Text Appendix C 



dmin Minimum segment-averaged water depth in a col- 



lection 



D ( m ) Directional distribution function based on S ( m ) 



^ C/), » G m ) Directional distribution function at frequency / n 



and direction G 



m 



D o (A ' ^m ) MLE estimate of directional distribution function 



at frequency f 



D r (f n • ®m ) IMLE estimate of directional distribution function 



at frequency / n after r * iteration 



^r (/ n > ® m ) Intermediate, uncorrected IMLE estimate of direc- 



tional distribution function at frequency f n during 

 r' h iteration 



i x Unit vector in the x -direction 



e y Unit vector in the .y -direction 



f ds ( nf , na ) Array element representing the frequency-direc- 



tion spectrum at frequency f (nf ) and direction 

 angle(na) 



f n n ,h frequency of a set of N discrete frequencies 



f (nf ) Element nf of an array that represents frequency 



f f p Peak frequency 



g Gravitational acceleration 



gpat(nf ) Element nf of an array of six-character strings that 



represent working gauge patterns 



hhmm Mnemonic for time of day 



H Hmo Characteristic wave height 



E2 



Appendix E Notation 



