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Full-Text Articles in Physical Sciences and Mathematics

Slides: An Update On Management Of The Northern Ogallala, Raymond J. Supalla Jun 2004

Slides: An Update On Management Of The Northern Ogallala, Raymond J. Supalla

Groundwater in the West (Summer Conference, June 16-18)

Presenter: Raymond Supalla, Department of Agricultural Economics, University of Nebraska.

37 slides.


Agenda: Groundwater In The West, University Of Colorado Boulder. Natural Resources Law Center Jun 2004

Agenda: Groundwater In The West, University Of Colorado Boulder. Natural Resources Law Center

Groundwater in the West (Summer Conference, June 16-18)

Conference moderators and/or speakers included University of Colorado School of Law professors James N. Corbridge, Jr., Douglas S. Kenney, Jim Martin and Kathryn M. Mutz.

The Colorado Law Natural Resources Law Center celebrated its 25th Annual Summer Conference by exploring one of the most important natural resources of the 21st century: groundwater. Titled "Groundwater in the West," the conference was held June 16-18 at the Fleming Law Building on the University of Colorado at Boulder campus. Participants discussed law, policy, and management of groundwater in the West. "As demands on surface water increase and drought seems more the norm than …


Assessment Of Surface Water Runoff And Groundwater Recharge Using Mathematical Models, Khaled Omar Mohamed Haroon Jun 2004

Assessment Of Surface Water Runoff And Groundwater Recharge Using Mathematical Models, Khaled Omar Mohamed Haroon

Accounting Dissertations

In and semi-arid regions, surface water resources are scarce and, in most cases, groundwater is the onlynatural resource of freshwater. Pumping of groundwater often exceeds natural recharge. Therefore,groundwater level are declining and its quality is deteriorating. Sustainable management of groundwater is thus a key Issue and requires implementation of appropriate technologies to augment ground water resources. Artificial recharge augments the natural movement of surface water into the underground form' illations using some means of construction whereby surface water from streams or lakes is made to infiltrate into the ground.

The UAE is known by its arid conditions and limited …


Assessment Of Surface Water Runoff And Groundwater Recharge Using Mathematical Models, Khaled Omer Mohamed Haroon Jun 2004

Assessment Of Surface Water Runoff And Groundwater Recharge Using Mathematical Models, Khaled Omer Mohamed Haroon

Theses

In arid and semi-arid regions, surface water resources are scarce and, in most cases, groundwater is the only natural resource of freshwater. Pumping of groundwater often exceeds natural recharge. Therefore, groundwater levels are declining and its quality is deteriorating. Sustainable management of groundwater is thus a key issue and requires implementation of appropriate technologies to augment groundwater resources. Artificial recharge augments the natural movement of surface water into the underground formations using some means of construction whereby surface water from streams or lakes is made to infiltrate into the ground.

The UAE is known by its arid conditions and limited …


A Concept Of Maximum Stream Depletion Rate For Leaky Aquifers In Alluvial Valleys, Vitaly A. Zlotnik Jun 2004

A Concept Of Maximum Stream Depletion Rate For Leaky Aquifers In Alluvial Valleys, Vitaly A. Zlotnik

Department of Earth and Atmospheric Sciences: Faculty Publications

Existing analytical models for evaluating stream depletion by wells in alluvial aquifers are based on the assumption that stream depletion supplies 100% of groundwater withdrawals. Analysis of specific hydrostratigraphic conditions in leaky aquifers indicates that stream depletion may range from 0 to 100%. A new concept of maximum stream depletion rate (MSDR) is introduced and defined as a maximum fraction of the pumping rate contributed by the stream depletion. Several new analytical solutions indicate that the MSDR is determined by aquifer hydrostratigraphic conditions, geometry of recharge and discharge zones, and locations of pumping wells.


Groundwater Trends In The North Stirling Pallinup Sub-Region, Ruhi Ferdowsian, Lisa Crossing Jun 2004

Groundwater Trends In The North Stirling Pallinup Sub-Region, Ruhi Ferdowsian, Lisa Crossing

Natural resources published reports

The South Coast Regional Initiative Planning Team (SCRIPT) has divided the South Coast region of Western Australia into six sub-regions. This publication describes the groundwater trends, risk of shallow watertables, and technical feasibility of salinity management in the agricultural district of the North Stirling Pallinup sub-region.

