Physical Sciences and Mathematics Commons^™

Sampling Small Mammal Population In Curlew Valley Methodological Study, David F. Balph

Progress reports

No abstract provided.

Data Bank And Data Processing, Us/Ibp Analysis Of Ecosystems Desert Biome

Progress reports

No abstract provided.

Diets, Food Preferences And Reproductive Cycles Of Some Desert Mammals Process Study, Russell P. Balda, Gary C. Bateman, Terry A. Vaughan

Progress reports

No abstract provided.

Evaluation Of Techniques For Estimating Population Sizes In Desert Rodents Methodological Study, C. D. Jorgensen, H. D. Smith, D. T. Scott, H. D. Tolley

Progress reports

No abstract provided.

Productivity And Water Stress In Cacti Progress Report, Duncan T. Patten

Progress reports

No abstract provided.

Validation Studies At Locomotive Springs, Curlew Valley Validation Study, J. Anne Holman

Progress reports

No abstract provided.

Development Of Techniques For Estimating Biomass Of Desert Inhabiting Invertebrate Animals Methodological Study, Gordon L. Bender

Progress reports

No abstract provided.

Growth And Development Of Sitanion Hystrix Process Study, M. Hironaka, E. W. Tisdale

Progress reports

No abstract provided.

Validation Studies At Tucson, Arizona, David Hendricks, A. Neil Macgregor, E. Lendell Cockrum, Et Al

Progress reports

No abstract provided.

Soil Model -- Heat, Water, And Salt Flow, R. J. Hanks, D. D. Austin, W. T. Ondrechen

Progress reports

No abstract provided.

Development Of A Technique For Measuring The Water Balance Of Validation Study Areas Methodological Study, John Thames, H. Qashu, C. Kiesel

Progress reports

No abstract provided.

Ecosym-Climatic Classification, Stephen W. Zsiray Jr., Gene L. Wooldridge

Progress reports

No abstract provided.

The Jornada Validation Site (Playa- Nmsu Ranch) Validation Study, Walter G. Whitford, John Ludwig

Progress reports

No abstract provided.

Validation Studies At Deep Creek, Curlew Valley Validation Study, G. W. Minshall, F. L. Rose, D. A. Andrews, D. M. Shaw

Progress reports

No abstract provided.

Models Of Ingestion Rates For Desert Biome Rodents Process Study, Donald R. Johnson

Progress reports

No abstract provided.

Role Of Algae In Crust Formation In Desert Soils Process Studies, Raymond I. Lynn, Roy E. Cameron

Progress reports

No abstract provided.

Autecological Studies Of Atriplex Confertifolia And Eurotia Lanata Process Study, Martyn M. Caldwell, Neil E. West, Peter J. Goodman

Progress reports

No abstract provided.

The Behavior Of Pvc Pipe Under The Action Of Water Hammer Pressure Waves, Gary Z. Watters

Reports

Introduction: Hydraulic transients, commonly referred to as water hammer, occur in a hydraulic system whenver the velocity of flow in any one of the pipes in the system is caused to change. The magnitude of the pressure waves generated by a given change in velocity depends on the geometry of the pipe system, the magnitude of the velocity change and the elastic wave velocity in the system componenets. In turn, the elastic wave velocity depends on the modulus of elasticity of the fluid and the pipe material, the size and thickness of the pipe, the method by which the pipe …

A Computer Model Of The Quantity And Chemical Quality Of Return Flow, Jimmie L. Thomas, J. Paul Riley, Eugene K. Israelsen

Reports

A hybrid computer program is developed to predict the water and salt outflow from a river basin in which irrigation is the major water user. A chemical model which predicts the quality of water percolated through a soil profile is combined with a general hydrologic model into form the system simulation model. The chemical model considers the reactions that occur in the soil, including the exchange of calcium, magnesium, and sodium cations on the soil complex, and the dissolution and precipitation of gypsum and lime. The chemical composition of the outflow is a function of these chemical processes within the …

Development Of A Procedure For Determining Spacial And Time Variations Of Precipitation In Venezuela, Luis E. Ramirez

Reports

An analysis of the influence of the length of the record in the reliability of mean values of precipitation was made for the Caracus-Cagigal Station in Venezuela. Ten series of values were obtained for 10, 15, 20, 25, 30, and 35-year periods, extracted for sliding intervals for the overall record of 75 years. The reliability of mean values computer from Figure 3 was quite low for 10, 15, and 20- year periods. The long term record means had higher reliability, increasing with the number of years in the records, but the differences are not important in terms of accuracy. Precipitation …

Detergent And Non-Detergent Phosphorus In Sewage, Donald B. Porcella, E. J. Middlebrooks

Reports

Introduction: Quantitative data on nutrient levels in sewage from homes which are using heavy-duty detergents and which have been restrcited from using such detergents is necessary before rational decisions on the removal of phosphorus from detergetn can be made. Furthermore, the effect of various standard sewage treatment schemes on phosphorus levels should be evaluated to determine the relative cost of such treatment. Then the cost (to society, the environment, and to the taxpayer) of phosphorus removal from detergent and/or from sewage effluents can be estimated and such data utilized to make the appropriate policy decisions. The report herein presented is …

