Coastal erosion; Coastal flooding; InVEST.
Coastal erosion and flooding are processes that directly affect cities near the
coastline and are responsible for causing a series of significant damages in the economic
and socio-environmental spheres. Some impacts include the loss of land and coastal
infrastructure, the loss of habitats and biodiversity, impacts on the economy and tourism, and risks to safety and health. The study area is located on the coast of Rio Grande do Norte – RN, in the municipaly of Maxaranguape. The city stands out for its tourism and development of economic activities along the coast. However, due to the development of the region and the migration of the population to the coastal zone without prior planning, the safety of the region has been compromised ad the situation is expected to worsen over the years. In order to analyze coastal Vulnerability and propose mitigation measutes for áreas with high associated risk, geoprocessing and numerical modeling tools were used to forecast future scenarios thet can serve as decison-making material for public authorities. The InVEST Costal Vulnerability module was used to perform the costal
Vulnerability analysis based on the classification of the area into five distinct categories,
ranked from low to high Vulnerability classes. This classification was determined by a
comprehensive analysis of several factors, including wave exposure, natural habitat
characteristics, geomorphology, relief and sea level changes. The studies revealed a
significant variation in the sediment balance profile over the period between 1984 and
2023. On a short-term and high-resolution scale, an emerging trend was observed,
highlighting specific areas that are particularly vulnerable to the erosion process, notably
those close to the river mouth.