Geospatial techniques
to determine Coastal geomorphology changes along the Cuddalore and Nagapattinam
coast, Tamil Nadu, India
Kongeswaran Thangaraj, Sivakumar Karthikeyan, Muthuramalingam Rajendran and Muruganantham
Arumugam
Disaster Advances; Vol. 17(4); 18-24;
doi: https://doi.org/10.25303/174da018024; (2024)
Abstract
This study proposes to use geospatial techniques to assess coastal geomorphological
changes along the southeast coast of India, from Cuddalore to Nagapattinam. The
results will provide insights into regional morphology changes and will advance
our understanding of coastal evolution, sea level variations and quaternary geomorphic
processes. The coastal geomorphological units of the study area comprise of the
coastal zone and an older deltaic plain.
Most coastal zone features have developed through erosion, accretion and other natural
processes. These features can be classified as depositional or erosional. By analyzing
satellite imagery from 1980 to 2020, the study identified changes in coastal geomorphological
features. This information can be used to locate mineral deposits, hydrocarbon locales,
groundwater targets and sites for artificial recharge and saltwater intrusion mitigation.
It can also affect coastal zone management decisions.
