The Inventory of Flood Disasters in Turkey
Özet
Turkey is located both Europe and Asia, and covers an area of 780 580 km(2) including the lakes. Turkey undergoes different types of natural disasters because of its geographical location, geomorphology, and topography. Flooding is the second important natural hazard after earthquakes.
A flood inventory of the period extending from 1955 to 2020 having a total of about 3250 events was prepared using a simple computer program based on Excel for easy access to different geomorphologic parameters such as surface areas of river basins, slope, geological structure, vegetative cover, type of precipitation, and the elevation above mean sea level (a.m.s.l) and hydro-meteorological parameters. In the same inventory each flood has been defined with damages on human as lost and injured, size of flooded area and loss of wealth (not exact information for wealth). By categorization of the available data in hand, spatial and time distributions of past flood events were determined. In large basins, negative impacts are more closely related to climatic factors, but in small watersheds, the urbanization along the rivers, internal migration, regional planning, urban drainage infrastructure are more important on negative impacts.
In order to prevent the floods and minimize the adverse effects to property, both structural and non-structural solutions are applied in Turkey. Two case studies added to show the solutions.