15 



10 



Hs(nn) 



LEGEMD 



Measured 



Computed Locotion (7,22) 



I I I I I i_ 



15 16 17 18 19 20 21 22 23 24 25 26 27 

 Doy in Dec. 1959 



a. Comparison plot of H versus time for a period in December 

 1959. Locations of measured and predicted values separated 

 by about 140 km. 



— o COMPUTED 1956-1975 (58,440 RECORDS) 



Ships' Observotions at 30° N, 76°W 

 1950-1974 (44,093 Records) 



B it 



0-1.9 3.0-3.9 5.0-59 



Hs Cotegory (m) 



»■■■■■ )) ■ i t 



7.0-7.9 90-9.9 11,0-11.9 



b. Plot of percent occurrence versus H for ships' records and 

 computed data. 



_ 4 



E 

 — 2 



in 



^ 



LAKE ERIE, 



CLEVELAND, 



OHIO 



LEGEND 



Wove Gage 

 Location of Hindcast 



12 6 12 6 12 6 12 6 12 6 12 6 12 6 

 (hr) 



c. Great Lakes hindcast comparisons. 



Figure 3-10. Corps of Engineers numerical wave model results, 



3-23 



