Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 7 of 7 for “"Runoff hydrographs"”.
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The effect of rainstorm movement on urban drainage network runoff hydrographs
Prediction and estimation of runoff has been a long-standing topic of hydrology for the purpose of water resources management both in terms of quality and quantity, flood control, ecology, and environmental considerations. It is well recognized that surface runoff from a watershed due to a …
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Evaluation of the effectiveness of BMP's for urban stormwater management: single-event simulation
… response to a rainfall event in terms of runoff generation and to estimate nonpoint source pollutant loadings associated with the storm event. The algorithms utilize the SCS TR - 55 method for calculating runoff hydrographs for a single storm event. A methodology has been adapted to …
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Effect of urban street pattern on drainage.
In cities, storm runoff is usually collected in the streets and conveyed to underground storm drains through inlets located at street level. Construction and maintenance of storm drain systems is always expensive. In semiarid regions with a very low frequency of storm occurrence, most cities use …
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Development and Evaluation of a Gis-Based Spatially Distributed Unit Hydrograph Model
Synthetic unit hydrographs, which assume uniform rainfall excess distribution and static watershed conditions, are frequently used to estimate hydrograph characteristics when observed data are unavailable. The objective of this research was to develop a spatially distributed unit hydrograph (SDUH) …
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Hydrology of the Beaver Creek watershed using the TR-20 model and the HEC-HMS program
… of the watershed with the aid of rainfall-runoff models was proposed. The watershed modeling was done with the help of two hydrologic models---the NRCS Technical Release - 20 Model (TR-20) and Hydrologic Engineering Center - Hydrologic Modeling System (HEC-HMS) Program. The main objective …
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ANALYSES OF INFLUENTIAL FACTORS FOR ACCURATE DETERMINATION OF PEAK RATE FACTORS AND TIMES TO PEAK OF UNIT HYDROGRAPHS
… one of the most widely used models for computing runoff hydrographs. The two-parameter gamma UH can be fully characterized by two parameters: the peak rate factor (PRF) and the time to peak (tpUH). Currently, obtaining accurate estimates of UH parameters is still a problem, especially for ungauged …
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Thunderstorm runoff in southeastern Arizona.
Almost all runoff-producing rainfall on small watersheds (100 square miles and less) in southeastern Arizona results from air-mass thunderstorms. On large watersheds (1,000 square miles and greater) frontal systems which may include thunderstorm activity or snowmelt produce the major flood peaks as …