16 
@ 
uv 
Cc 
° 
° 14 
o 
3 
ale 
A [ 
S 10 d 
2 
= 
ce 
& 
wn 8 
LEGEND 
Recorded 
| Darbyshire 
" Bretschneider 
Bretschneider- height of 
12 combined wave trains. 
: Times shown are Pacific 
Standard. 
Significant height (feet) 
@o 
4 
t\ 
a 
2 7 
t- : 
Mt 
set 
1200 0000 12 (o} 12 [o} 12 (o} 12 (o) (o} 12 (o} 12 [o) 12 (} 12 
OCTOBER 25 26 27 28 29 OCTOBER 26 27 28 29 
Fig. |a: True time base for all waves. Fig. |b: True time base for observed waves. 
Bretschneider waves shifted 2 hours later (to the right) 
Darbyshire waves shifted 16 hours earlier (to the left) 
FIG. |:. COMPARISON OF DEEP WATER WAVE FORECASTS AND RECORDED WAVES 
FOR POINT ARGUELLO, CALIFORNIA, 26-29 OCTOBER 1950 
Significant height of each component (feet) 
6 7 8 9 10 12 13 14 15 16 7 18 
Wave Period (seconds) 
FIG.2: WAVE SPECTRUM FOR 0430 PACIFIC STANDARD TIME AT PT. ARGUELLO, CALIFORNIA 
PREDICTED BY DARBYSHIRE METHOD 
3 
