2024-11-042024-11-042024-10-22BATISTA, Gabriela Rosa. Precipitações pluviométricas na bacia do rio Tapajós e os possíveis impactos de fenômenos climáticos. Orientador: Carlos Eduardo Aguiar de Souza Costa. 2024. 45 f. Trabalho de Curso (Bacharelado em Engenharia Sanitária e Ambiental) – Faculdade de Engenharia Sanitária e Ambiental, Campus Universitário de Tucuruí, Universidade Federal do Pará, Tucuruí, 2024. Disponível em: https://bdm.ufpa.br/jspui/handle/prefix/7394. Acesso em:.https://bdm.ufpa.br/jspui/handle/prefix/7394Given the lack of preventive measures to mitigate climate risks in the Amazon, this studyisjustified by the need for a deeper understanding of the impacts caused by extremeclimateevents. The research analyzed the influence of climate phenomena on precipitationpatternsinthe Tapajós River Basin (BHRT), covering rainfall data from 1992 to 2023, obtainedfromtheNational Water and Sanitation Agency and INMET, and climate indices related toEl Niño-Southern Oscillation (ENSO) and the Atlantic Inter-Hemispheric Gradient were analyzed with data from NOAA. Pearson's correlation and linear regression were used to examinetherelationship between precipitation and climate anomalies. The results indicate that, inmost ofthe years studied, El Niño (EN) and La Niña (LN) events had a strong impact onrainfall inthe region. In general, years with higher LN intensity were associated with a significantincrease in precipitation, while EN years resulted in a decrease in rainfall, especiallyinthenorthern part of the BHRT. The correlation between precipitation and climateindicesindicated that LN and negative dipole years were associated with higher precipitationindices,while EN and positive dipole years were related to lower indices. Fromthe results, it wasidentified that the most significant were found in years with high precipitationindices,coinciding with the presence of the negative dipole and the La Niña phenomenon. Theresultssuggest that these climate indices are useful tools for analyzing the occurrence of extreme precipitation events, especially in years where La Niña was present. Understanding thesephenomena is crucial for the development of public policies aimed at mitigating theimpactsof climate change in the region, providing greater water security and benefitinglocalpopulations.Acesso AbertoEl NiñoLa NiñaCorrelaçãoDipolo do AtlânticoCorrelationAtlantic DipoleCNPQ::ENGENHARIAS::ENGENHARIA SANITARIA::RECURSOS HIDRICOSCNPQ::CIENCIAS EXATAS E DA TERRA::GEOCIENCIAS::METEOROLOGIA::CLIMATOLOGIATrabalho de Curso - Graduação - Monografia