2022-07-202022-07-202022-02-07NAKALE, Valeria Taakondjo. Radiative Effects Of Aerosols And Clouds On The Co2 Flux In Central Amazon. Orientador: Glauber Guimarães Cirino da Silva. 2022. 57 f. Trabalho de Curso (Bacharelado em Meteorologia) - Faculdade de Meteorologia, Instituto de Geociências, Universidade Federal do Pará, Belém, 2022. Disponível em: https://bdm.ufpa.br:8443/jspui/handle/prefix/4241. Acesso em: .https://bdm.ufpa.br/handle/prefix/4241The Amazon rainforest has a crucial role in shaping the global climate, which is why in recent decades, it has been the focus of many studies cantered around atmospheric physics, global warming, and forest land use. This work’s main objective is to study the influence of clouds and aerosols on Carbon uptake in the pristine forest of Amazonia, contributing to a better understanding of the carbon cycle in central Amazonia. The study site is in the observation area of the ATTO tower, 150 km northeast (in a straight line), winds above Manaus (AM). The observation tower used for this study, currently coordinated by INPA (LBA), is located in the municipality of São Sebastião do Uatumã, in Amazonas. The results have shown that the highest values of NEE (more negative values) are observed around 10:00 am -14:00 during the wet season, while during the dry season, the highest values are recorded at 09:00 - 15:00. It can be observed that there is a linear relationship between AOD and Relative Irradiance(f), relative irradiance (f) decreases as AOD increases, and the high values of f are found concentrated between 0.2 and 0.4 of MODIS AOD values. The fraction of diffuse PAR increases when there is an increase in AOD. The highest values of the fraction of the calculated diffuse PAR are concentrated between AOD values of 0.2 and 0.4, and NEE increases when there is an increase in PAR-total and f. There is a decrease in air temperature as the number of clouds and aerosols increases, at values of relative irradiance between 0.8-1.5 Wm². There is a decrease in canopy top temperature with cloudiness and aerosols. We concluded that at ATTO, an average increase of 18 % and 25 % in CO2 flux and NEE was observed when the AOD values ranged from 0.10 (bottom in the Amazon) to 0.30. The 18 and 25 % increase in NEE was attributed to an increase in the diffuse fraction of solar radiation concerning its direct fraction, mainly attributable to biogenic aerosols. Keywords: NEE; carbon balance; atmospheric aerosols; Amazon.Acesso AbertoNEEBalanço de carbonoAerossóis atmosféricasAmazôniaCNPQ::CIENCIAS EXATAS E DA TERRA::GEOCIENCIAS::METEOROLOGIATrabalho de Curso - Graduação - Monografia