outside and two inside gages operating during the period when the in situ 

 meters and the profiling meters were operating. 



43. Additional tidal records were made available by processing the 

 pressure time series of four wave gages: LAI, LA4, LB4, and LB5 . These four 

 gages were serviced on 11 August 1987, resulting in two data sets over the 

 period of interest. The first, designated by the suffix "A," extends from 



15 July 1987 to 11 August at 0700 hr. The second, designated by the suffix 

 "B," starts at 1800 hr, 11 August, and ends on 7 Sept 1987. Each data set had 

 to be reduced and plotted separately, for example LB4A and LB4B, in the subse- 

 quent analysis. 

 In situ current meters 



44. Of the 18 in situ current meters deployed at 9 sites, 13 were re- 

 covered between 9 and 12 September (Table 1) . Only 1 of the 5 meters not re- 

 covered (the single meter at CM Site 9) was attributable to catastrophic loss 

 of the mooring. The buoy at this site, in the Cerritos Channel near a major 

 container ship berth, was reported adrift the week before the planned 

 recovery. A diver search at the site on 11 September failed to locate the 

 submerged mount or meter. Because of the proximity of ship and tug traffic in 

 the area, the buoy and mooring were likely pulled off station by a vessel. 



45. The remaining unrecovered gages were the upper meter at CM Site 4, 

 both meters at CM Site 5, and the single meter at CM Site 8. The buoys at 

 these sites were intact and the moorings undamaged, but the meters were re- 

 moved at the shackle connecting the meter to the swivel. Since the shackles 

 and their safety wires had been individually inspected a week after 

 deployment, the most likely conclusion is that the meters were stolen by 

 persons using dive gear. 



46. The buoy from CM Site 2 was located onboard a commercial derrick 

 barge moored adjacent to the meter site. The elastic section of the mooring 

 had parted when the contractor attempted to move the buoy to accommodate re- 

 pair work on a nearby wharf. Divers were able to recover the three meters, 

 which were still attached to the mooring cable, and the weight at the deployed 

 location. 



47 . One week of data was recovered from the initial deployment at 

 CM Site 8. 



Current profiles 



48. Each range was profiled on the scheduled stage of tide to include a 



20 



