Dr Thiruvenkatasamy
Department of Harbor & Ocean Engineering ,AMET University,India
Title: Shoreline Evolution due to Construction of Rubble Mound Jetties at Munambam Inlet in Ernakulam-Trichur District of the State of Keralain the Indian Peninsula
Biography
Biography: Dr Thiruvenkatasamy
Abstract
Munambam is an inlet where the north branch of periyar river after joining Chalakudi and Pullut rivers meets the Arabian Sea. Due to the littoral drift from the north direction a sand spit was formed at the mouth which caused frequent capsizing of boats.In order to permanently eradicate the problem, two breakwaters of length 360m and 625m were constructed in the year 2000. After the construction of breakwaters,the sand spit disappeared and there was considerable improvement in the bathymetry at the initial periods but the problem recurred .This paper highlights the details of the shoreline evolution from 1975 to 2012 derived from the actual field data. The results indicated the advancement of shoreline on either sides which is a peculiar phenomenon unlike erosion on one side and accretion on the other. Short term solutions for the management of the recurring problems are suggested in the paper. Long term solutions of the problems of the inlet by state and local agencies are suggested, such as calling for the attention of the state and local government research organisations.