The Study of the Dynamic Structure of the Lower Atmosphere

摘要

Data on turbulent fluctuations of air temperature, wind components, and humidity collected at Davis, California, during the spring of 1967 are analyzed, and the results are summarized. Moisture flux and spectral analysis of humidity fluctuations by analog method over a wide range of the turbulence spectrum are described. Spectra and cospectra of the fluctuations of air temperature, and wind components obtained using an analog computer are presented. Semi-empirical relations for the variances of vertical velocity, temperature and humidity with stability are tested. The results obtained by the analog method of spectral analysis and the digital technique using the Fast Fourier Transform are compared. (Author)