Effects of turbulent dispersion of atmospheric balance motions of planetary boundary layer

Details Effects of turbulent dispersion of atmospheric balance motions of planetary boundary layer Effects of turbulent dispersion of atmospheric balance motions of planetary boundary layer

Jun 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992adats...9..147l&link_type=abstract

Advances in Atmospheric Sciences, Volume 9, Issue 2, pp.147-156

Physics

Scientific paper

New Reynolds’ mean momentum equations including both turbulent viscosity and dispersion are used to analyze atmospheric balance motions of the planetary boundary layer. It is pointed out that turbulent dispersion with γ 0 will increase depth of Ekman layer, reduce wind velocity in Ekman layer and produce a more satisfactory Ekman spiral lines fit the observed wind hodograph. The wind profile in the surface layer including turbulent dispersion is still logarithmic but the von Karman constant k is replaced by k 1 = √ 1 — k/2, the wind increases a little more rapidly with height.

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