Modeling the radiative effects of biomass burning aerosols on carbon fluxes in the Amazon region.

ABSTRACT: Every year, a dense smoke haze covers a large portion of South America originating from fires in the Amazon Basin and central parts of Brazil during the dry biomass burning season between August and October. Over a large portion of South America, the average aerosol optical depth at 550 nm exceeds 1.0 during the fire season, while the background value during the rainy season is below 0.2. Biomass burning aerosol particles increase scattering and absorption of the incident solar radiation. The regional-scale aerosol layer reduces the amount of solar energy reaching the surface, cools the near-surface air, and increases the diffuse radiation fraction over a large disturbed area of the Amazon rainforest. These factors affect the energy and CO₂ fluxes at the surface. In this work, w

SUBMITTER: Moreira DS 

PROVIDER: S-EPMC7346277 | biostudies-literature | 2017 Dec

REPOSITORIES: biostudies-literature