(8.33) [A(is.)f = 



[(HL^/lo.^^) - 1]^ + K^(//m.,^) 



[{\i/ixy - 1 + cj,(,.)]^+K^(|x/|ao)^ 



[A*(H^)]^ 



The form of the correction curve is shown in figure 8.3. 



The spectrum actually determined will be discussed in a later pajj"! oi 

 the report. The authors are indebted to Professor B. V. Korvin-Kroukovsky 

 of the Experimental Towing Tanl<: at Stevens Institute of Technology, and 

 Harlow Farmer of Woods Hole Oceanographic Institution for the derivations 

 discussion and clarification of equation (8.26) and to Mr. Farmer again for 

 calibration data. Prof. Korvin-Kroukovsky found from purely theoretical 

 considerations using an added mass of unity that the resonant frequency 

 should be near 38 seconds. Tucker [1956] has discussed the calibration 

 of essentially the same wave pole except that the depth of submergence of the 

 tanks is different, and the derivation follows his results. Tucker's results 

 show that a change in the depth of submergence of the tanks by a few feet one 

 way or the other changes the results markedly. 



80 



