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Articles 10591 - 10620 of 11750
Full-Text Articles in Entire DC Network
Disposal Of Household Wastewater In Soils Of High Stone Content (1981-1983), E. M. Rutledge, C. R. Mote, D. T. Mitchell, M. S. Hirsch, M. D. Harper, H. D. Scott, C. L. Griffis
Disposal Of Household Wastewater In Soils Of High Stone Content (1981-1983), E. M. Rutledge, C. R. Mote, D. T. Mitchell, M. S. Hirsch, M. D. Harper, H. D. Scott, C. L. Griffis
Arkansas Water Resources Center Technical Reports
Four experimental filter fields were constructed with built-in monitoring equipment in Nixa soils. These soils contain many chert fragments and a fragipan about 60 cm below the soil surface. The fragipan restricts downward movement of water and is the designlimitingfeature. The four filter fields were: 1. A "standard" filter field, 76 cm deep. The bottom of the trench was in the fragipan. 2. A "modified standard" filter field, 30 cm deep. The bottom of the trench was above the fragipan. 3. A "modified pressure" filter field, 40 cm deep. The bottom of the trench was above the fragipan. In addition, …
Water Requirement For Coal Slurry Transportation, David T. Kao, Sandra L. Rusher
Water Requirement For Coal Slurry Transportation, David T. Kao, Sandra L. Rusher
KWRRI Research Reports
The amount of water required for coal slurry transportation is a function of the coal properties and the magnitude of coal movement. The pipeline system characteristics and the method of slurry preparation also affects the overall water requirement of the system. In the present study methodologies are developed based on reported and modified coal slurry flow correlation equations to determine the quantity of water needed under various coal transport and flow conditions. Auxiliary water requirements including start-up and flushing water storage; related evaporation and seepage losses are also included. A computer program and several monographs are presented to provide a …
Modeling Erosion On Long Steep Slopes With Emphasis On The Rilling Process, Michael C. Hirschi, Billy J. Barfield, Ian D. Moore
Modeling Erosion On Long Steep Slopes With Emphasis On The Rilling Process, Michael C. Hirschi, Billy J. Barfield, Ian D. Moore
KWRRI Research Reports
A model of soil erosion, known as KYERMO, is presented which emphasizes those processes which are important on steep slopes. Particular emphasis is placed on modeling rill development and geometry since this is the least understood process in erosion mechanics. The model requires an input rill pattern.
Rainfall inputs to the model require the use of breakpoint rainfall and kinetic energy. Surface storage is calculated based on random roughness data of Linden (1979). Infiltration is modeled by use of the two layer Green-Ampt-Mein-Larson model as proposed by Moore and Eigel (1981). Runoff is related to rainfall excess and surface storage …
Design, Construction, And Testing Of A Microprocessor-Controlled Interface Between Analog Geophysical Equipment And A Digital Cassette Recorder, Mohd. Nawawi Mohd. Nordin
Design, Construction, And Testing Of A Microprocessor-Controlled Interface Between Analog Geophysical Equipment And A Digital Cassette Recorder, Mohd. Nawawi Mohd. Nordin
Masters Theses
A Digital Data Acquisition System (DDAS) microcomputer was designed and constructed to interface between a six-channel analog seismograph and a digital cassette recorder. The DDAS microcomputer is a relatively inexpensive microcomputer built around the popular Z-80 microprocessor chip. It is portable and has 26K bytes of memory. It was designed to convert analog data in to digital with some processing performed before storing on the digital cassette recorder, for later analysis. The same hardware or circuitry of the DDAS microcomputer can perform other functions and work with other geophysical equipment by changing the software of the microcomputer.
Predicting Infiltration And Surface Runoff From Reconstructed Spoils And Soils, Larry G. Wells, Andrew D. Ward, Ronald E. Phillips
Predicting Infiltration And Surface Runoff From Reconstructed Spoils And Soils, Larry G. Wells, Andrew D. Ward, Ronald E. Phillips
KWRRI Research Reports
A laboratory system was fabricated to measure infiltration and runoff from spoil and soil profiles constructed in rectangular bins. Construction, calibration and operation of a rainfall simulator is discussed and instrumentation used to measure transient infiltration and transmittance of water through experimental profiles is described.
