Abstract

Various natural and artificial radionuclides are widely used in determining the soil erosion. Applications of these techniques to coastal erosion are, however, relatively new. This study describes the use of 137Cs radionuclide for obtaining information on coastal dynamics is subject to erosion, losses of sediments, and deposition of material that had been remobilized from near-shore sediments and also a empirical model has been created to obtain information erosion, sedimantiation and other coastal dynamics. Firstly, radioactivity levels of 137Cs element was determined on 112 (21) sand and 16 (3) soil samples taken from the beaches of Urla Peninsula. The results obtained are related to coastal current and wave directions and grain size distribution at the beaches. Then a model was created to understand the amount erosion and which beaches have sensitive to erosion. The results of the study are transferred to a geographical database and mapped.