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A Review of Fluid Movement in Compacted Clay: The Case of Macropore Flow
In constructing natural hydraulic barriers to infiltration, a typical design is one founded on the use of layers of compacted clay. Unfortunately, in analyzing the hydraulic performance...

Simulation of the Propagation of Conserevative Contamination
The hydrodynamic model of the pollutant transport in water bodies was developed and adopted for Volga water supply system of Moscow, which includes five reservoirs and a channel. The model...

Predicting Basin-Wide Tailwater Temperature Patterns by Combining Mechanistic and Statistical Water Quality Modeling
A simplified method for predicting water temperature patterns downstream of a peaking hydropower dam is described for the Fort Randall Dam tailwater of the mainstem Missouri River as part...

Water Quality Modeling of Lower Green Bay
The impact upon water quality of the planned expansion of a confined disposal facility (CDF) located in lower Green Bay was studied using numerical hydrodynamic and water quality models....

Survey of GIS Applications in Surface Water Hydrology
Geographic information systems (GIS), computerized tools for management and manipulation of spatially referenced data, are increasingly being used for engineering analysis and design of...

An Operational GIS to Support State-Wide Hydrologic and Nonpoint Pollution Modeling
A geographic information system(GIS) that is structured for hydrologic and nonpoint pollution modeling(GISHYDRO) became operational in the Maryland State Highway Administration's Division...

New Directions in Integrated Hydrologic Modeling with GIS
In 1988, the Florida Institute of Phosphate Research funded a project to develop an integrated hydrologic model to more adequately represent mine reclamation hydrology. Five years later,...

Formulation of a Hydrologic Model, for Use with Remotely Sensed Data
Research is currently being conducted at the Pennsylvania State University, as well as, many other sites, in the area of Geographical Information Systems (GIS) and implementing its application...

Estimating Floodplain Limits for Complicated Hydrologic and Hydraulic Conditions
A new approach for estimating floodplain limits is shown. A hydraulic model with flood routing capabilities is coupled with a hydrologic model to compute river stages. Simulations are...

Technology Transfer to Developing Countries
The author describes three types of technology transfer programs that have been found to be effective in hydraulic engineering and other engineering disciplines and cites examples of how...

Mathematical Models for Reservoir Routing Analysis
Various mathematical models exist for the analysis of reservoir flood routing problems. This paper compares recent Runge-Kutta and Euler numerical techniques with the well known Puls approach...

A Two-Dimensional Flow and Hydrogeochemical Transport Model
A two-dimensional flow and hydrogeochemical transport model is designed for estimating the movement and attenuation of chemicals after they are released into subsurface systems. This model...

A Unified Approach to Flood Frequency Analysis
Most stochastic hydrologic studies are based on statistical distributions that are pre-selected without giving consideration to the applicability of the distribution to a particular data...

A New Look at the Statistical Estimation of PMP
The statistical base of Hershfield's K_mvalue Method and its application for estimating Probable Maximum Precipitation (PMP) were reviewed. The mathematical...

Hydrologic Regionalization Using a Homogeneity Test
A framework is presented for a regionalization method with a region of influence (ROI) approach. The methodology explicitly incorporates a homogeneity test in the process of selecting...

Adapting BMPs to California Hydrology and Climatology
The State of California has the most diverse hydrology and climatology in the United States. It boasts the highest and lowest elevations in the continental U.S. and annual rainfall varies...

GIS-Integrated Surface Hydrology System
A GIS-based stormwater management system has been developed for the Pasco County Board of County Commissioners. The model draws all spacial data including watershed parameters, network...

Fate/Transport Modeling of Immiscible LNAPL in Unsaturated Aquifers
In the past ten years since enacting CERCLA and SARA regulations there is a lack of model to adequately address the fate/transport of immiscible constituents in groundwater systems. This...

A Log-Triangular Design Hyetograph for Stormwater Management
A method is developed to generate a log-triangular design hyetograph from historical rainfall data. The method considers the characteristics from other commonly used methods for design...

Streamflow Forecasting for the Bradley Lake Project
The National Weather Service (NWS) uses a suite of software called NWS River Forecast System (NWSRFS) for operational river stage and streamflow forecasting. NWSRFS is a modular system...

 

 

 

 

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