This sub-region encompasses the Stirling Range National Park, the North Stirling Basin to the north-east of the Park, and the middle and upper catchments of the Pallinup River. Almost 90% (500,000 ha) of the sub-region's alienated land has been cleared for agriculture, and salinity has been identified as an important issue.

Soil-landscape zones are …


Groundwater Trends In The Fitzgerald Biosphere Sub-Region, Adam Lillicrap Jun 2004

Groundwater Trends In The Fitzgerald Biosphere Sub-Region, Adam Lillicrap

Natural resources published reports

The South Coast Regional Initiative Planning Team (SCRIPT) has divided the South Coast region into six sub-regions. The Fitzgerald Biosphere sub-region is located in the centre of the South Coast region of Western Australia (Figure 1). It is bounded by the Pallinup River to the east, Jerdacuttup River to the west, and includes the catchments of the Gairdner, Fitzgerald and Phillips Rivers. The sub-region encompasses the Fitzgerald Biosphere Reserve and just over half (730,000 ha) has been cleared for agriculture.

This publication describes the groundwater trends, risk of shallow watertables, and technical feasibility of salinity management in the soil landscape …


Slides: Lessons From The Pinedale Anticline Adaptive Management Process, Peter Aengst May 2004

Slides: Lessons From The Pinedale Anticline Adaptive Management Process, Peter Aengst

Best Management Practices and Adaptive Management in Oil and Gas Development (May 12-13)

Presenter: Peter Aengst, Regional Associate, The Wilderness Society, Northern Rockies Office

24 slides


Groundwater Study Of The Narrogin Townsite, Edward K. Crossley Mar 2004

Groundwater Study Of The Narrogin Townsite, Edward K. Crossley

Resource management technical reports

A groundwater study was carried out in the townsite of Narrogin, Western Australia, in April 2002. The study consisted of a drilling program to install a network of groundwater monitoring bores. This report contains background information for the town and its catchment, the climatic, geological and hydrogeological investigations, and conclusions on the town's salinity risk and recommendations for improved water management.


Groundwater Trends In The Central Agricultural Region, S Ghauri Mar 2004

Groundwater Trends In The Central Agricultural Region, S Ghauri

Resource management technical reports

This report provides an update of groundwater data and interpretation for each of the hydrozones of the central agricultural region in Western Australia.


Yucca Mountain Climate Technical Support Representative, Saxon E. Sharpe, Dick Reinhardt, Eric Smistad, Don Baepler, Amy J. Smiecinski Feb 2004

Yucca Mountain Climate Technical Support Representative, Saxon E. Sharpe, Dick Reinhardt, Eric Smistad, Don Baepler, Amy J. Smiecinski

Publications (YM)

The principal investigator (PI), Saxon Sharpe, for Task ORD-FY04-012, DOE Cooperative Agreement DE-FC28-04RW12232, will serve as Yucca Mountain Climate Technical Support Representative for the Department of Energy (DOE) in a series of activities related to past, present, and future climate for the Yucca Mountain Project (YMP) climate program.

As stated in the Viability Assessment of a Repository at Yucca Mountain: “Climate and its changes over time directly affect system performance at Yucca Mountain.” Currently, information from climate studies is used in models that support the Total System Performance Assessment and Licensing Application. It is a model component of all key …


Geomorphic And Environmental Change Around A Large, Aging Reservoir: Lake C. W. Mcconaughy, Western Nebraska, Usa, R. Matthew Joeckel, Robert F. Diffendal Jr. Feb 2004

Geomorphic And Environmental Change Around A Large, Aging Reservoir: Lake C. W. Mcconaughy, Western Nebraska, Usa, R. Matthew Joeckel, Robert F. Diffendal Jr.

