The shoreline change analysis has been carried out using satellite images to estimate the rate of change in terms of distance eroded or accreted and the rate of change estimated using the cross-shore profile in terms of area and volume. From the satellite images, the shoreline has been extracted after rectification and co-registration. The shoreline change rate from October 2015 to September 2022 has been analysed, and the trend has been compared with beach profile data. Digital shoreline change analysis system (DSAS) is a software application that works within the Geographic Information System (ArcGIS) software. DSAS computes rate-of-change statistics for a time series of shoreline vector data. It is also useful for computing rates of change for other boundary change conditions that incorporate a clearly-identified feature position at discrete times.

​Similarly, the beach profile data perpendicular to the shoreline for 40 km stretch at intervals of 500m, using RTK or total station landward up to 100m distance from HTL or +2m elevation w.r.t. HTL and using shallow-draft boats, sled or any other suitable techniques seaward down to 10m CD collected monthly. The shoreline change analysis using beach profile data has been carried out using SANDS software/MATLAB. The detailed methodology of the shoreline change analysis using satellite images and beach profile analysis has been provided in this report.