Monitoring the tropical cyclone ‘Yass’ and ‘Amphan’ affected flood inundation using Sentinel-1/2 data and Google Earth Engine

• Published in: Modeling earth systems and environment Vol. 8; no. 3; pp. 4317 - 4332
• Main Authors: Halder, Bijay, Bandyopadhyay, Jatisankar
• Format: Journal Article
• Language: English
• Published: Cham Springer International Publishing 01.09.2022
• Subjects: Chemistry and Earth Sciences; Computer Science; Earth and Environmental Science; Earth Sciences; Earth System Sciences; Ecosystems; Environment; Math. Appl. in Environmental Science; Mathematical Applications in the Physical Sciences; Original Article; Physics; Statistics for Engineering; Land transformation; Cloud computing; Flood inundation; Tropical cyclone; RGB clustering
• ISSN: 2363-6203; 2363-6211
• DOI: 10.1007/s40808-022-01359-w

The tropical cyclone is influenced the natural environmental conditions, biodiversity, mangrove forest degradation; salinity increased, and flood inundation at the global landscape and frequently in the coastal regions. Flood inundation is increase due to global sea-level rise and shoreline shifting. In India, several tropical cyclones are influenced by the natural environment, like Fani, Bulbul, Amphan, and Yass. This study is to identify the flood inundation and land use land cover (LULC) affected area due to tropical cyclone Amphan and Yass. Cloud computing-based Google Earth Engine (GEE) platform was used for the development of flood inundation area calculation in affected Indian coast. Random forest algorithm was used for the LULC classification and Sentinel-1 Synthetic Aperture Rader (SAR) of pre and post-cyclone was used for mapping and monitoring the cyclonic effect. The tropical cyclone Amphan and Yass have influenced the agricultural land and mangrove forest areas, like Sundarban and Bhitarkanika, and massive economic losses. Saltwater intrusion in the coastal area has been increased the salinity and frequently those types of cyclonic activities are triggering the coastal vulnerability. Total 11,405.21 sq. km of West Bengal and 10,437.58 sq. km Odisha coastal regions are inundated due to Yass and 22,735.29 sq. km areas are flooded due to Amphan cyclone. Mostly agricultural lands are affected because most of the areas are covered by agricultural land. This study results could be useful for the post-cyclone emergency response, coastal planners, and administrators for sustainable development of people life.