Frequency (percent) 
30 
25 
15 1 aa 
: ole 
MARTHA'S VINEYARD! 
5 
5 coal ie eal 
-t ie) 1 2 3 4 &} 6 7 8 9 10 i 12 
Deviation (feet). Hindcast height less observed height 
FIG.9 . FREQUENCY OF HEIGHT DEVIATION-HINDCAST LESS OBSERVED 
Legend 
Recorded (Marthas Vineyard) _, ——s 
17 Observed (Nantucket Lightship) » —» - 
16 Hindcosts———.———x——\—— x 
15 
14 | 
13 
Sz 
3 I 
5 
a 10 
00501 02 a5 | 2 5 
10 
20 30 «640 
50 60 70 80 
Percent greater than 
FIG.10. WAVE PERIOD FREQUENCY 
14 
—=-390_ 95 98 99 99.8 
a) 
