S 10- 



3 



NGRTHMRRO 



80-83 PIER END 

 80-83 PIER SURF 

 80-83 BERCH 



SOUTHHRRO 



jm TEB MflR HPR Wt JUN JUL flUO SEP OCT MOV DEC ReiOflL 

 nONTH 



Figure 29. Comparison of surface currents at the FRF pier 



Present data year 



86. Tide height statistics for 1983 are presented in Table 10. Tides 

 at the FRF are semidiurnal with both daily high and low tides approximately 

 equal. Mean range varied from 95 cm in late spring to 102 cm in January. 

 Mean sea level was 19 cm above NGVD. The highest water level for the year was 

 measured on 28 January during the time of a severe storm with waves in excess 

 of 3.6 m at the seaward end of the pier (Part IV). This extreme is within a 

 few centimetres of the highest water level measured since 1978. Water levels 

 in excess of 130 cm occurred on 25 March and 25 October during storms. 



1983 versus past years 



87. Since late I98I there has been a rising trend for the water levels 

 at the FRF (Table 10 and Figure 30). Mean sea level and other mean level 

 statistics are approximately 10 cm above prior years. This same trend has 

 been verified at nearby locations such as Hampton Roads, Va. In Figure 31, 

 the distribution of daily high, daily low, and hourly tidal heights for 1983 

 and prior years are presented for comparison. The curves show the effect of 



56 



