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Articles 1351 - 1362 of 1362
Full-Text Articles in Environmental Sciences
Evaluation Of Runoff Coefficients From Small Natural Drainage Areas, Carlos Fix Miller, L. Douglas James
Evaluation Of Runoff Coefficients From Small Natural Drainage Areas, Carlos Fix Miller, L. Douglas James
KWRRI Research Reports
The Kentucky Department of Highways, as do most other agencies which build small drainage structures, estimates flood peaks as the product of a runoff coefficient, a rainfall intensity, and the drainage area, Available procedures were applied to 39 gaged watersheds in and near Kentucky and compared with the results of frequency analysis of historical stream gage records. The methods consistently underestimated the flood peak.
Therefore, a more intensive study (using the Stanford Watershed Model) of the runoff coefficient was undertaken by dividing it into overland flow and streamflow components. A set of curves was developed based on the 50-year event …
The Effects Of Geographical And Climatic Setting On The Economic Advantages Of Alternative Flood Control Measures, Clyde R. Dempsey, L. Douglas James
The Effects Of Geographical And Climatic Setting On The Economic Advantages Of Alternative Flood Control Measures, Clyde R. Dempsey, L. Douglas James
KWRRI Research Reports
It has long been realized that tributary urban development and channel improvement greatly affect the flow regime in a given watershed. A previous study used the Stanford Watershed Model to derive relationships expressing how the flood peaks in Sacramento, California, might be expected to vary with changing conditions of urbanization, channelization, and tributary drainage area. In order to observe the effects of climatic setting and geographical location on these relationships, the same type of analysis was applied to a drainage area near Louisville, Kentucky.
If reservoir storage is to be considered in a flood control program, it is necessary to …
Esthetic And Recreational Potential Of Small Naturalistic Streams Near Urban Areas, John A. Dearinger, Kenneth R. Harper, L. Douglas James
Esthetic And Recreational Potential Of Small Naturalistic Streams Near Urban Areas, John A. Dearinger, Kenneth R. Harper, L. Douglas James
KWRRI Research Reports
The purpose of this study was to find a way to evaluate the esthetic and recreational potential of small streams and their watersheds. Research was limited to naturalistic streams with drainage areas under 100 square miles and located within 25 miles of a city. A methodology, based on some previous work of the U.S. Soil Conservation Service and the principles or concepts of terrain analysis, land use planning, value Judgment philosophy and the economics of outdoor recreation, was developed and applied in detail to two streams (Boone and Jessamine Creeks) near Lexington, Kentucky.
Evaluations were made of the streams' potential …
A Study Of The Removal Of Pesticides From Water, James David Whitehouse
A Study Of The Removal Of Pesticides From Water, James David Whitehouse
KWRRI Research Reports
The purpose of this study was to investigate some of the properties of pesticides as they exist in water, and to determine the effectiveness of several water treatment processes in the removal of pesticides from water. Among the pesticides investigated were malathion, DDT, aldrin, dieldrin, captan, benzene hexachloride (BHC), 2,4-D, and 2,4,5-T. The water treatment processes included aeration, chemical coagulation, adsorption on activated carbons and clays, and foam separation.
The removal of pesticides from water by aeration was found to be significant. Dieldrin was removed almost 100 percent, while aldrin, DDT, and BHC were removed to a lesser extent. 2, …
Factors Controlling Porosity And Permeability In The Curdsville Member Of The Lexington Limestone, William C. Macquown Jr., Jimmie L. Barr, George T. Hine, Jojok Sumartojo, Edward V. Peck, Franklin D. Thomas
Factors Controlling Porosity And Permeability In The Curdsville Member Of The Lexington Limestone, William C. Macquown Jr., Jimmie L. Barr, George T. Hine, Jojok Sumartojo, Edward V. Peck, Franklin D. Thomas
KWRRI Research Reports
Factors controlling the porosity and permeability of the Curdsville Limestone Member of the Lexington Limestone of Middle Ordovician Age in the Blue Grass Region of Kentucky are geological.
Microstratigraphic analysis had led to the division of the lower Lexington Limestone, consisting principally of the Curdsville Member into three beds which may be subdivided into "zones" made up of several lithologic types and sub-types. Lower, middle, and upper bed characteristics are helpful in determining the regional depositional history in the progressively transgressing Curdsville sea. Paleogeography of Curdsville time has been determined by delineation of two local facies: (1) a carbonate bank--shoal …
Derivation Of Reservoir Operating Rules By Economic Analysis, Charles O. Dowell
Derivation Of Reservoir Operating Rules By Economic Analysis, Charles O. Dowell
KWRRI Research Reports
The purpose of this study was to develop a methodology for determining an optimum set of reservoir operating rules specifying the of storage space based on the example of Rough River Reservoir, a Corps of Engineers project in Breckinridge and Grayson Counties, Kentucky, and assuming this multipurpose reservoir provides flood control, water supply, and recreation. The operating rules were derived by the method of marginal analysis which uses as its criteria achievement of maximum net benefits from the available storage capacity.
