Articles | Volume 21, issue 1
Atmos. Chem. Phys., 21, 339–356, 2021
https://doi.org/10.5194/acp-21-339-2021

Special issue: Amazon Tall Tower Observatory (ATTO) Special Issue

Atmos. Chem. Phys., 21, 339–356, 2021
https://doi.org/10.5194/acp-21-339-2021

Research article 14 Jan 2021

Research article | 14 Jan 2021

The friagem event in the central Amazon and its influence on micrometeorological variables and atmospheric chemistry

Guilherme F. Camarinha-Neto et al.

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Short summary
It was observed that friagem phenomena (incursion of cold waves from the high latitudes of the Southern Hemisphere to the Amazon region), very common in the dry season of the Amazon region, produced significant changes in microclimate and atmospheric chemistry. Moreover, the effects of the friagem change the surface O3 and CO2 mixing ratios and therefore interfere deeply in the microclimatic conditions and the chemical composition of the atmosphere above the rainforest.
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