Water Resources Planning And Social Goals: Conceptualization Toward A New Methodology, D. Peterson, H. Caulfield, R. D'Arge, D. Gordon, M Marts, T. Roefs, R. Roelofs

Reports

A modeling concept relating water resource use to

The Effect Of Carbon On Algal Growth--Its Relationship To Eutrophication, Joel C. Goldman, Donald B. Porcella, Joe E. Middlebrooks, Daniel F. Toerien

Reports

Introduction: Natural and cultural eutrophication (enrichment with nutrients) frequnetly results in excessive algal growths thereby reducing the beneficial uses of surface waters (Hasler, 1947; Thomas, 1955, Edmondson et al., 1956, Oswald and Golueke, 1966, Skulberg, 1967, Mackenthun et al., 1968, Goldman and Armstrong, 1969, McGauhey et al., 1968,1969, 1970a, 1970b). Recent reviews emphsize that the prevention of further reduction in the quality of water resources requires the implementation of effective control measures (Goldman, 1965, Steward and Rohlich, 1967, Middlebrooks et al., 1969, Rohlich, 1969). Effective control of cultural eutrophication must involve the manipulation of those factors which affect algal growth, …

Application Of Operations Research Techniques For Allocation Of Water Resources In Utah, Calvin G. Clyde

Reports

In this report a methodology is described for determining the optimal allocation of water supplies in the State of Utah to minimize the cost of meeting an assumed set of water requirements. A linear programming model was formulated to represent the ten interconnected hydrologic study areas of the state. The comprehensive model considers virtually all uses, areas, sources, transfers and costs of water. The model has 204 constraints and 3378 variables and was solved by the simplex method. Included in the results are the following: the optimal water allocation or the groundwater, surface water, and water transfers which minimize the …

A Computerized Method Of Precipitation Data Quality Control, Ronald H. Campbell

Reports

A computerized data quality check and data edit program has been developed to aid in the processing of telemetered precipitation data. The logic considerations and program development are discussed and results are displayed. This effort has resulted in successful editing of large amounts of precipitation data gathered by automated remote data acquisition techniques. The application of this processing routine has resulted in reducing data editing costs to about three percent of that required to do the work manually.

Extending Utility Of Non-Urban Water Supplies, Jay M. Bagley

Reports

Extending the utility of an existing water supply in any river basin suggests a management-planning approach under three general guiding principles: (1) minimize depletions wherever possible (thereby maintaining a greater manageable quantity with subsequent potential to satisfy more uses); (2) generally preserve, protect, and improve water quality (thereby retaining its itility for use by a wider variety of potential users); and (3) make carefully considered allocations (thereby assuring multiples duty, more optimal sequencing, and shifts in use to conform to current and projected soil preferences). There are many technological and managerial techniques that can be employed to implement these principles. …

Instrumentation And Development Of Techniques To Measure And Evaluate Meteorological Parameters Important To Hydrology, Duane G. Chadwick

Reports

Hydro-meteorological instrumentation concepts are discussed. The necessity for an economic and reliable telemetering system is recognized and ways are shown how to achieve this objective. Particular discussion is given on total-precipitation and water-content-of-snow sensing. A method is also presented showing how to make isohyetal plots of telemetered precipitation information on an x-y plotter by use of a resistance paper method in conjunction with an analog computer.

Preliminary Indicators Of Income/Wealth Redistribution Associated With Bureau Of Reclamation Projects, Reed Willis, Allen Lebaron, Herbert Fullerton

Reports

Social well-being is an accepted subset of water investment feasibility criteria. Our attempt is to isolate income redistribution impacts conferred by the U.S. Bureau of Reclamation projects. Four project sites have been utilized to yield both pre and post project estimates of farm income and wealth. Production functions of the Cobb-Douglas type were estimated to yield information about factor shares, and thus enable inferences to be made about distribution of total product. Lorenz curves were developed to show changes in distribution of wealth and net income in terms of family enterprise, per acre, and per irrigated acre. Listing of individual …

Hydrologic Inventory Of The Weber River Study Unit, Frank W. Haws, Roland W. Jeppson, A. Leon Huber

Reports

The 1963 Utah State Legislature authorized the Utah Water and Power Board (now the Utah Division of Water Resources) to develop a state water plan in order to give coordination and direction to the activities of all state and federal agencies concerned with Utah's water resources. To facilitate the development of this plan, a proposal was submitted through the State Planning Coordinator in the Governor's Office to the Urban Renewal Administration of the Housing and Home Finance Agency. Funding was approved effective May 19, 1966, under the Urban Planning Assistance Program authorized by Section 701 of the Housing Act of …

Solutions Of The Problem Of Finding Confidence Intervals For The Two Normal Population With Unequal Variances, Ing-Haur Liu

All Graduate Plan B and other Reports, Spring 1920 to Spring 2023

Comparison of the means of two normal populations is a simpler problem when the variance (if unknown) are assumed to be equal than it is when they are not equal. The main concern of this report is the latter case also called the Behrens [4] - Fisher [5] problem.

In this report the solutions proposed by Behrens-Fisher, Scheffe [10], Welch [12], Banerjee [3] and Hajek [8], will be described and compared. To this problem Scheffe proposed a solution which has the advantage that no special table is necessary for its use, since the variate has an exact "Student's t" distribution. …