Section X. LIST OF SYMBOLS 



Half-length of rectangular tsunami source region 



(1) Projected area of an obstacle in the vertical plane; 

 (Z) also amplitude of sinusoidal water wave. 



Half-breadth of rectangular tsunami source region 



Phase velocity of water waves 



Dimensionless drag coefficient in horizontal fluid flow 



Dimensionless momentum force coefficient (Eq. DZ4) 



Dimensionless pressure coefficient 



Variable water depth 



Value of d at mouth of open bay or e.stuary 



Total depth of tsunami surge above ground level at the front 

 or tip 



Depth of tsTjnami surge at the toe of a wall at the moment of 

 maxirnum impact 



Greatest depth of vertical column of water ejected up a wall 

 on impact of a surge 



Function of variable 



Acceleration due to gravity 



(l)Wave height; (2) wave height at edge of continental shelf; 

 (3) also height of bore (Appendix D) 



Tsunami wave height at the generating source 



Height of tsunami wave at coastal boundary (not necessarily 

 run-up height) 



Hankel transform (function of k) 



Zero-order Bessel function 



Dirnensionless wave number (= Ztt/X) 



381 



