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2020 | OriginalPaper | Buchkapitel

Methods of Estimating Time of Concentration: A Case Study of Urban Catchment of Sungai Kerayong, Kuala Lumpur

verfasst von : Rofiat Bunmi Mudashiru, Ismail Abustan, Fauzi Baharudin

Erschienen in: Proceedings of AICCE'19

Verlag: Springer International Publishing

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Abstract

Characterization of hydrologic processes of a catchment in relation to water resources structures design requires estimation of time-response characteristics which is used in hydrologic models. The time of concentration (Tc) is an essential component in hydrological modelling which is used in predicting the response time of a catchment to a storm event. There are many approaches in the estimation of time of concentration from literature. At gauged watersheds, Tc can be estimated using rainfall and a runoff hydrograph, while for ungauged catchments, empirical equations are used. In this study, variability of empirical methodologies and hydrograph separation method for evaluating Tc using data from past study on Sungai Kerayong, Kuala Lumpur is presented. Results of the study showed Gundlach, Carter and NAASRA methods are suitable for estimating Tc in the study area while Bransby-Williams and Ventura methods were the poorest in estimation of Tc in the study.

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Metadaten
Titel
Methods of Estimating Time of Concentration: A Case Study of Urban Catchment of Sungai Kerayong, Kuala Lumpur
verfasst von
Rofiat Bunmi Mudashiru
Ismail Abustan
Fauzi Baharudin
Copyright-Jahr
2020
DOI
https://doi.org/10.1007/978-3-030-32816-0_8