Investigation on the rainfall-runoff relationship for the Rompin river basin

Hydrological information derived from rainfall-runoff relationship are essential for efficient planning and management of watersheds. Flood and drought issues in a watershed are highly dependent on the hydrological analysis output for mitigation design purpose. Rainfall-runoff processes are unique f...

Full description

Bibliographic Details
Main Author:	Chin, Man Sum
Format:	Undergraduates Project Papers
Language:	English
Published:	2018
Subjects:	TC Hydraulic engineering. Ocean engineering
Online Access:	http://umpir.ump.edu.my/id/eprint/27864/ http://umpir.ump.edu.my/id/eprint/27864/ http://umpir.ump.edu.my/id/eprint/27864/1/Investigation%20on%20the%20rainfall-runoff%20relationship%20for%20the%20Rompin%20river.pdf

id	ump-27864
recordtype	eprints
spelling	ump-278642020-02-17T02:43:23Z http://umpir.ump.edu.my/id/eprint/27864/ Investigation on the rainfall-runoff relationship for the Rompin river basin Chin, Man Sum TC Hydraulic engineering. Ocean engineering Hydrological information derived from rainfall-runoff relationship are essential for efficient planning and management of watersheds. Flood and drought issues in a watershed are highly dependent on the hydrological analysis output for mitigation design purpose. Rainfall-runoff processes are unique for each basin and therefore needed to be modelled individually. Additionally, the raw hydrological data is also crucial and thus must be reliable to be applied in the modelling. This study aims to: 1) generate a rainfallrunoff relationship scheme for the Rompin River; 2) calibrate and validate the simulated rainfall-runoff streamflow by comparison with the observed data. The continuous rainfall-runoff modelling was carried out using HEC-HMS for both wet and dry period utilizing rainfall data from 6 gauging stations and streamflow data from 2 gauging stations within the Rompin River Basin. Clark Unit Hydrograph was selected as the transform method for this study with the Tc and R parameters estimated using Hydrological Procedure 27 which was developed by the Department of Irrigation and Drainage (DID) Malaysia. SCS Curve Number was used as the loss method to predict the direct runoff from precipitation. For the baseflow and lag routing, constant monthly was used. From the results obtained, Clark Unit Hydrograph showed better performances in modelling the wet period compared to the dry. For wet period, the RMSE and NSE value for the best model are 59.83 and -0.64. As for dry period, the RMSE and NSE value for the best model are 6.22 and -1.84. The model for wet period is producing similar flow pattern with overestimation of flow, however it is applicable if provided with soil map data. 2018-06 Undergraduates Project Papers NonPeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/27864/1/Investigation%20on%20the%20rainfall-runoff%20relationship%20for%20the%20Rompin%20river.pdf Chin, Man Sum (2018) Investigation on the rainfall-runoff relationship for the Rompin river basin. Faculty of Civil Engineering and Earth Resources, Universiti Malaysia Pahang. https://efind.ump.edu.my/cgi-bin/koha/opac-detail.pl?biblionumber=90918
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English
topic	TC Hydraulic engineering. Ocean engineering
spellingShingle	TC Hydraulic engineering. Ocean engineering Chin, Man Sum Investigation on the rainfall-runoff relationship for the Rompin river basin
description	Hydrological information derived from rainfall-runoff relationship are essential for efficient planning and management of watersheds. Flood and drought issues in a watershed are highly dependent on the hydrological analysis output for mitigation design purpose. Rainfall-runoff processes are unique for each basin and therefore needed to be modelled individually. Additionally, the raw hydrological data is also crucial and thus must be reliable to be applied in the modelling. This study aims to: 1) generate a rainfallrunoff relationship scheme for the Rompin River; 2) calibrate and validate the simulated rainfall-runoff streamflow by comparison with the observed data. The continuous rainfall-runoff modelling was carried out using HEC-HMS for both wet and dry period utilizing rainfall data from 6 gauging stations and streamflow data from 2 gauging stations within the Rompin River Basin. Clark Unit Hydrograph was selected as the transform method for this study with the Tc and R parameters estimated using Hydrological Procedure 27 which was developed by the Department of Irrigation and Drainage (DID) Malaysia. SCS Curve Number was used as the loss method to predict the direct runoff from precipitation. For the baseflow and lag routing, constant monthly was used. From the results obtained, Clark Unit Hydrograph showed better performances in modelling the wet period compared to the dry. For wet period, the RMSE and NSE value for the best model are 59.83 and -0.64. As for dry period, the RMSE and NSE value for the best model are 6.22 and -1.84. The model for wet period is producing similar flow pattern with overestimation of flow, however it is applicable if provided with soil map data.
format	Undergraduates Project Papers
author	Chin, Man Sum
author_facet	Chin, Man Sum
author_sort	Chin, Man Sum
title	Investigation on the rainfall-runoff relationship for the Rompin river basin
title_short	Investigation on the rainfall-runoff relationship for the Rompin river basin
title_full	Investigation on the rainfall-runoff relationship for the Rompin river basin
title_fullStr	Investigation on the rainfall-runoff relationship for the Rompin river basin
title_full_unstemmed	Investigation on the rainfall-runoff relationship for the Rompin river basin
title_sort	investigation on the rainfall-runoff relationship for the rompin river basin
publishDate	2018
url	http://umpir.ump.edu.my/id/eprint/27864/ http://umpir.ump.edu.my/id/eprint/27864/ http://umpir.ump.edu.my/id/eprint/27864/1/Investigation%20on%20the%20rainfall-runoff%20relationship%20for%20the%20Rompin%20river.pdf
first_indexed	2023-09-18T22:43:43Z
last_indexed	2023-09-18T22:43:43Z
_version_	1777417084660088832

Investigation on the rainfall-runoff relationship for the Rompin river basin

Similar Items