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Scale analysis of atmospheric turbulence at 2 m
Author(s) -
Panofsky H. A.
Publication year - 1962
Publication title -
quarterly journal of the royal meteorological society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.744
H-Index - 143
eISSN - 1477-870X
pISSN - 0035-9009
DOI - 10.1002/qj.49708837506
Subject(s) - turbulence , meteorology , scale (ratio) , wind speed , clear air turbulence , atmospheric sciences , environmental science , eulerian path , mechanics , physics , lagrangian , quantum mechanics , mathematical physics
Various horizontal scales of the horizontal wind components are compared in stable and unstable air. In stable air the scales are small, and those along the wind are larger than the scales across the wind. In unstable air the scales are large and about the same in all directions. The speed of translation of turbulent patterns normally does not deviate much from the wind speed, with one curious exception. The ratio of the Lagrangian scale of lateral component to the Eulerian scale of lateral component averages about 5 in stable air with moderate winds, but is tentatively suggested to be considerably smaller in unstable air.