Determining The Effectiveness Of Tasik Harapan And Tasik Aman As Flood Ponds At Universiti Sains Malaysia
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Date
2012-05
Authors
Fitri, Arniza
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Journal ISSN
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Publisher
Universiti Sains Malaysia
Abstract
Flooding is a common natural disaster in Malaysia triggered by heavy rainfall. Urbanization that increases the construction of paved areas, subsequently raise surface runoff and reduce time of concentration. It increases flood magnitude and so that leads to greater flood problems as what has happened at Universiti Sains Malaysia (USM) Main Campus area. USM Main Campus Malaysia has experienced flood problems since its development in 1971. Tasik Harapan and Tasik Aman were constructed in 1990 as recreation ponds and have also functioned as flood ponds. Unfortunately, the flood problem still occurs persistently. Thus, the effectiveness of Tasik Harapan and Tasik Aman in reducing the flood problems need to be investigated and the causes of flood events at USM Main Campus need to be evaluated. HEC-RAS hydraulic model was used to compare the behavior of flood profiles from several conditions. To support the study, ArcView-GIS and WinTR-55 hydrologic model also have been used. ArcView-GIS is used to develop geometric data files require by HEC-RAS model and prepare input data required by WinTR-55. WinTR-55 model is used to generate inflow hydrographs required as boundary condition by HEC-RAS model simulation where in the hydrologic analysis, it includes the comparison among MSMA, Yip (2002) and Taliair Besar Sg. Pinang rainfall.
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Keywords
The effectiveness of tasik harapan and tasik aman , as flood ponds at Universiti Sains Malaysia