FLOOD DISASTER STUDIES: A REVIEW OF REMOTE SENSING PERSPECTIVE IN CAMBODIA

Flood is the most critical natural disaster in Asia. It is also the most affected disaster in Cambodia. The solution must be made to manage the disaster from being interrupting people. The purposes of the study are to identify the 2011 flood impact spatial distribution, evaluate how RS has been applied to flood analysis, and assess the gaps of RS for flood analysis over Cambodia. The flood impact can be calculated by using a weighted arithmetic mean (WAM). The flood studies can be accessed through several literary databases. The 2011 flood impacts commonly located in the regions of Tonle Sap and Mekong River. Furthermore, other regions were affected. Fourteen articles have been found, which are six flood hazard mappings, seven flood risk assessments, and one flood damage assessment. Most of the study covered the Mekong River and Tonle Sap Lake catchments; however, there are still lacking studies over other affected areas. Besides, flood forecasting and flood early warning were not paid attention. Due to the limitation of rain gauge stations, RS is very important to apply for flood studies. Likewise, the radar composite with the neighboring countries is useful since some parts of the borders were blocked by the mountains. In brief, this review could generate greater ideas and solutions for further flood studies efficiency.