Análise da dinâmica costeira da foz do Rio Punaú, município de Rio do Fogo/RN, com o apoio de geotecnologias

Abstract

Coastal zones have historically attracted populations, human settlements and their diverse activities due to the amenities they provide, their aesthetic value and the varied ecosystem services they offer. As a result, these sectors become intensely occupied and developed, often in a disorderly way. The Purpose of this work was to evaluate the coastal dynamics of an area of the down course of Punaú river, state of Rio Grande do Norte, Brazil using geotechnologies The work used images acquired by a Remotely Piloted Aircraft (RPA) in December of 2017, March of 2019 and June of 2019, supported by ground control points tracked by GNSS, generating products of high resolution analyzed is a GIS. The study area presents itself as being of high environmental sensitivity and accelerated coastal dynamics, urging detailed scale studies that can provide subsidies to support the decision-making of public managers in promoting better spatial planning. The results showed the effectiveness of the use of geotechnologies in coastal studies that pointed to alternating periods of erosion and deposition in the study area, as well as the advance and retreat of the coastline, reinforcing the need to establish public policies for spatial planning.