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The Water Erosion Prediction Project: Model Overview
A new generation of water erosion prediction technology is being developed by the USDA Water Erosion Prediction Project (WEPP). The WEPP models are a new erosion prediction technology...

The Water Erosion Prediction Project: Erosion Parameter Estimation
The USDA Water Erosion Prediction Project (WEPP) includes a large field program for collection of experimental data to evaluate soil erodibility. Rainfall simulation techniques are used...

Water Erosion Prediction Project Operational Computer Program
The Water Erosion Prediction Project (WEPP) is a physically-based model to improve on-site erosion prediction techniques. It is designed to replace the Universal Soil Loss Equation (USLE)...

Proper Use of Effective Flow Boundaries
The determination of the appropriate effective flow boundaries is an important factor in the hydraulic modeling of the flow regime of a stream. It is especially critical in areas with...

Mathematical Modeling of Water Balance in a Well Defined Pilot Area
This study developed a water balancing computer code, a type of book keeping method using a detailed version of the hydrologic balance equation. The purpose was to provide a method of...

Computer Control of Water Systems: Practical Considerations
Presented are some applications projects and procedures concerned with modeling and control of water supply and distribution systems. The work has resulted in the development of a suite...

Dynamic Modeling and Control Optimization in An Urban Area?A Case Study
The procedures adopted to achieve improved economic operation of the water supply and distribution system serving the town of Wolverhampton (UK) are described. An outline description is...

Computer Support for TVA's Reservoir System Operations: Hardware
The current computer systems in use at TVA for hydrologic data collection and modeling are approaching ten years old. A study is in progress to determine the computer systems needed to...

California's Adaptable Model for Operations Planning for the State Water Project
Operations of the California Aqueduct, a 440-mile-long feature of the State Water Project (SWP) consisting of canals, pipelines, reservoirs and hydroelectric plants, are planned using...

Development and Application of Hydrologic Forecast Systems
Hydrologic forecast systems generally consist of several components which include computer hardware and software to perform data handling functions and enable users to calibrate hydrologic...

Parameter Identifiability in Conceptual Rainfall?Runoff Models
Computers have played a major role in the evolution of hydrologic rainfall-runoff models. Besides providing the computational power required for the simulation of the complex interacting...

Kalman Filter in Real-Time Hydrologic Forecasting: A Tutorial
The Kalman filter provides an algorithm by which measured streamflow can be used to update the estimated hydrologic state of the watershed as determined from the application of a hydrologic...

The Alabama Rainfall-Runoff Model, ARRM
ARRM consists of a conceptual state-space model which is cast in a stochastic framework. It uses the W.H. Green and C.A. Ampt method for infiltration, exponential decay for interflow and...

What is Necessary to Forecast River Flows Reliably?
The problem of forecasting river flows employing conceptual rainfall-runoff models is reviewed stressing the important connections that exist among data requirements, model structure,...

Limitations of Level-Pool Routing in Reservoirs
Storage routing is defined for purposes of this study as any routing technique which expresses reservoir storage as a single-valued function of stage, and hence it is sometimes termed...

Channel Routing for Improved Flood Control
Lake Wappapello, located on the St. Francis River in southeastern Missouri, is operated by the St. Louis District (SLD) Corps of Engineers for purposes of flood control and recreation....

Development, Calibration and Application of Runoff Forecasting Models for the Allegheny River Basin
The computer program HEC1F, developed by the Corps of Engineers' Hydrologic Engineering Center, performs runoff forecasting. The focus of this paper is on application of HEC1F...

Seasonal Streamflow Forecasts Based Upon Regression
Many western water-supply system operators employ forecasts of seasonal inflows for the snow-melt season to plan spring and summer operations. This study considers the simple statistical...

Streamflow Forecasting for Hydropower Operations Using Interactive Modeling Systems
This paper discusses the development of the Snake River Forecast Model (SRFM), a streamflow forecasting system for long-range planning and short-range operation of fifteen hydropower projects....

Computer Simulation of the Long-Term Operation of the Manitoba Hydro System
The System Simulation Model is a deterministic long-term planning model used to simulate reservoir operation and energy allocation in the Manitoba Hydro system. The model uses the method...

 

 

 

 

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