Robert F. Diffendal, Jr., Publications

Lake C. W. McConaughy, a 63-year-old manmade reservoir in the North Platte Valley of western Nebraska, is the largest standing body of water in the state. From the time that Kingsley Dam was completed in 1941 until the present day (2004), many geomorphic and environmental changes have occurred along the shores and within the North Platte Valley. Erosion on the southeastern shoreline of the lake had been perceived as a problem for landowners and managers for at least three decades, but the full scale of erosion was revealed only after a cumulative 18-m drawdown in lake level: bedrock platforms, extending …


Narrogin Townsite Test Pumping Results 2003, Louise Hopgood Feb 2004

Narrogin Townsite Test Pumping Results 2003, Louise Hopgood

Resource management technical reports

Test pumping of a production bore in Narrogin took place for 24 hours in August 2003. Data generated by the test pumping was analysed along with groundwater monitoring, climate and geological data. Laboratory analyses of water samples from the production bore indicate very high levels of salinity and hardness which may lead to severe scaling and corrosion of pumps, pipes and pipe fittings.


Groundwater Study Of The York Townsite, Edward K. Crossley, Department Of Agriculture, Western Australia. Rural Towns Program Jan 2004

Groundwater Study Of The York Townsite, Edward K. Crossley, Department Of Agriculture, Western Australia. Rural Towns Program

Resource management technical reports

A groundwater study was carried out in the townsite of York in April-May 2002. The prupose was to collect information on local groundwater systems that could be used to develop a salinity management strategy. The study included a driling program, which established a network of monitoring bores. Seventy-seven monitoring bores were installed at 32 sites as well as a production bore for testing aquifer properties.


Merredin Townsite Groundwater Pumping And Desalination Pilot Project, Rosemary Nott, Mark Pridham, Juana Roe, Jeff Ibbott, Alan Leeson, A Leeson Jan 2004

Merredin Townsite Groundwater Pumping And Desalination Pilot Project, Rosemary Nott, Mark Pridham, Juana Roe, Jeff Ibbott, Alan Leeson, A Leeson

Resource management technical reports

Townsite salinity affects more than 40 towns in the WA wheatbelt. Waterlogging and salinity are responsible for damamge to townsite infrastructure. Through groundwater pumping and desalination, the State Salinity Council (now the Natural Resource Management Council) granted Merredin the the chance to prevent further damage to the townsite by funding this project.


Bremer-Gairdner Catchment Appraisal Report 2003, Tim D. Overheu Jan 2004

Bremer-Gairdner Catchment Appraisal Report 2003, Tim D. Overheu

Resource management technical reports

Assessment of the condition and future risks to agricultural and natural resources within the Bremer-Gairdner region in Western Australia using the Rapid Catchment Appraisal. Details include climate, geology, soil-landscape information, hydrology, waterways, wetlands and estuaries, natural vegetation, land use and infrastructure, agricultural production, demographics; soil degredation risks, hydrology risks, farming system impacts, vegetation condition and risks, infrastructure assets; and management options.


Kellerberrin Townsite Test Pumping Results 2003, Louise Hopgood Jan 2004

Kellerberrin Townsite Test Pumping Results 2003, Louise Hopgood

Resource management technical reports

A production bore in Kellerberrin, Western Australia, was test pumped for 24 hours in August 2003. Data generated by the pumping were analysed with groundwater monitoring, climate and geological data. Laboratory analyses of water samples from the production bore indicate a low pH and very high levels of salinity, hardness, sodium, chloride, iron, sulphate, aluminium and manganese. This is likely to lead to scaling, blockages, staining and/or corrosion of pumps, pipes and pipe fittings.


Groundwater Investigation Buntine-Marchagee Natural Diversity Recovery Catchment, Russell John Speed, M Strelein Jan 2004

Groundwater Investigation Buntine-Marchagee Natural Diversity Recovery Catchment, Russell John Speed, M Strelein

Resource management technical reports

A groundwater investigation was initiated in the Buntine-Marchagee Natural Diversity Recovery Catchment 200 kms north-east of Perth, Western Australia in 2002. The investigation aimed to install a regional groundwater monitoring network and characterise the regolith throughout the catchment. Drill site selection was based on establishing a series of transects to enable construction of hydrogeological cross-sections to enhance conceptual understanding of the catchment.


