Open AccessShoreline-change detection at kodungallur – chettuva region in kerala state
Author(s) -
T K Amrutha,
T Reeba
Publication year - 2021
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/1114/1/012026
Subject(s) - shore , state (computer science) , geology , oceanography , geography , physical geography , archaeology , computer science , algorithm
Coastline of Kerala has been experiencing severe erosion/accretion in the past decades, making it vulnerable to coastline changes alike other parts of the world. For a densely populated state like Kerala, the coastal erosion has become a critical issue because of the acute shortage of land especially due to large population density in the coastal zone. This paper mainly aims to prepare shoreline maps using ERDAS IMAGINE and ArcGIS.3 software’s, and to determine shoreline change occurred in the last two decades using DSAS software and identify the most vulnerable area susceptible to shoreline-changes. The study area selected is Kodugallur-Chettuva coastal region in Kerala State. From this study, it is found that the maximum change in shoreline occurred at Vadanappally with a magnitude of 726m due to erosion and at Koorikuzhi with a magnitude 94 m due to accretion. Other critical hotspots found in the study area are Engandiyoor, Palapetty, Poklai, Aattupuram, Kara and Azhikode. It is high time to strategically plan and implement hard/soft coastal protection measures to slow down or prevent further coastal erosion.