Advancing Coastal Zone Management: Integrative Approaches in Indian Coastal Regions

Prasath, Guru and Sannasiraj, 2024. Advancing coastal zone management: Integrative approaches in Indian coastal regions. In: Phillips, M.R.; Al-Naemi, S., and Duarte, C.M. (eds.), Coastlines under Global Change: Proceedings from the International Coastal Symposium (ICS) 2024 (Doha, Qatar). Journal of Coastal Research, Special Issue No. 113, pp. 140-143. Charlotte (North Carolina), ISSN 0749-0208. India's expansive coastline, stretching 7517 km along the mainland and the Andaman & Nicobar and Lakshadweep islands, demands a comprehensive and meticulous coastal zone management plan (CZMP). This vast expanse encompasses nine coastal states, two union territories, and 66 coastal districts, housing crucial infrastructure. Effective CZMP necessitates comprehensive data on coastal ecosystems, marine habitats, hazards, and anthropogenic impacts. This research delves into India's CZMP efforts, focusing on the Coastal Regulation Zone (CRZ) regulations initially implemented in 1991 and subsequently amended in 2011 and 2019. Leveraging remote sensing technologies and Geographic Information System (GIS) techniques, this statutory notification utilizes satellite imagery to delineate coastal sections requiring conservation and regulated development. The published coastal zone management plans are employed in development work to understand CRZ zoning. Cyclonic storms emerge as a critical concern when planning expensive coastal infrastructure, especially along the East Coast of India, where they have caused significant damage to structures along the coast. Integrating storm surge information and cyclone track data into coastal management plans empowers stakeholders to proactively mitigate risks and plan developments resiliently, thus safeguarding coastal communities and infrastructure. This study employs spectral wave modeling to simulate extreme wave climates along the Indian coast, providing insights into the impacts of cyclonic events. Incorporating maximum cyclonic wave heights for each coastal state into coastal maps provides decision-makers invaluable insights into infrastructure planning, disaster preparedness, and resilience building. Additionally, district-level maps provide information on past cyclone tracks and regions of affected coastal structures, aiding our understanding of the coastal region. We take up the sample coastal zone region of Cuddalore from Tamil Nadu in South India as a case study and juxtapose this integrated data with the approved CZMP to enhance the utilization of the plan in regulating coastal zone development. In conclusion, the synergy of remote sensing, GIS, and advanced modeling techniques offers a holistic approach to coastal zone management in India. This integrated framework enables policymakers, coastal communities, and relevant stakeholders to make informed decisions, ensuring the sustainable use and preservation of coastal resources amidst evolving environmental challenges.