Application of Google Earth Engine and GIS technology to determine coastal changes in Sam Son city, Thanh Hoa province
DOI:
https://doi.org/10.5281/zenodo.15795352Keywords:
Google Earth Engine, GIS, Coastal changes, Sam Son DistrictAbstract
The purpose of the study is to apply Google Earth Engine (GEE) and GIS technology to determine the coastline changes from 2000 to 2023 in Sam Son city, Thanh Hoa province. The study used Landsat 5 and Landsat 8 image data on Google Earth Engine, and at the same time used GIS technology to determine the coastline changes. The research results show that using GEE shortens the processing time as well as saves storage memory and image data processing speed. Coastal changes in Sam Son city occur differently in different sections along the coast. From 2000 to 2010, the coastal erosion area increased significantly from 288,898m2 to 384,248m2 in the period 2010-2020, then decreased to 208,662m2 in the period 2020-2023. Meanwhile, the accretion area decreased from 569,563m2 to 361,499m2 in the period 2010-2020, then decreased again to 109,367m2 in the period 2020-2023. This research result helps managers make the right decisions in coastal land use management.
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