Physics
Scientific paper
Jun 1989
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989jatp...51..497w&link_type=abstract
Journal of Atmospheric and Terrestrial Physics (ISSN 0021-9169), vol. 51, June 1989, p. 497-506. Research supported by the Chine
Physics
13
Atmospheric Turbulence, Diffusion Coefficient, Energy Dissipation, Vortices, Artificial Clouds, Metal Foils, Mylar (Trademark), Radar Targets, Vertical Distribution
Scientific paper
Turbulent energy dissipation rates and eddy diffusion coefficients in the 66-90 km altitude range using the foil cloud technique are presented. Turbulent energy dissipation rates vary between 3.2E-5 and 8.6E-2 W/kg, and between 0.1 and 170 sq m/s for eddy diffusion coefficients. These derived quantities are in good agreement with the values discussed in the literature. The average value of the calculated spectral index for the vertical velocity is - 1.689 + or - 0.569, which is very close to -5/3. Richardson number profiles obtained show that the presence of turbulence is associated with a range of dynamic instability.
Widdel Hans-Ulrich
Wu Yong-Fu
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