Spoil and soil materials from surface mines in Eastern and Western Kentucky were transported to the laboratory and used in constructing experimental profiles in rectangular bins (0.91 x 1.83 x 1.07 m). An extensive series of infiltration experiments were conducted utilizing a rainfall simulator and soil moisture monitoring instrumentation. A dual probe gamma density gauge …
Modeling Surface And Subsurface Stormflow On Steeply-Sloping Forested Watersheds, Patrick G. Sloan, Ian D. Moore, George B. Coltharp, Joseph D. Eigel
Modeling Surface And Subsurface Stormflow On Steeply-Sloping Forested Watersheds, Patrick G. Sloan, Ian D. Moore, George B. Coltharp, Joseph D. Eigel
KWRRI Research Reports
A simple conceptual rainfall-runoff model, based on the variable source area concept, was developed for predicting runoff from small, steep-sloped, forested Appalachian watersheds. Tests of the model showed that the predicted and observed daily discharges were in good agreement. The results demonstrate the ability of the model to simulate the "flashy" hydrologic behavior of these watersheds.
Five subsurface flow models were evaluated by application to existing data measured at Coweeta on a reconstructed homogeneous forest soil. The five models were: Nieber 's 2-D and 1-D finite element models (based on Richards' equation), the kinematic wave equation, and two simple storage …
Transboundary Groundwater Law: Focus On The U.S.-Mexico Boundary [Includes Appended Opinion In City Of El Paso Ex Rel. Pub. Serv. Bd. V. Reynolds, Civ. No. 80-730 Hb, 563 F. Supp. 279 (D.N.M. 1983)], Albert E. Utton
Groundwater: Allocation, Development and Pollution (Summer Conference, June 6-9)
48 pages.
Comparative Approaches To Groundwater Management, Robert D. Hayton
Comparative Approaches To Groundwater Management, Robert D. Hayton
Groundwater: Allocation, Development and Pollution (Summer Conference, June 6-9)
38 pages.
Problems Of Interstate Allocation Of Groundwater, Charles E. Corker
Problems Of Interstate Allocation Of Groundwater, Charles E. Corker
Groundwater: Allocation, Development and Pollution (Summer Conference, June 6-9)
41 pages.
Ground Water Monitoring System And Procedures At Kin-Buc I Landfill Middlesex County New Jersey, Dan D. Raviv
Ground Water Monitoring System And Procedures At Kin-Buc I Landfill Middlesex County New Jersey, Dan D. Raviv
Groundwater: Allocation, Development and Pollution (Summer Conference, June 6-9)
37 pages (includes illustrations and map).
Ogallala Ground Water, Morton W. Bittinger
Ogallala Ground Water, Morton W. Bittinger
Groundwater: Allocation, Development and Pollution (Summer Conference, June 6-9)
12 pages.
The San Luis Valley Groundwater Dispute, David Harrison, Jeris Danielson
The San Luis Valley Groundwater Dispute, David Harrison, Jeris Danielson
Groundwater: Allocation, Development and Pollution (Summer Conference, June 6-9)
25 pages (includes illustrations and map).
Groundwater Quality: The Issues, Remedies And Strategies, Kathleen M. Kulasza
Groundwater Quality: The Issues, Remedies And Strategies, Kathleen M. Kulasza
Groundwater: Allocation, Development and Pollution (Summer Conference, June 6-9)
34 pages.
Subsidence Of Land Caused By Ground-Water Pumping, Thomas L. Holzer
Subsidence Of Land Caused By Ground-Water Pumping, Thomas L. Holzer
Groundwater: Allocation, Development and Pollution (Summer Conference, June 6-9)
22 pages (includes illustration).
Contains references (pages 2-6).
Agenda: Groundwater: Allocation, Development And Pollution, University Of Colorado Boulder. Natural Resources Law Center
Agenda: Groundwater: Allocation, Development And Pollution, University Of Colorado Boulder. Natural Resources Law Center
Groundwater: Allocation, Development and Pollution (Summer Conference, June 6-9)
Even before the [Natural Resources Law] Center was established [in the fall of 1981], the [University of Colorado] School of Law was organizing annual natural resources law summer short courses. To date four programs have been presented:
- July 1980: "Federal Lands, Laws and Policies-and the Development of Natural Resources"
- June 1981: "Water Resources Allocation: Laws and Emerging Issues"
- June 1982: "New Sources of Water for Energy Development and Growth: lnterbasin Transfers"
- June 1983: "Groundwater: Allocation; Development and Pollution"
(Reprinted from Resource Law Notes, no. 1, Jan. 1984, at 1.)
University of Colorado School of Law professors …
Legal Systems For Allocating Groundwater And Controlling Its Extraction, Charles F. Wilkinson
Legal Systems For Allocating Groundwater And Controlling Its Extraction, Charles F. Wilkinson
Groundwater: Allocation, Development and Pollution (Summer Conference, June 6-9)
22 pages (includes illustration).
Contains research sources list (pages 1-2).
