Monitoring the Dynamics of Sedimentary Load Variations Along Coastal Regions Using UAVs After Monsoon and High Tide Events at Pantai Punggur and Pantai Perpat, Batu Pahat, Johor

Abstract

This research investigates the changes in sedimentary load along the Pantai Punggur to Pantai Perpat coastline in Batu Pahat, Johor, particularly during the northeast monsoon period from October 2022 to February 2023. The study aims to produce a mapping diagram of the shoreline profile and volume changes across various locations and their association with monsoon changes. The research utilised aerial images captured by UAVs, which were analysed using Pix4D and Global Mapper software. Data was collected for six months from September 2022 to February 2023, with the observation period experiencing a high tide phenomenon on November 24, 2022, resulting in a significant change in the data for that month. Shoreline profile results did not establish a conclusive link between sediment load changes and erosion or accretion due to the lack of volumetric data. Consequently, an analysis of volume changes was conducted using the Global Mapper application. In conclusion, the northeast monsoon wind and high tide phenomena during November 2022 significantly impacted the shoreline profile and total volume of the Pantai Perpat and Pantai Punggur areas.