Converging Flow Model Applied to Urban Catchment
A converging kinematic wave overland flow model was applied to an urban catchment, Rock Creek Watershed in Maryland. The 2-parameter model was easily calibrated and gave reasonable predictions...

Computer Mapping in a Catchment Land Use Study

SWMM Application to Combined Sewerage in New Haven
Storm Water Management Model (SWMM) of EPA was calibrated to predict runoff flows in the central portion of the city of New Haven, Conn. The study area is served by combined sewers and...

Calibration of Hydrological Model Using Optimization Technique
Computer-based mathematical models that simulate the response of a catchment to climatic variables have been available for more than a decade. One of the drawbacks to the use of these...

Effects of Urbanization on Catchment Response
A mathematical model was utilized as an experimental tool to perform a series of controlled experiments on small hypothetical catchments characteristic of areas in Puerto Rico. The purpose...

Independent Comparison of Three Urban Runoff Models
Three urban runoff models (the Road Research Laboratory hydrograph method, the Storm Water Management Model, and the Cincinnati Urban Runoff Model) were applied to two urban catchments...

Simple Nonlinear Model for Flood Estimation
A simple nonlinear model is described which has several advantages over the traditional unit hydrograph technique. The catchment is divided into several subcatchments, the storage characteristics...

Fitting Methods for Conceptual Catchment Models
To use conceptual (mathematical) models of catchment hydrology, it is first necessary to know the values of the parameters that control the behavior of the model. This has usually been...

Variation in Lag Time for Natural Catchments
Lag time for a catchment is shown to be a variable which is strongly correlated with flood magnitude. Values for various parameters of rainfall and runoff were derived from the analysis...

Pattern Forming Forces in Deltas
The distinctive accretion pattern in the deltas of the world would appear to be controlled by forces associated with the river system, the receiving mass of water and the climate of catchment...

Systematic Variation Pattern of Annual River Flows
Statistical analysis of annual river flows in the United States, some European countries and southern Australia, in latitudes higher than 34○ N or S indicates a useful significant relationship...

Side Stream Intakes for Hydro Power in Scotland
The enlargement of natural catchments by the diversion of streams from adjacent catchments into them has been important in many Scottish hydro-electric power developments. Exclusion of...

Mathematical Models of Catchment Behavior
After an examination of trends in the modeling of hydrologic systems, a review of some recent studies is given. The authors' preliminary studies on the feasibility and efficiency...

Short Cuts in Hydrology
In Queensland, Australia, a general rainfall-runoff relationship has been found useful when applied to rainfall zones in a catchment, rather than to the mean rainfall over the entire catchment....

 

 

 

 

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