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

Bolsa Chica Lowlands Restoration Monitoring
2008 Annual Report
Shorezone Volume Change Relative to 1963 Survey (3) (m 3 /m)
Survey
Transect Designation
Date 249+30 311+22 318+30 333+30 350+71 378+29 423+89
May 1963 0 (1) 0 (1) 0 (1) 0 (1) 0 (1) 0 (1) 0 (1)
Jul 1964 265 (1) 49 (1) 273 (1) 271 (1) - - -
Oct 1966 72 (1) -107 (1) 113 (1) 180 (1) 56 (1) 172 (1) -24 (1)
Apr 1969 90 (1) -172 (1) 18 (1) 123 (1) 339 (1) 190 (1) -230 (1)
May 1973 423 (1) 157 (1) 255 (1) 221 (1) 55 (1) 78 (1) -287 (1)
Dec 1978 497 (1) 511 (1) - - 197 (1) 83 (1) -164 (1)
Jun 1979 510 (1) 196 (1) - - 123 (1) 117 (1) -213 (1)
Apr 1982 412 (1) -166 (1) -18 (1) -2 (1) -112 (1) 31 (1) -123 (1)
Jan 1983 516 (1) 130 (1) 339 (1) 346 (1) 164 (1) 71 (1) -5 (1)
Feb 1992 484 -263 - - 40 -293 -133
May 1992 484 -204 - - -8 -207 -80
Nov 1992 477 -172 - - 98 -100 -91
May 1993 527 113 - - 157 -133 -6
Oct 1993 496 138 - - 182 207 49
Apr 1994 551 145 - - 247 93 124
Oct 1994 499 -168 - - 225 124 151
May 1995 538 74 - - 185 -65 111
Nov 1997 536 (2) 292 (2) - - 283 (2) -42 (2) 225 (2)
Mar 2002 474 79 241 (1) 296 (1) 132 -53 361
Oct 2005 - - - - - - -
Mar 2006 - - - - - - -
Jan 2007 506 813 1165 678 214 78 549
May 2007 480 712 1223 809 242 85 506
Oct 2007 493 771 1189 727 189 129 532
May 2008 446 630 957 528 94 -67 496
Oct 2008 454 660 1006 691 125 72 514
Notes:
(1) Beach profile data generated from TIN model
(2) Beach profile data interpolated at 15.24 m (50.0 ft) intervals
(3)
Shorezone volume boundary extends from the back beach to the statistical
range of closure. Shorezone volume basement elevation located at -13.83 m
NAVD88 (-45.0 ft, MLLW, 1960-1978 tidal datum epoch)
Merkel & Associates, Inc.