Banca de DEFESA: LUANA RAQUEL JUVINO DA SILVA

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : LUANA RAQUEL JUVINO DA SILVA
DATE: 29/08/2022
TIME: 14:00
LOCAL: meet.google.com/ggh-yaxp-wyu
TITLE:

COASTAL EROSION AND LANDSLIDE RISK MAP ON PIPA BEACH, MUNICIPALITY OF TIBAU DE SUL/RN

KEY WORDS:

Coastal Dynamics; Containment Structures; Extreme Precipitation Events; Northeast Brazil.

PAGES: 100
BIG AREA: Engenharias
AREA: Engenharia Civil
SUBÁREA: Geotécnica
SUMMARY:

The eastern coast of the Rio Grande do Norte (RN) is the domain of active cliffs and sandy beaches, often associated with mobile dunes and fixed by vegetation, intercepted by rivers and estuaries. Along this gological-geomorphological context of natural fragility of the seashore is inserted the Municipality of Tibau do Sul, specifically the stretch of Pipa Beach, where socioeconomic activities are strongly based on international tourism, with repercussions on national and regional tourism, encouraged by the opportunities of business and investments in the real estate sector, in addition to the construction of second homes. Such factors indicate the importance of tourism and real estate activity for the municipality and, consequently, with relevant public and private financing and investments on a range of seafront subjected to intense natural and anthropogenic coastal dynamics, in which disasters have occurred due to use and occupation of land carried out inadequately and based on ineffective public policies. Therefore, the current work presents a methodology for the determination of risk indices in the region of Praia de Pipa/RN based on geospatial databases, reports of historical rainfall data and wave climate reanalysis data, integrated on Geographic Information System. Vulnerability indices were calculated through weighted statistical analysis of thematic classes of geology, geomorphology, land use and occupation, slope, vegetation and extreme precipitation events. The validation of the thematic maps took place throughout the field surveys, in which coastal erosion processes were also verified and investigated, the points of flooding and surface rainwater runoff, as well as the existence of containments structures improperly implanted, which end up enhancing the process of coastal erosion in the area. From the compilation of information collected in the field and analysis of the previous maps, a map of risk of erosion and gravitational mass movements was elaborated to areas defined as high risk (R3) and very high risk (R4). The indexes were calculated through weighted statistical analysis of thematic classes of geology, geomorphology, land use and cover, slope, vegetation and extreme precipitation events. The risk map is essential to strengthen the understanding of coastal areas and provide, to the public managers responsible for the coastal environmental and the community at large, with information that assists in decisions regarding the interventions that could be taken to reduce the degree of risk and in the preparation of contingency plans, as well as for licensing and inspection decisions on coastal regions.

COMMITTEE MEMBERS:
Presidente - 350698 - VENERANDO EUSTAQUIO AMARO
Interna - 1284389 - MARIA DEL PILAR DURANTE INGUNZA
Externo à Instituição - PAULO VICTOR DO NASCIMENTO ARAÚJO - IFRN