Western Australia
Soft Water For Dairy Cleaning, Department Of Agriculture, Western Australia
Journal of the Department of Agriculture, Western Australia, Series 4
CLEAN utensils are essential for the production of high quality dairy products.
Cleanliness of dairy equipment depends a lot on how efficiently the detergent can do its job.
Is Your Water Supply Safe?, D C. Mickle
Is Your Water Supply Safe?, D C. Mickle
Journal of the Department of Agriculture, Western Australia, Series 4
THERE can be no doubt in anyone's mind that the need for a clean, safe and adequate water supply is essential for the production of high quality milk and cream.
It naturally follows, that, even though every possible care has been taken in an endeavour to produce clean, germ-free milk and cream, contamination by bad water can render these efforts void.
Comprehensive Survey Of Sedimentation In Lake Mead, 1948-49, W. O. Smith, C. P. Vetter, G. B. Cummings, U.S. Bureau Of Reclamation
Comprehensive Survey Of Sedimentation In Lake Mead, 1948-49, W. O. Smith, C. P. Vetter, G. B. Cummings, U.S. Bureau Of Reclamation
Publications (WR)
Reservoirs are becoming an increasingly prominent feature of the American landscape. Built for flood mitigation and to change a fluctuating river into a dependable source of water for irrigation, power, and other purposes, they are predestined, like natural lakes, to be destroyed sometime following their creation. Sedimentation sooner or later robs most lakes and reservoirs of their capacity to store water. The significance of sedimentation in the life of Lake Mead, the largest artificial reservoir in the world, was realized when the plan for the reservoir was conceived, and an aerial survey of the floor was made in 1935 before …
Analyses Of Water Used In A Boiler Employed For Heating In A Public Building In St. Peter, Minn., J. A. Dodge
Analyses Of Water Used In A Boiler Employed For Heating In A Public Building In St. Peter, Minn., J. A. Dodge
Journal of the Minnesota Academy of Science
No abstract provided.
The Water Supply Of Minneapolis, James A. Dodge, C. L. Herrick, C. W. Hall
The Water Supply Of Minneapolis, James A. Dodge, C. L. Herrick, C. W. Hall
Journal of the Minnesota Academy of Science
No abstract provided.
An Analysis Of Filtered Water, James A. Dodge
An Analysis Of Filtered Water, James A. Dodge
Journal of the Minnesota Academy of Science
No abstract provided.
The Water Of Artesian Wells; Its Quality And The Possibility Of Its Becoming A Source Of Supply In Minnesota, C. N. Hewitt
The Water Of Artesian Wells; Its Quality And The Possibility Of Its Becoming A Source Of Supply In Minnesota, C. N. Hewitt
Journal of the Minnesota Academy of Science
No abstract provided.