Flood Disaster Management Case Study

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CHAPTER 1 INTRODUCTION 1.1 Introduction This chapter opens with a general discussion on the background and history of floods disaster occurrence and flood hazard management in Malaysia. As floods are the single most severe of all disasters in Malaysia, the chapter specifically focuses on flood disaster management. This is followed by an emphasis on ex post and ex ante analysis of the past and potential socioeconomic impacts of flood disasters in Malaysia. It then reviews and assesses the effectiveness of Malaysia’s flood disaster management system with respect to “Risk Identification, Emergency Preparedness, Institutional Capacity Building, Risk Mitigation, and Catastrophe Risk Financing”. A detailed discussion on the current constraints…show more content…
In an effort to analyze and control flooding, experts or engineers need an amount of information, or specific data to analyze the flood which most of this information is based on the properties of and the criteria for the geographical position in the catchment area. Thus, a database and GIS systems are needed to store and used all the data or information is in the process of analysis and specific planning in the future. Most of the management work of catchment areas still use conventional methods. Maps and plans in the form of hard copy as a reference to geographical information for flood analysis process. This method is difficult and requires some time as well as analysis results also cannot be shown easily and clearly. Among the developed systems tried by DID all over Malaysia just involve the general view of the areas hit by the floods and the data attribute associated with it. DID Johor as well as the parties involved directly or indirectly in the management of the flood is actually more needing a GIS application system which not only provides a display of the affected areas, but they can also estimate the event will happen in the future for flood disaster…show more content…
To produce flood modeling using HEC-GeoRAS in preparing flood risk at Sungai Semberong catchment. 1.4 Scope of Study This study was carried out in the Sungai Sembrong catchment area at Batu Pahat, Johor. The required data sources in this study are divided into two types, namely spatial data and attribute data. Spatial Data refers to the contour plans, River, land use, soil type and wide basin. While the data attributes are data-rainfall data, such as rainfall, rainfall ranges and Sungai Sembrong water level. To analyze the flood overflow information model used is the hydrological models and model of water balance. Selected software ArcGIS 9.3 is to be used to carry out this analysis. 1.4.1

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