Author(s): Muhammet TOPUZ
One of the most important of the natural disasters directly affecting human life is flood disaster. The correct analysis of these events leading to the loss of life and property is crucial to the reduction of losses in the next repetition. In this context Limonlu, which has experienced flood disaster many times in its history facing a similar situation in november 2012, indicating that adequate measures were not taken. In this study; daily and hourly precipitation data from the General Directorate of Meteorology (MGM in Turkish acronym) and using HYSPLIT Model a meteorological analysis of the flood disaster was carried out. In addition flood disaster was evaluated from the hydrographic point of view using the data of flow of the river taken from The General Directorate of State Hydraulic Works (DSI in Turkish acronym) Mersin Branch Directorate. Finally, a digital elevation model (DEM) of the region was generated over a 1/25.000 scale topography map; the basin characteristics of the river were determined and the relationship with the flood disaster was established. As a result; it was determined that the precipitation that started on November 8, 2012 reached the maximum level at 9:00 on November 9, 2012 and the hourly precipitation reached 40,2 mm on the per m2 . The total daily precipitation reached a maximum level on November 9, 2012, exceeding 99 mm in per m2 . According to HYSPLIT model; it has been understood that the air mass responsible for maximum precipitation is an unstable marine polar (mPu) air mass dominated by the winter climate in the Mediterranean climate zone. The morphological features and lithological structure of basin have also been found to be other factors that increase the effectiveness of flood. In addition, changes in land cover/land use have increased the damages caused by flood and overflow.
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