0.75 
0.65 
0.55 
0.45 
VAR (m?) 
0.35 
0.25 
lpyeecawotow OO Wise 8) 6 1O-vll eS AR edit be cea ake 
32 
PROFILE SEINE 
Figure 22. Total variance from empirical eigenfunction analysis 
at each profile line 1 to 21, 32 and 33. 
im) 
a 
> 
E 
=) 
a 
= 
<q 
a 
ul 
iN 
= 
=z 
= 
a 
°o 
Fas 
DISTANCE OFFSHORE DISTANCE CFFSHORE 
(a Characteristic of profile lines 1, 2, 4, 5, (b Characteristic of profile lines 7, 8, 9, 13, 
6, 10, 11, 12, 14 to 17, 19, and 20. Spatial and 18. Spatial functions are in phase on 
functions are in phase on backshore while 
backshore while first function is negative 
second function is negative offshore. offshore. 
Figure 23. Characteristic shapes of the demeaned beach eigenfunctions for 
Long Beach Island. The first two spatial eigenfunctions are shown. 
49 
