bottom to 3 days of waves from the northeast with H in excess of 3 m was a 



m 



75-m seaward movement of the nearshore bar. At the pier, the scour hole 

 deepened to -9.8 m, its greatest depth since the pier was constructed. 



Sediment Data 



108. A summary of the 15 October sediment survey at the FRT is pre- 

 sented in Figure 44 and Table 10; sediment size distribution across one pro- 

 file as a function of distance from a reference baseline is provided. 

 Between the beach face and the nearshore trough (110 to 160 m from the base- 

 line), sand sizes were coarse and poorly sorted, with standard deviations 

 greater than 1.1 phi. On the dune and seaward of the nearshore trough 

 (>160 m) , sizes were better sorted and finer, although a clearly bimodal 

 distribution occurred on the bar crest and seaward flank locations (i.e., 216 

 and 254 m from the baseline) . 



Photography 



109. Two sets of photographic data were used to document nearshore and 

 beach conditions in the vicinity of the FRF in 1981. Daily 35mm transparen- 

 cies were taken of the beach from the pier looking both north and south (see 

 sample in Figure 45). Aerial photographic missions were also flown on the 

 flight lines and dates indicated in Table 11, usually at a scale of 1:12,000. 

 Figure 46 is a sample of this imagery obtained on 24 March 1981. 



70 



