Influence of submeso phenomena on turbulent parameters under different conditions of stability of the NBL of the Amazon
DOI:
https://doi.org/10.5902/2179460X82079Keywords:
Submeso-scale, Turbulent parameters, Amazon rainforestAbstract
The Submeso-scale flow is very important under conditions of stable stratification, which often occurs at the NBL, as this type of flow can produce intermittent turbulence. Thus, it is proposed to identify submeso scale signals and verify their relationship with the variability of some turbulent parameters, especially the height of the inflection point, on three nights with different atmospheric stability conditions. High frequency data (20 Hz) were used, which were measured by sonic anemometers at the 10 vertical levels of the micrometeorological tower, located at an experimental site in central Amazonia (site K34). In these data, the Morlet wavelet transform was applied to the variable u (zonal wind) to identify the intensity of the submeso signal. The data were also used to calculate the turbulent parameters (z/L, u*, H, and inflection point) to verify the influence of submeso phenomena. The results show that submeso phenomena can affect the height of the inflection point.
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