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Title: A nonlinear model of urban catchment response
Author: Kidd, Christopher Hugh Rashleigh
ISNI:       0000 0001 3598 9582
Awarding Body: University of Southampton
Current Institution: University of Southampton
Date of Award: 1975
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One of the prime requisites for the efficient design of flow capacities of storm water sewerage systems is the ability to simulate mathematically the physical phenomena of the urban runoff process. The purpose of this study is to investigate the above-ground phase of the urban runoff process, and a lumped-parameter nonlinear model is postulated for its simulation, in addition to two simpler models (linear and time of entry) for the purposes of comparison. Two models of differing complexity for the simulation of the below-ground phase are also postulated. Two mall catchments in the Lordshill area of Southampton have been monitored continuously for rainfall and runoff, and suitable storm events reduced to a condition suitable for analysis. It is considered that the two catchments are of small enough size that the performance of the above-ground model should not be obscured by possible inaccuracies of the below-ground model. The model performance is demonstrated with the monitored rainfall as input, and the modelled and observed outfall hydrographs compared for 19 storm events on the two catchments. It is concluded that the nonlinear surface routing submodel provides a better synthesis of the above-ground phenomena than the linear or time of entry submodels.
Supervisor: Not available Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID:  DOI: Not available