SYMBOLS AND DEFINITIONS-Continued 



R index of tide type; R > 1.50 corresponds to a diurnal tide, 0.25 < R < 1.50 



corresponds to a mixed tide, and R < 0.25 corresponds to a semidiurnal tide 

 equation 



a radius of the Earth 



b distance between an arbitrary point, P, in or on the surface of the Earth 



and the center of the Moon or Sun 



c cos z, in deviation of equation (9) 



d distance between the center of the Earth and the center of the Moon or Sun 



d average value of d 



d' d-d 



fny node factor needed to adjust the standard value of Ans to the proper value 



for a specified year 



g acceleration of gravity 



h geometric height above datum 



h(t) tide elevation at time t 



he a tidal height whose probabDity is wanted 



ho mean water level referred to any identified datum 



hy5(t) tidal height at station s, year y, and time t 



h+ lowest tabulated value of h > he 



h_ highest tabulated value of h < he 



j, k, 1, m, are at integers 1, 2, 3, ... or a sequence of them 



mi , m2 masses of two attracting bodies in the universal law of gravitation 



n summation index 



II 



