Part 8 



EQUATIONS FOR LEVELING THE DATA, ESTIMATING 

 THE DIRECTIONAL SPECTRUM, AND CORRECTING THE 



WAVE POLE SPECTRUM 



Leveling the Data 

 The original spot height data reported by Hydro was reassigned a position 

 code for computational purposes such that the points would fall in the first quad- 

 rant of a Cartesian coordinate system ajid such that the first column of 90 points 

 would fall on the y-axis and the bottom row of 60 points. would fall on the x-axis. 

 For simplicity in writing the following equations, let the free surface, "H, be 

 represented by an N when a spot height is considered. The pattern of the 

 points was as follows: 



. Nn 



I 



Nq, 89 



'59,89 



Nq.3 

 No,2 



0, 1 1,1 



^0,0 ^1,0 ^2,0 



N 



59,0 



58 



