Costal classification of Chabahar coast from the viewpoint of coastline interaction using empirical methods
Subject Areas : Marine Physics
K.
Lari
1
(Dept. of Physical Oceanography, Faculty of Marine Science and Technology, Islamic Azad University, Tehran North Branch)
S.M.
Shahrokhi
2
(Dept. of Physical Oceanography, Faculty of Marine Science and Technology, Islamic Azad University, Tehran North Branch)
Keywords: Coastal classification, wave- tide, low tide bar and ultra-dissipative beach,
Abstract :
Classification of coasts entails a general knowledge of the coasts, regarding the characteristics of the waves, tide, sediment and morphodynamics. Chabahar port is very important from the viewpoint of oceanography, political and economical issues. In this research, by using Non-dimensional parameters, reactions of the coastline have been investigated according to the hydrodynamic circumstances, in three stations in Chabahar bay, using field measurements reported by Iranian Ports and Coastal Engineering Organization, from 1992 to 2002, using three methods of Hanson, Hayes and Masselink and Short. Results showed that the tide was semi-diurnal with an average tide range of 2.83 meters, the dominant wave direction was towards southwest, wave break was turbulent and sediment aggregation was fine. In the next stage, using empirical methods the situation of the coast was determined, using Hanson method it was wave - tide, whereas by the classification of Hayes it was a tide dominated (low) and by Masselink and Short classification it was low tide bar in most of the months and in some months ultra-dissipative beaches.
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