Abstract
Structures of wind and air temperature fields in the lowest air layers were presented in terms of power and cross spectra, which cover the frequency range from 0.02 to 1 cycle sec-1. Owing to the lack of stability of the spectral estimates in low frequencies, an analysis of the spectrum was chiefly centrated in the range of high frequency, where an existence of the local isotropy might be expected. The lower isotropic limit in frequency, and dimensionless constants in one-dimensional energy spectrum and the structure function were obtained. They were of the same order of magnitude with those obtained by other investigators. Some notes on cross spectrum and coherence between two turbulent fluctuations were made.
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Schedule a callMore From: Journal of the Meteorological Society of Japan. Ser. II
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