Articles | Volume 18, issue 5
https://doi.org/10.5194/acp-18-3083-2018
https://doi.org/10.5194/acp-18-3083-2018
Research article
 | 
05 Mar 2018
Research article |  | 05 Mar 2018

Nighttime wind and scalar variability within and above an Amazonian canopy

Pablo E. S. Oliveira, Otávio C. Acevedo, Matthias Sörgel, Anywhere Tsokankunku, Stefan Wolff, Alessandro C. Araújo, Rodrigo A. F. Souza, Marta O. Sá, Antônio O. Manzi, and Meinrat O. Andreae

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Latest update: 28 Mar 2024
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Short summary
Carbon dioxide and latent heat fluxes within the canopy are dominated by low-frequency (nonturbulent) processes. There is a striking contrast between fully turbulent and intermittent nights, such that turbulent processes dominate the total nighttime exchange during the former, while nonturbulent processes are more relevant in the latter. In very stable nights, during which intermittent exchange prevails, the stable boundary layer may be shallower than the highest observational level at 80 m.
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