416 



Tides in the Mediterranean and Adjacent Seas 



section II Kv 



10103 l0- 7 cos^(/-8-6h) 



In 



/: 1 + 6-82xl0- 7 cosj2^-7h); 



In 



section III K m = 7-875 x 10~ 7 cos =^ (7- lOh) 



2jt 



In 



= ^ + 6-82 x 10~ 7 cos j, (t- 7h)- 6-82 x 10~ 7 cos ^ (f- IK) . 



For the component of the independent tide "of the first kind" the same 

 force K x acts along all three sections; it can be computed numerically ac- 

 cording to the methods previously described (p. 339). For the first part of 

 the component of the independent tide "of the second kind", the force 



48°E 



Fig. 176. Division of the oscillating areas of the Persian Gulf in three canals. 



6-82 x 10^ 7 cos(27r/12)(7— 7 h) acts in the canal sections II and III; it has 

 a nodal line at the opening into the free ocean and its form must be such 

 that the section I can co-oscillate freely. For the second part of the com- 

 ponent "of the second kind" of the independent tide, the force — 682 x 

 x 10 _t cos(2:t/12)(?— 7 h) only acts in the canal section III; it has again the 

 amplitude zero at the opening into the Indian Ocean and the canal sections I 

 and II must co-oscillate with it at the end. 



All these components can be computed by a numerical integration. It ap- 

 pears that the component of the independent tide of the first kind, as well 

 as the first part of that of the second kind have such small amplitudes that 

 their contribution to the tides of the Persian Gulf is insignificant. The second 



