30
25
20
15
10
5
0
Oct
Nov
Dec
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Month
Figure 4. Mean annual rainfall by month (data obtained from Desert Water Institute; http://www.wrcc.dri.edu/cgi-
bin/cliNORMNCDC.pl?caoric.
N
Flood
Flood
Pacific
shoal
Ocean
Wing
Wing spit
Stone
Ebb preference
Ebb shoal
Lagoon
(ephemeral)
Discharge / tidal exchange
ence
prefer
Flood
Wing spit
Wave
crests
Elevated
Elevated land/barrier
Figure 5. Transporting mechanisms at a breach.
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