2008 Annual Monitoring Report (pdf 10.9MB) - Bolsa Chica ...

Bolsa Chica Lowlands Restoration Monitoring
2008 Annual Report
Figure 2-14. Long-Term subaerial volume changes, May 1963 to October 2008
Bolsa Chica Monitoring Period Subaerial Volume Changes (2005 to 2008): Subaerial volume changes
during the three-year Bolsa Chica Monitoring Period are shown in Figure 2-15. The subaerial volume
changes were very similar to the beach width changes, with gains occurring north of the entrance
channel and losses predominating south of the entrance channel. The primary discrepancy occurred at
Transect 423+89, where the shoreline retreated but the subaerial volume increased. This apparent
inconsistency can be explained by accretion of the beach between the waterline and the berm at the
time of the October 2008 survey.
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