Hydrology: Unraveling The Mysteries Of Groundwater Occurrence And Movement, Thomas M. Stetson
Hydrology: Unraveling The Mysteries Of Groundwater Occurrence And Movement, Thomas M. Stetson
Groundwater: Allocation, Development and Pollution (Summer Conference, June 6-9)
31 pages (includes illustrations).
Glossary omitted.
The Geology Of Maine's Coastline : A Handbook For Resource Planners, Developers, And Managers, Maine State Planning Office
The Geology Of Maine's Coastline : A Handbook For Resource Planners, Developers, And Managers, Maine State Planning Office
Maine Collection
The Geology of Maine's Coastline : A Handbook for Resource Planners, Developers, and Managers
Executive Department, Maine State Planning Office, Augusta, Maine, June 1983.
Contents: List of Figures / Introduction: The Geological Connection / Chapter 1: Using the Marine Environments Maps / Chapter 2: Perspectives of the Maine Coast / Chapter 3: The Building Blocks of Maine's Coast / Chapter 4: The Disappearing Shoreline / Where to Go for Help / Some Planning Considerations for Development in Coastal Geologic Environments / Land Use Laws of Special Interest to Individual Coastal Property Owners
Movement Of Bacteria Through Macropores To Ground Water, M. Scott Smith, Grant W. Thomas, Robert E. White
Movement Of Bacteria Through Macropores To Ground Water, M. Scott Smith, Grant W. Thomas, Robert E. White
KWRRI Research Reports
Effects of soil type, flow rate, antecedent soil moisture and other factors on transport of E. coli through soils was measured on disturbed and intact columns 20 cm in diameter by 25 to 30 cm in depth. Added E. coli were distinguished from indigenous microbes using an antibiotic resistance marker. Transport of Cl- and 3H2O was also measured. Up to 96 percent of the bacteria irrigated onto the surface of intact columns were recovered in the effluent. Soil structure appeared to be related to the extent of transport. Columns prepared from mixed, repacked soil were much …
Effects Of Surface Application Of Dairy Manure On The Infiltration Rate And Quality Of Surface Runoff, Joseph L. Taraba, I. J. Ross, John D. Bottom, Bill J. Barfield
Effects Of Surface Application Of Dairy Manure On The Infiltration Rate And Quality Of Surface Runoff, Joseph L. Taraba, I. J. Ross, John D. Bottom, Bill J. Barfield
KWRRI Research Reports
Dairy manure was surface spread on 12 ft x 12 ft plots on an established fescue pasture in the summer and fall of 1981 and 1982. The soil was a Maury silt loam. A simulated rainfall was applied to plots to test the effects of nitrogen loading rate (75, 150, and 300 #N/acre) time delay between manure application and the simulated rainfall events (0, 3, 6, 24, 48, 96 hours and a 120 hour test repeated on 0 hr plot with 300 #N/acre), and type manure (semi-solid - 1981 and liquid - 1982) on the concentrations of pollutants in the …
Disposal Of Household Wastewater In Soils Of High Stone Content (1977-1980), E. M. Rutledge, C. R. Mote, M. S. Hirsh, H. D. Scott, D. T. Mitchell
Disposal Of Household Wastewater In Soils Of High Stone Content (1977-1980), E. M. Rutledge, C. R. Mote, M. S. Hirsh, H. D. Scott, D. T. Mitchell
Arkansas Water Resources Center Technical Reports
Two experimental septic tank filter fields were constructed with built-in monitoring equipment in Nixa soils. These soils contain many chert fragments and a fragipan about 60 cm deep which restricts downward water movement and is the design-limiting feature. The standard filter field (76 cm deep) was built into the fragipan and the modified standard filter field (30 cm deep) was placed above it. During 30 months' observation, the modified standard performed better than the standard filter field. Maximum rise of effluent in the standard and modified standard came within 11 and 19 cm of the soil surface, respectively. Performance of …
Input And Distribution Of Sewage Derived Sedimentary Material Adjacent To Chesapeake-Elizabeth Sewage Outfall, Virginia Beach, Virginia, Robert Carroll Brown
Input And Distribution Of Sewage Derived Sedimentary Material Adjacent To Chesapeake-Elizabeth Sewage Outfall, Virginia Beach, Virginia, Robert Carroll Brown
OES Theses and Dissertations
The concentrations of coprostanol and hydrocarbons were measured in the effluent from the Chesapeake-Elizabeth sewage treatment plant and surface sediments from the area surrounding the effluent discharge site. Most of the coprostanol (>84%) and hydrocarbons (>91%) were associated with particulates in the effluent. Some of these particles were incorporated into the sedimentary column within the study area, while some may have escaped from the area.
