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Showing 1 to 20 of 845 for “"surface water"”.
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Predicting surface water profiles in sand
… concrete, sinkholes, buried utilities, the groundwater table, seepage through dams and determining the thickness of pavements. All of the applications depend on knowing the velocity of the EM wave through the material of interest. The velocity of EM waves through a vacuum is equivalent to the …
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DYNAMICS OF GLOBAL SURFACE WATER 1999 - PRESENT
Inland surface waters are critical to life, supplying fresh water and habitat, but are constantly in flux. There have been considerable advances in surface water monitoring over the last decade, though the extent of surface water has not been well-quantified per international reporting standards. …
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Surface Water Impacts from Active Underground Mining
… with this technology. Tools such as the Surface Deformation Prediction System (SDPS) facilitate sound scientific decision making in the industry and has continually improved since its inception in 1987. The capabilities of SDPS have expanded on an as-needed basis. Currently, the …
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Manganese removal from an organic-laden surface water
Manganese is a problem at the Ni River Water Treatment Plant in Spotsylvania County, Virginia. The Ni River Reservoir (the water source) is a eutrophic reservoir. In the summer, the dissolved oxygen decreases to near or zero at depths greater than two meters. As a result, soluble manganese …
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Quantitative precipitation forecasting (QPF) for surface water flood forecasting
… drainage system. The development of a dynamic surface water management system, based on the concept of Sustainable Urban Drainage System (SUDS) and coupled with a real-time extreme rainfall forecasting system, is currently in the design phase in the North Glasgow Area. Critical to the design's …
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Surface water flow resistance due to emergent wetland vegetation
… wetland type. Dense wetland vegetation affects surface water flow rates by increasing flow resistance. Prior research represented the vegetation as individual stems; however, many wetland species grow in clumps. Therefore, the objectives of this study were to investigate the effect of clumping …
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An improved geography of surface water abundance in lakes and reservoirs
The reserves of fresh water on the earth are of critical environmental and social importance. The great mass of liquid freshwater, which is readily accessible to human beings, resides in major surface stocks such as lakes, ponds, and reservoirs. Unfortunately, because of the extensive distribution …
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Processes controlling the behavior of LNAPLs at groundwater surface water interfaces
… processes pertaining to LNAPL releases at groundwater surface water interfaces (GSIs). Governing processes were investigated via laboratory studies and a preliminary analysis of forces controlling LNAPL occurrence in unsaturated media. A total of six laboratory sand tank experiments were …
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Evaluating surface water–groundwater interactions in floodplains using SWAT+ and gwflow
… and ecologic services. Within floodplains, surface water-groundwater exchange plays an important role in facilitating biogeochemical processing and can have a strong influence on hydrology through infiltration or discharge of water. These functions can be difficult to assess due to the …
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Developing groundwater and surface water interaction methods for complex hydrological systems
… and models associated with the interaction of surface-subsurface water flow have been widely employed in many environmental studies over the last decade. However, in spite of considerable effort, understanding the impact of both artificial and natural aspects of the connection between surface …
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Mechanisms Of Nanofilter Fouling And Treatment Alternatives For Surface Water Supplies
… solute mass transport in nanofiltration (NF) of surface waters. Fouling mechanisms as well as solute mass transport mechanisms and capabilities must be understood if NF of surface waters is to be successful. Nanofiltration of surface waters was evaluated at pilot-scale in conjunction with …
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Investigation of Groundwater- Surface-Water Interactions – Application to Leech Lake Aquifer,
… essential for socio-economic development, water resources are inevitable. Food, feed, and shelter requirements are growing rapidly with the increase in the population of our world and on the other hand water resources are becoming scarcer to fulfill these demands. Therefore, it is highly …
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Network Approach to Management of Conjunctively Operated Groundwater - Surface Water Systems
Made available in DSpace on 2014-12-10T22:22:09Z (GMT). No. of bitstreams: 1 7414548.pdf: 6321785 bytes, checksum: 795df9150dc47aaa79cf1085564f24de (MD5) Previous issue date: 1974
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Surface Water Quality and Aquatic Ecological Health in Central Appalachian Streams
… sources coexist in these Central Appalachian watersheds. Because of geographic isolation, many headwater communities lack proper sewerage and discharge directly into nearby waterways, compounding potential effects of upstream mining activities. Additionally, several legacy sites exist …
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Assessment of surface water availability in Solwezi River Basin, NothWestern Province, Zambia
This study assessed surface water availability in Solwezi River basin in Northwestern Province of Zambia. The main objective was to quantify various components of the water balance to ascertain surface water availability in Solwezi River Basin in view of the increasing water demand. Climate data …
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Assessment of surface water availability in Solwezi River Basin, NothWestern Province, Zambia
This study assessed surface water availability in Solwezi River basin in Northwestern Province of Zambia. The main objective was to quantify various components of the water balance to ascertain surface water availability in Solwezi River Basin in view of the increasing water demand. Climate data …
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