Evaporation Basin Guidelines For Disposal Of Saline Water, Jda Consultant Hydrologists, Edward Hauck Jan 2004

Evaporation Basin Guidelines For Disposal Of Saline Water, Jda Consultant Hydrologists, Edward Hauck

Agriculture reports

The purpose of this guideline is to provide information and criteria for evaporation basin planning, design, construction, monitoring, and maintenance for purposes of disposal of water and storage of disposed salts in dryland agricultural areas of Western Australia. The application of the guidelines will assist in the management of saline discharge and the protection of natural resources. The guidelines have been tailored specifically for saline evaporation disposal sites located in the wheatbelt areas of Western Australia.


Infill Groundwater Study Of The Quairading Townsite, S Ghauri Jan 2004

Infill Groundwater Study Of The Quairading Townsite, S Ghauri

Resource management technical reports

An infill groundwater study of Quairading in Western Australia was carried out as part of the Rural Towns Program Community Bores Project to clarify reasons for localised moisture accumulation in buildings.


Groundwater-Level Changes In Nebraska - Spring 2002 To Spring 2003/Groundwater-Level Changes In Nebraska - Predevelopment To Spring 2003, Conservation Survey Division Jan 2004

Groundwater-Level Changes In Nebraska - Spring 2002 To Spring 2003/Groundwater-Level Changes In Nebraska - Predevelopment To Spring 2003, Conservation Survey Division

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Testing Density-Dependent Groundwater Models: Two-Dimensional Steady State Unstable Convection In Infinite, Finite And Inclined Porous Layers, Douglas Weatherill, Craig T. Simmons, Clifford I. Voss, Neville I. Robinson Jan 2004

Testing Density-Dependent Groundwater Models: Two-Dimensional Steady State Unstable Convection In Infinite, Finite And Inclined Porous Layers, Douglas Weatherill, Craig T. Simmons, Clifford I. Voss, Neville I. Robinson

United States Geological Survey: Staff Publications

This study proposes the use of several problems of unstable steady state convection with variable fluid density in a porous layer of infinite horizontal extent as two-dimensional (2-D) test cases for density-dependent groundwater flow and solute transport simulators. Unlike existing density-dependent model benchmarks, these problems have well-defined stability criteria that are determined analytically. These analytical stability indicators can be compared with numerical model results to test the ability of a code to accurately simulate buoyancy driven flow and diffusion. The basic analytical solution is for a horizontally infinite fluid-filled porous layer in which fluid density decreases with depth. The proposed …


Groundwater Trends In The Kent-Frankland Sub-Region, Arjen Ryder Jan 2004

Groundwater Trends In The Kent-Frankland Sub-Region, Arjen Ryder

Natural resources published reports

The South Coast Regional Initiative Planning Team (SCRIPT) has divided the South Coast region of Western Australia into six sub-regions. Kent-Frankland covers the catchments of the Frankland, Gordon and Kent' Rivers. Approximately two-thirds (450,000 ha) has been cleared for agriculture. This publication describes the groundwater trends, risk of shallow watertables, and technical feasibility of salinity management on agricultural land.

Soil-landscape zones are spatial units based on geology and geomorphology. Since most groundwater processes in WA are controlled by the geologic and regolith properties, these zones can be used for allocating hydrological attributes, such as groundwater characteristics and trends. The hydrological …


Groundwater Trends In The Esperance Sandplain And Mallee Sub-Regions, John Andrew Simons, A Alderman Jan 2004

Groundwater Trends In The Esperance Sandplain And Mallee Sub-Regions, John Andrew Simons, A Alderman

Agriculture reports

The South Coast Regional Initiative Planning Team (SCRIPT) has divided the South Coast region of Western Australia into six sub-regions. The Esperance Sandplain and Mallee subregions encompass the Esperance agricultural district, which contains about 1.5 million hectares of agricultural land. This publication describes the groundwater trends, risk of shallow watertables, and technical feasibility of salinity management in the soil-landscape zones within the Esperance agricultural district.


