(d) Color slides were taken of all sites during each visit 

 from about 100 feet south of the profiles. The slides recorded 

 the overall character of the site at each visit. 



Dates of the visits to the 17 sites, spaced at approximately 4-week 

 intervals, are listed below: 



1970 



3 to 5 August 



28 to 29 August 



26 to 27 September 



24 to 25 October 



21 to 22 November 



18 to 20 December 



1971 



1972 



15 to 17 January 



15 



to 17 January 



12 to 13 February 



12 



to 13 February 



12 to 14 March 



10 



to 12 March 



9 to 11 April 



7 



to 8 April 



9 to 11 May 



6 



to 7 May 



2 to 4 June 



4 



to 6 June 



30 June to 2 July 



30 



June to 1 July 



2 to 3 August 







26 to 28 August 







24 to 26 September 







22 to 24 October 







19 to 20 November 







20 to 21 December 







3. Data Limitations . 



An office and field analysis of the Emery [1961) method of surveying 

 (Czerniak, 1973) indicated a possibility of cumulative error that could 

 result in the seaward end of the measured profile being displaced up to 

 1 foot vertically from the actual profile. There was also a problem 

 reestablishing some of the bench marks which had disappeared between 

 surveys. For these reasons, only gross changes could reliably be analyzed, 

 and only those changes on the landward end of the profile would be 

 sufficiently accurate to quantitatively evaluate. Therefore, this report 

 is limited to an evaluation of the recession of the dune or bluff, although 

 beach-change trends may be discussed for particular profiles or beach 

 widths. 



4. Sediment Sampling and Analysis . 



Beach sediments were collected at backshore and foreshore positions 

 at each of the sites during each visit. Samples were taken only in the 

 sand beach to avoid gravel. If the beach was all gravel, no sample was 

 collected. All samples were collected from an undisturbed area along the 

 profile traverse and the location noted on the data sheet. A flat-sided 

 aluminum container was carefully scraped across the sediment surface to 

 collect only the upper 2 or 3 millimeters. About 30 to 50 grams of 

 sediment were collected, placed in watertight plastic bags, and labeled 

 with locations and dates. 



Beach samples, oven-dried and split with an Otto Microsplitter to a 

 12- to 15-gram sample, were used for analysis in the rapid sediment 



22 



