38 



JO t[Mji] 



20 t[Hz'2 



Figure 3- Variance spectra of horizontal wind component u, 



covariance u'w' 



vertical wind component w, 



covariance 9'w' 



air temperature 6 • 

 The products of spectral intensities and frequency f are plotted versus 

 spectral frequency f (Hz = c/sec). (By courtesy of Dr. K. Brocks.) 



