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Study of rainfall-runoff relationship using hydrological modelling system (HEC-HMS) for Johor river, Malaysia

Nurul Syafiqah, Mohd Azmi (2014) Study of rainfall-runoff relationship using hydrological modelling system (HEC-HMS) for Johor river, Malaysia. Faculty of Civil Engineering & Earth Resources, Universiti Malaysia Pahang.

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Abstract

This study focused more in flood estimation model for Johor River in Kota Tinggi watershed, Malaysia using HEC-HMS (Hydrological Modeling System). HEC-HMS is necessary tool for analyzing and simulating rainfall and runoff process. In this study, HEC-HMS version 3.5 is used to simulate stream flow for Johor River basin. Calibration and validation process were carried out using different sets of data. Data of precipitation and stream flow used in this study is from the period of January 2012 until December 2012. The precision of data used during calibration and validation process depend on parameter used in HEC-HMS. Results of simulation can be generated in summary table, hydfograph and time series table. Correlation coefficient R 2 and root mean square (RMSE) are used to measure the performance of the modeling. A model with the R2 value is nearly to 1.0 and RMSE value is close to 0 is considered as good and satisfactory. During calibration process, value of RMSE for 1836402 station is 1.9 m3/s while value of RMSE for 1737451 station 1.89 m3/s. During validation process, value of RMSE for 1836402 station is 1.2 m3/s while value of RMSE for 1737451 station is 1.69 m3 Is. The simulated model were fit with the observed data and show that the HEC-HMS are suitable model to predict the hydrologic changes in Johor River.

Item Type: Undergraduates Project Papers
Additional Information: Undergraduates Project Papers (Bachelor of Civil Engineering) - Universiti Malaysia Pahang – 2014
Uncontrolled Keywords: Hydrologic models; Hydrology
Subjects: G Geography. Anthropology. Recreation > GB Physical geography
Faculty/Division: Faculty of Civil Engineering & Earth Resources
Depositing User: Ms. Nurul Amanina Lokman
Date Deposited: 26 Aug 2016 07:49
Last Modified: 26 Aug 2016 07:49
URI: http://umpir.ump.edu.my/id/eprint/13593
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