The study area is found to be a dynamic area where changes in the percentage and distribution of fine-grained sediments occur over periods of months. The movement of fine-grained sediments is an important …
Forage Moisture Testers, George Turner, Doug Overhults
Forage Moisture Testers, George Turner, Doug Overhults
Kentucky Alfalfa and Stored Forage Conference
The quality of forage used for feed is affected by the moisture content at which it was harvested and stored. To guess moisture content from experience or by hand squeezing and wadding is not accurate enough for today's methods of putting up hay, haylage or silage.
There are several very accurate and rapid types of sophisticated moisture indicators used in various industries, but these are too complex and costly to be considered for portable use by farmers. Other smaller instruments are also available that do a less accurate but acceptable job of determining moisture content of forage. One of these …
Bibliography Of Nebraska Geology, 1843-1976, John H. Sandy, Jay Fussell
Bibliography Of Nebraska Geology, 1843-1976, John H. Sandy, Jay Fussell
Conservation and Survey Division: Faculty and Staff Publications
Preface
The computer brightened the 1970s considerably by giving researchers a tool for storing, retrieving and manipulating electronically sizable blocks of literary material on a single subject. which would otherwise have cost researchers years of scholarly investigation to bring together. It was in such a propitious moment mat we set out to assemble this state bibliography as an aid to scholars, researchers. scientists, teachers, writers, editors, and decision makers in the earth sciences, universities, and all levels of government.
As we collected, compiled, and checked citations for this bibliography, we relied heavily on the following standard sources that have indexed …
Drainage Basin Characteristics Of The Minnesota River, Paul Fasching
Drainage Basin Characteristics Of The Minnesota River, Paul Fasching
Journal of the Minnesota Academy of Science
The geomorphology of the Minnesota River Basin is poorly understood, yet much of modern fluvial ecology requires this information as a prerequisite to physical, chemical, or biological studies. The purpose of this paper is to provide background descriptive geomorphological river basin data for the Minnesota River. Eleven descriptive parameters (river gradient, Form f, Shape 1, Shape 2, circularity ratio, elongation ration, stream order, bifurcation ratio, average area by order, number of lakes per order and number of lower order streams entering higher streams) were determined for the Minnesota River Basin as a whole as well as for ten subbasins. A …
Interagency Hazard Mitigation: 90-Day Post Flood Recovery Progress Report, Hazard Mitigation Team (Utah)
Interagency Hazard Mitigation: 90-Day Post Flood Recovery Progress Report, Hazard Mitigation Team (Utah)
Elusive Documents
As a result of an extended period of abnormally high precipitation, prolonged snow melt, and subsequent high water tales, Utahns, in 1983 suffered from landslides, debris flows, flooding, and a dam failure. On April 30, 1983, the President determined the Spanish Fork slide-dam and Thistle flood covering Utah, Carbon, and Emery Counties was of sufficient seventy and magnitude to issue a Major Disaster Declaration under Public Law 93-288. The incident period was not closed until July 1, 1983. By the time all flooding had ceased, nineteen additional counties (over 75% of Utah) had been included in the Declaration.
Coal Hydrology Bibliography, United States Bureau Of Land Management
Coal Hydrology Bibliography, United States Bureau Of Land Management
All U.S. Government Documents (Utah Regional Depository)
In compiling this bibliography, Geological Survey publication lists, existing Geological Survey bibliographies, and the Water Resources Scientific Information Center (WRSIC) data base were searched for pertinent Geological Survey publications that contained information relevant to the hydrology of a coal area. The WRSIC abstracts were used unedited as received from the WRSIC data base. Also included are reports of the Energy Mineral Rehabilitation Inventory and Analysis (EMRIA) program, coal leasing environmental impact statements and environmental analysis reports, and Bureau of Land Management land-use planning documents containing information about coal hydrology. Only those documents authored by either the Geological Survey or the …
Fireline Production: A Conceptual Model, United States Department Of Agriculture, Forest Service
Fireline Production: A Conceptual Model, United States Department Of Agriculture, Forest Service
Wildfires
This report describes a conceptual model that provides a framework for the components of fireline production. Other conceptual or operational fire-related models may be linked with this production model. Major components and relationships are diagramed.
Land Resource Survey Report Of The Brigadoon Development Proposal, M R. Wells
Land Resource Survey Report Of The Brigadoon Development Proposal, M R. Wells
Resource management technical reports
No abstract provided.
Ua66/8/3 Annual Report, Wku Geography & Geology
Ua66/8/3 Annual Report, Wku Geography & Geology
WKU Administration Documents
Annual report of activities of the WKU department of Geography & Geology.