2. Sand Samples 



At each site where LEO observations are made, the obseryer is 

 asked to collect, once a month, a sand sample of about 100 to 150 grams 

 from the wetted zone of the foreshore. 



The samples are processed at CERC by a Rapid Sediment Analyzer 

 as described by Duane and Meisburger.* Computer techniques are used 

 in calculating size distributional characteristics of the samples. 

 Characteristics calculated are the cumulative size- frequency curves, 

 median and mean diameters, standard deviation, skewness, and kurtosis. 



Cumulative size-frequency curves are presented in Appendix E. These 

 curves were computed and drawn by computer techniques . Each figure con- 

 tains curves for only those samples collected at the indicated site in 

 1968. The figures have been reduced to page size for this report. The 

 remaining size characteristics (median and mean diameter, standard devi- 

 ation, skewness and kurtosis) are summarized in tables in Appendix F. 



Presently, this is the only analysis being made of the beach material 

 samples; however, the samples are retained at CERC to permit other types 

 of analyses if desired. 



3. Photographs 



As part of the LEO program each observer is asked to take three 

 pictures of the beach in the immediate area of the reference ..pole. The 

 three photos form a panoramic view - upcoast and downcoast, and toward 

 the ocean. The observer is asked to take pictures, monthly with supplied 

 film. The photographs record general conditions at each site. 



Appendix G contains the photographs taken at sites where a camera 

 was available. Only photographs of the upcoast and downcoast views are 

 included because these pictures show, the seasonal variation of the beach 

 more clearly than the overall view toward the ocean. 



Duane, D. B. and Meisburger, E. P. (1969), "Geomorphology and Sediments 

 of the Nearshore Continental Shelf, Miami to Palm Beach, Florida, 

 Coastal Engineering Research Center Technical Memorandum No. 29. 



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