Beach Morphology Monitoring Program
Summary Plot 4
Figure ES-4. Seasonal
variability of the 2.0-m contour line. This
figure demonstrates the seasonal variability of shoreline change along the
CRLC. The average winter erosion and average summer accretion observed
during the first two years of the monitoring program are presented. These
large shoreline change rates tend to balance each other to produce the
lower net annual shoreline change rates that are also plotted on the
figure. Many of the surface map sites experienced significant net change
over this two-year period, e.g., 6 m/yr of net progradation at the
East Jetty site and 13 m/yr of net recession at the North Head site. Each
sub-cell shows maximum net erosion or minimum net accretion at the
southern end of the sub-cells (except in the North Beach sub-cell where
these extremes occur closer to the middle) and maximum net accretion at
the northern sub-cell boundaries. These data suggest that the sub-cell
shorelines have realigned themselves in response to the acute southerly
wave directions associated with the 1997/1998 El Niņo.
List of beach monitoring summary plots.
Select a summary plot to link to an on-line version or download an
Adobe Acrobat version for printing.