Benefit relationships were derived for each use. The variation of flood control benefits with available flood storage was determined …
Review Of The Economic Benefits And Costs Resulting From Dewey Reservoir, David H. Rosenbaum
Review Of The Economic Benefits And Costs Resulting From Dewey Reservoir, David H. Rosenbaum
KWRRI Research Reports
The purpose of this investigation was to study the economic effects of the construction of Dewey Reservoir in Floyd County, Kentucky. Primary emphasis was placed on determining the degree the project had shifted income to this economically underdeveloped area by determining the incomes of those receiving project benefits and those paying project costs. The income redistribution effects of all benefits and costs associated with Dewey Reservoir were evaluated by assuming that the Federal income tax structure indicates the marginal value of income to individuals in the various income brackets.
Major benefits from the Dewey Project have been: flood control, $722,166 …
The Effect Of Landowner Attitude On The Financial And The Economic Costs Of Acquiring Land For A Large Public Works Project, John Malvern Higgins Jr.
The Effect Of Landowner Attitude On The Financial And The Economic Costs Of Acquiring Land For A Large Public Works Project, John Malvern Higgins Jr.
KWRRI Research Reports
The purpose of this study was to examine the various economic and financial costs relating to the acquisition of property required for the construction of three reservoirs and to determine if any correlation could be made between the attitudes of the landowners selling property and the costs. Rough River Reservoir, Dewey Reservoir, and West Fork of Mill Creek Reservoir were studied. The costs involved in purchasing right-of-way were classified qualitatively and quantified to the extent possible. A procedure was devised to quantify 15 factors influencing attitude and an equation was derived to predict the landowner's attitude from these determining factors. …
Covariance Analysis Of Reservoir Development Effects On Property Tax Base, Claude M. Vaughan Jr.
Covariance Analysis Of Reservoir Development Effects On Property Tax Base, Claude M. Vaughan Jr.
KWRRI Research Reports
Much attention has been given in recent years to the development of water resources in the United States. Large scale multi-purpose dam and reservoir projects are of particular interest. Such projects are traditionally undertaken after the resulting benefit has been found to exceed the required cost. The benefits which are most readily evaluated are primary benefits such as flood control, hydroelectric power, and navigation. The purpose of this study is to investigate secondary benefits which accrue to local economies as a result of reservoir construction. The particular secondary benefit which this study evaluates is the reservoir impact on the local …
Analysis Of Reservoir Recreation Benefits, Robert Cecil Tussey Jr.
Analysis Of Reservoir Recreation Benefits, Robert Cecil Tussey Jr.
KWRRI Research Reports
Recreation visitation to two Kentucky reservoirs (Rough River and Dewey) constructed by the U.S. Army Corps of Engineers was studied to develop mathematical expressions for estimating numbers of visitors and recreation benefits. Regression analysis was used to relate characteristics of 168 origin areas (120 Kentucky counties, the District of Columbia, and the remaining states excluding Hawaii and Alaska) to visitation from that area to Rough River Reservoir. The resulting equations were then applied to Dewey to test their generality. Good results were obtained when only air distance and population were used as the independent variables. Correlations including the age and …
Economic Analysis Of Alternative Flood Control Measures By Digital Computer, Thomas M. Rachford
Economic Analysis Of Alternative Flood Control Measures By Digital Computer, Thomas M. Rachford
KWRRI Research Reports
The purpose of this project was to develop a digital computer program for selecting the optimum combination of flood proofing, flood-plain land use, channel improvement, and residual flood damage for a given floodplain. Based on economic efficiency, the optimum policy is selected for each planning unit of the total flood-plain for each period of time called a planning stage. The program was written in Fortran IV for the IBM 7040 and the University of Kentucky Computing Center compiler. The program requires about 23,000 words of core storage and about 30 seconds of execution time per planning-unit-stage for typical conditions. The …
Wild Life In Kentucky, William Delbert Funkhouser
Wild Life In Kentucky, William Delbert Funkhouser
Report of Investigations--KGS
The reptiles, birds and mammals of the Commonwealth, with a discussion of their appearance, habits and economic importance. Illustrated with ninety photographs, maps and diagrams.
Two images have been redacted for reasons related to NAGPRA, the Native American Graves Protection and Repatriation Act.