Planetary boundary-layer turbulence studies from acoustic echo sounder and in-situ measurements |
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| Authors: | B R Bean A S Frisch L G McAllister J R Pollard |
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| Institution: | (1) U.S. Dept. of Commerce, National Oceanic and Atmospheric Administration, Environmental Research Laboratories, Boulder, Colo., USA;(2) Dept. of Supply, Weapons Research Establishment, Australian Defence Scientific Service, Adelaide, South Australia |
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| Abstract: | Clear-air plume and wave-like structures are revealed in the atmospheric boundary layer by combined acoustic remote sensing and meteorological tower measurements. The magnitude of turbulent production and dissipation plus properties of velocity and temperature spectra determined from the tower measurements are well correlated with phenomena indicated by the acoustic sounder. Interpretation of either set of records is greatly enhanced by the other. For example, the onset of a sudden burst of turbulent production from the tower measurements may correspond to plume passage or breaking of stable waves recorded by the acoustic echo sounder. |
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