Table 3. Survey and sand sample history: 



Channel Islands Harbor, California. 



Event 



Date 



Sand 



sampling 



schedule 





Days^ 



Phase^ 



Start 

 Start 



of dredging 

 of coring 



13 



Nov. 

 Sept. 



77 

 77 



* 







CO 



>-' 

 w 



> 

 Pi 



o 



Pi 



Q 



12 



31 



Aug. 



773 



11 



10 



9 



8 



20 

 7 



23 

 3 



. July 

 June 

 Kar . 

 Feb. 



77 

 77 

 77 

 773 





¥r 



209 



V 



7 

 6 



29 

 4 



Nov. 

 Oct. 



76 

 763 



* 





122 



IV 



5 

 4 



8 



12 



Sept. 

 Aug. 



76 

 763 





^ 



52 



III 



3 

 2 



28 

 21 



June 



May 



76 

 763 



Mr 





83 



II 



1 



19 



Apr. 



76 







31 



I 



End of 



dredging 



18 



Dec. 



75 









Timespan for surface samples. 

 ^Phase of trap fill. 

 3surface sand samples (*) collected. 



June 1977 survey, thus, only five sets of samples are available for textural 

 comparisons of surface versus cored trap-fill sands. Since this report focuses 

 on textural patterns and on sampling methods for describing sediment texture, 

 the discussions in Section III concentrate on those five phases of filling 

 that were surveyed and sampled. The phases are identified by Roman numerals 

 with the largest numeral (V) representing the youngest phase of filling 

 (Table 3). 



3. Coastal Process Observations. 



Data describing coastal processes were collected daily following the 

 Littoral Environment Observations (LEO) scheme described by Balsillie (1975) . 

 These observations include (a) surf observations (surf zone width and breaker 

 period, height, direction, and type); (b) wind observations (speed and 

 direction); (c) foreshore slope; (d) longshore currents (speed, direction, and 

 distance from coast); and descriptions of (e) rip currents and (f) beach cusps. 

 These process data were mainly collected to quantify longshore transport rates 

 and to test theoretical transport model predictions and thus are discussed only 

 briefly in this report. 



