Spatial and Temporal Shoreline Changes of the Bang Pakong District, Bang Pakong Subdistrict, Chachoengsao Province, Thailand in 2009-2018

Surat Poolsawat (King Mongkut’s Institute of Technology Ladkrabang, Thailand); Somkid Amornsamankul and Wannapong Triampo (Mahidol University, Thailand); Busayamas Pimpunchat (Mahidol University, Bangkok, Thailand)

Coastal erosion is a major problem facing the world. In this study, satellite images were utilized to study the spatial and temporal shoreline changes of Bang Pakong District, Bang Pakong Subdistrict, Chachoengsao Province, Thailand in 2009-2018. The shoreline is approximately 1.95 km long, with the transect divided along longitude every 10.81 m. This research aims at analyzing and evaluating the spatial and temporal dynamics of coastal positions and their geometry in assessing the spatial dynamics of the behavior of coastal systems. Satellite imagery from Google Earth Pro with its image processing has been used in mathematical and statistical analysis to describe shoreline changes over time. This includes Shoreline Front Mean, Shoreline Change Envelope (SCE), Net Shoreline Movement (NSM), End Point Rate (EPR), and Linear Regression Rate (LRR). The accuracy of the results depends largely on the accuracy of the raw data. In the analysis process, we have written R code using standard relations. The study found that the method used to measure shoreline movement was effective. Quantitative changes in length and geometry were found. The results of this study can be used to map shoreline conditions and to identify erosion and shoreline rise. Which will reflect the coastal environment from the past to the present continuing this research can be further studied in the angle of analysis to find out the real cause of the changes that have occurred.

Journal: International Journal of Simulation- Systems, Science and Technology- IJSSST V21

Published: Dec 30, 2020

DOI: 10.5013/IJSSST.a.21.04.06