V 



- R 



TM No. 377 



The estimated vind speed (m sec" ) at the time of measure- 

 ment. 



The vertical extension of the oOyo confidence range when 

 the middle cross bar is centered on the spectrum point. 



Note: In series 120 through 12U the angle 9 appears ; indicating the azimuth 

 of the u meter with respect to the direction of propagation of the 

 wind waves . 



B-111 



