Mapping and Electronic Publishing of Shoreline Changes using UAV Remote Sensing and GIS

• Published in: Journal of the Indian Society of Remote Sensing 2021-08, Vol.49 (8), p.1769-1777
• Main Authors: Shenbagaraj, N., Senthil kumar, K., Rasheed, A. Mohamed, Leostalin, J., Kumar, M. Naresh
• Format: Article
• Language: English
• Subjects: Aerial surveys; Anthropogenic factors; Coastal management; Coastal processes; Coastal zone; Coastal zone management; Earth and Environmental Science; Earth Sciences; Earth surface; Electronic publishing; Image acquisition; Image resolution; Remote sensing; Remote Sensing/Photogrammetry; Research Article; Satellite imagery; Satellites; Shoreline changes; Shorelines; Unmanned aerial vehicles
• ISSN: 0255-660X; 0974-3006
• DOI: 10.1007/s12524-020-01287-1

The shoreline is one of the most important dynamic linear features on the earth’s surface, thus the shoreline detection and monitoring are an important task. The study of coastal system processes and coastal zone management (CZM) requires information about the shoreline and their changes. The reason for shoreline changes in the coastal zones mainly focuses on, various activities such as natural and anthropogenic activities. This study describes the utilization of satellite and an unmanned aerial vehicle (UAV) remote sensing (R/S) to detect shoreline changes between 1989 and 2017 and identify the rate of change of shoreline for ~ 8.7 km of Cuddalore District, Tamil Nadu, India. UAV R/S is used to acquire the high resolution of aerial nadir image with low cost and short time periods for on-demand areas. Visual interpretation method has been employed to delineate the shoreline from different periods of satellite and UAV images with various resolutions. The vector overlay technique (VOT) assess the area of shoreline changes for different periods between 1989 and 2017. The tool named as digital shoreline analysis system (DSAS) was utilized to find the rate of shoreline changes. This study concludes changes of regression and transgression by using end point rate (EPR) is between − 5.3 m and + 5.99 m. The plus sign ( +) indicates regression (sea converted to land) and minus sign (–) represents the transgression (land converted to sea) of shoreline. Each and every period of shoreline change were arranged in a continuous frame to make a video and published in webGIS. In future coastal management studies, UAV and R/S can be effective alternative methods to the traditional aerial surveys.