37 



Figure 2. Buoy with gyro-stabilized mast carrying sensors for recording 

 the fluctuations in horizontal and vertical wind components and in air 

 temperature. In the foreground: small buoy for recording the wind speed 

 close to the sea surface. In the background: research vessel "Hermann 

 Wattenberg" of the Oceanographic Institute at Kiel University connected 

 by floating cable with the buoy. (By courtesy of Dr. K. Brocks.) 



ship being about 250 m - also any disturbing influence from the ship was 

 avoided. Brocks and Hasse computed variance spectra for the horizontal 

 and vertical wind components and for the air temperature which again seem 

 to support Kolmogorof f ' s -5/3 power relationship, apart from some deviations 

 in the wind fluctuations at frequencies of 0.3 to O.i; c/sec, which certainly 

 originate from sea waves . Their results are reproduced in Figure 3 where 

 the products of spectral intensity and frequency are plotted as functions 

 of the spectral frequency f for the horizontal and vertical wind components 

 u, w, for the air temperature 9 as well as for the covariances u'w' and 

 e'w'. 



