Stability of the coastline from Manakkodam to Thottappally along the Kerala coast

Abstract

Wave refraction studies were undertaken to assess the stability of the coastline from Manakkodam to Thottappally, along the Kerala coast. Refraction diagrams were constructed for waves of different periods and directions of approach and the cumulative effect of the sediment transport was assessed for the particular region under study. The study reveals that the coastline north of Alleppey is on the whole a stable one. The stability of the beaches on the southern side from Alleppey Pier to Thottappally spillway, is more dependent on the changes in offshore relief.