Application of Google Earth Engine in Monitoring the Origin and Evolution of a Sandy Point on the West Flank of the Parnaíba Delta Caíque Mateus do Nascimento de Farias, Anderson Targino da Silva Ferreiran, Brunno Jansen Franco

Abstract

Sand spits are features localized where the shoreline has a sudden change in orientation as a result of wave action. Its monitoring can be performed by multispectral image processing and other measurement data through satellites such as Google Earth Engine. The present work aimed to map the coastline of the Delta of Parnaiba between 1984 and 2021, using Landsat imagery collections. The study will comprise a sand spit inserted in the Environmental Protection Area (APA) of the Delta of Parnaíba. It was observed that the growth of this sand spit can vary from less than 100 meters to more than 200 meters in a year.