TY - JOUR AU - Nascimento Bandeira, Iris Celeste AU - Conceição, Raimundo Almir Costa da AU - Nogueira de Andrade, Milena Marília AU - Teixeira, Sheila Gatinho AU - Fonseca, Dianne Danielle Farias AU - Lima, Joao Batista Marcelo de AU - Azambuja, Andressa Macedo Silva de AU - Gregorio, Aderson Manoel da Silva AU - Miyagawa, Luciana de Jesus Penha Pamplona AU - Teles da Silva,  Silvio Tadeu AU - Aguiar, Paulo Afonso Pereira PY - 2021/06/25 Y2 - 2024/03/29 TI - FLUVIAL EROSION RISK ANALYSIS: AN AMAZON STUDY CASE: Análise de risco a erosão fluvial: um estudo de caso na Amazônia JF - REVISTA GEONORTE JA - RG VL - 12 IS - 39 SE - Artigos DO - 10.21170/geonorte.2021.V.12.N.39.01.25 UR - https://periodicos.ufam.edu.br/index.php/revista-geonorte/article/view/8380 SP - 1-25 AB - <div style="left: 243.233px; top: 975.294px; font-size: 16.6px; font-family: sans-serif; transform: scaleX(1.01637);">In the Amazon region, there are more than 69.000 people living in areas at risk of fluvial erosion processes. In addition to the large number of people impacted, studies have shown that the</div><div style="left: 141.84px; top: 1013.89px; font-size: 16.6px; font-family: sans-serif; transform: scaleX(1.02149);">erosion patterns identified on the margins of mega rivers in the Amazon region are distinct due to the fact they are related the mass movement leading to great soil displacement known as ‘Terras Caidas’. In this context, this study aims to evaluate quantitatively the degrees of risk in areas subject to fluvial erosion in three communities: Itanduba, São Braz, and Fátima de Urucurituba. The methods include hazard attributes, as well as vulnerability aspects, through the Analytic Hierarchy Process (AHP). A multitemporal analysis were made to validated the marginal erosion a t the studied areas. The results indicated a high risk of fluvial erosion on these areas. The local families lives under high and very high social vulnerability in conditions with little infrastructure and very close to the susceptible erosive riverbank. The riverbank is composed of poorly consolidated sediments, show instability indicators, and are usually associated to drainages with flow rates above 100.000 m<sup>3</sup>/s. The results and methodology brings an important contribuition to territorial planning of the region.</div> ER -