i
Turbulence Structures in the Very Stable Boundary Layer Under the Influence of Wind Profile Distortion
-
2022
-
-
Source: Journal of Geophysical Research: Atmospheres, 127(20)
Details:
-
Journal Title:Journal of Geophysical Research: Atmospheres
-
Personal Author:
-
NOAA Program & Office:
-
Description:In very stable boundary layers (VSBL), a “cocktail” of submeso motions routinely result in elevated mean wind speed maxima above the ground, acting as a new source of turbulence generation. This new source of turbulent kinetic energy enhances turbulent mixing and causes mean wind profile distortion (WPD). As a results, this transient distortion in the wind profile adjusts the classical log-law. Addressing how WPD-induced turbulence regulates flow structures, turbulent fluxes, and transitions in stability regimes across layers remains a challenge. Eddy covariance data measured at four levels on a 62-m tower are employed to address these questions. It is shown that the WPD initiates large turbulent eddies that penetrate downward,
-
Keywords:
-
Source:Journal of Geophysical Research: Atmospheres, 127(20)
-
DOI:
-
ISSN:2169-897X;2169-8996;
-
Format:
-
Publisher:
-
Document Type:
-
Rights Information:Other
-
Compliance:Library
-
Main Document Checksum:
-
Download URL:
-
File Type: