Assessing Cyclone-Induced Landscape Transformation in the Coastal Town of Diu, India: Insights from Cyclone Tauktae using Sentinel-2
Keywords:
Tauktae, NDVI, NDBI, Sentinel, LULC, Disaster ManagementAbstract
Natural disasters occur often around the world, and their incidence and intensity appear to be increasing in recent years. The disasters, like cyclones and floods, usually cause vital loss of life, large-scale economic and social impacts, environmental damages, and drastic changes in land use and land cover (LULC). Cyclones can cause devastating impacts, including strong winds, heavy rainfall, storm surges, and flooding. The aftermath includes infrastructure damage, loss of life, displacement of communities, and ecological disruptions. Studying the impact of cyclones on LULC is crucial to inform the design and implementation of natural vegetation management, identify threatened habitats, prevent and/or counter environmental threats, and enhance conservation efforts and offers valuable insights for disaster preparedness, infrastructure planning, and climate resilience. Understanding and forecasting the consequences of climate change is critical to support the work of planners and decision makers. The coastal wetland of Diu, with numerous creeks and channels, is associated with shoals and vast tidal flats and has one of the richest zones for mangroves along the west coast of India. The study portrays the occurrence of a TAUKTAE, a super cyclonic storm of the 21st century, to land in Gujarat, Saurashtra, and Diu, the most-hit, which was formed over the Arabian Sea. The research uses Sentinel 2A to derive different indices such as NDVI, used in mapping vegetation change, and NDBI (Normalized Difference Built-up Index) to detect changes based on the spectral response of built-up areas for the pre- and post-cyclone Tauktae periods. This study can enhance understanding of vulnerability and aid in formulating strategies to mitigate cyclone impacts, ensuring sustainable development in the region.
The coastal wetland of the Diu with numerous creeks and channels is associated with shoals and vast tidal flats have one of the richest zones for mangroves along the west coast of India. The study portrays the occurrence of a TAUKTAE, super cyclonic storm of 21st Century to Land in Gujarat; Saurashtra, Diu Most-Hit that was formed over Arabian Sea. The research uses Sentinel 2A is used to derive different indices such as NDVI used in mapping vegetation change and NDBI (Normalized Difference Built-up Index) to detect changes based on the spectral response of built-up areas for pre and post period of cyclone Tauktae. This study can enhance understanding of vulnerability and aid in formulating strategies to mitigate cyclone impacts, ensuring sustainable development in the region.
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