Groundwater Trends In The Albany Hinterland Sub-Region, Arjen Ryder Jan 2004

Groundwater Trends In The Albany Hinterland Sub-Region, Arjen Ryder

Natural resources published reports

The South Coast Regional Initiative Planning Team (SCRIPT) has divided the South Coast region of Western Australia into six sub-regions The Albany Hinterland is in the western portion (see Figure 1). It is bounded by the Pallinup River in the east. Stirling Ranges to the north and the Kent River catchment boundary in the west. Two-thirds (580.000 ha) of the sub-region has been cleared for agriculture This publication describes the groundwater trends, risk of shallow watertables, and technical feasibility of salinity management within the agricultural land

Soil-landscape zones are spatial units based on geology and geomorphology. Since most groundwater processes …


Potential Contaminants At A Dredged Spoil Placement Site, Charles City County, Virginia, As Revealed By Sequential Extraction, Jianwu Tang, G. Richard Whittecar, Karen H. Johannesson, W. Lee Daniels Jan 2004

Potential Contaminants At A Dredged Spoil Placement Site, Charles City County, Virginia, As Revealed By Sequential Extraction, Jianwu Tang, G. Richard Whittecar, Karen H. Johannesson, W. Lee Daniels

OES Faculty Publications

Backfills of dredged sediments onto a former sand and gravel mine site in Charles City County, VA may have the potential to contaminate local groundwater. To evaluate the mobility of trace elements and to identify the potential contaminants from the dredged sediments, a sequential extraction scheme was used to partition trace elements associated with the sediments from the local aquifer and the dredged sediments into five fractions: exchangeable, acidic, reducible, oxidizable, and residual phases. Sequential extractions indicate that, for most of the trace elements examined, the residual phases account for the largest proportion of the total concentrations, and their total …


Groundwater Test Pumping In The Tambellup Townsite, Louise Hopgood Dec 2003

Groundwater Test Pumping In The Tambellup Townsite, Louise Hopgood

Resource management technical reports

Previous studies have concluded that the township of Tambellup is underlain by a perched aquifer. Test pumping and groundwater modelling indicated that groundwater pumping may be an effective way of protecting townsite infrastructure by lowering the water table beneath the town. This report presents results of the test pumping and provides likely bore yields, prediction of pumping influence and likely optimum production bore spacing.


Precipitation Monitoring At Yucca Mountain From 10/01/2000 Through 06/30/2003, Amanda Brandt, Klaus J. Stetzenbach, Amy J. Smiecinski Nov 2003

Precipitation Monitoring At Yucca Mountain From 10/01/2000 Through 06/30/2003, Amanda Brandt, Klaus J. Stetzenbach, Amy J. Smiecinski

Publications (YM)

This report presents precipitation data collected using tipping bucket rain gauges in the vicinity of Yucca Mountain from October 1, 2000 to June 30, 2003. Operation of the tipping bucket precipitation monitoring network was assumed by the Harry Reid Center for Environmental Studies at University of Nevada, Las Vegas in March 2001. Previously, it had been operated by the U.S. Geological Survey. The precipitation monitoring network consists of 17 tipping bucket gauges at various locations in the vicinity of Yucca Mountain. During the 2001 water year, rainfall averaged 6.16 inches. The following 2002 water year was much drier averaging 1.11 …


Groundwater Investigation On Victoria Location 8565, East Binnu, Russell John Speed Nov 2003

Groundwater Investigation On Victoria Location 8565, East Binnu, Russell John Speed

Resource management technical reports

Describes a drilling investigation undertaken for the East Binnu area within Victoria location 8565, Western Australia. Groundwater monitoring bores were installed to assess the risk of dryland salinity developing if after clearance of native vegetation, the area is used to grow annual crops and pastures. The investigation confirmed that the risk of further salinity development in this location is extreme.


Moore River : Catchment Appraisal 2003, A Alderman, M Clarke, Natural Heritage Trust (Australia), Moore River Catchment Support Team (Wa) Oct 2003

Moore River : Catchment Appraisal 2003, A Alderman, M Clarke, Natural Heritage Trust (Australia), Moore River Catchment Support Team (Wa)

Resource management technical reports

Using the Rapid Catchment Appraisal process, this report summarises current information for the Moore River catchment, Western Australia. The headwaters of the Moore River commence in Perenjori, Carnamah and Dalwallinu shires and drain southwards through Moora.