CONTENTS 



TABLES--Continued 



Page 



6 Qualitative description o£ 27-month beach trends 54 



7 Linear regression lines fitted to the beach volume trends 



and statistical significance of the 27-month trends 55 



8 Linear regression lines fitted to the beach volume trends 



and statistical significance of the long-term trends .... 55 



9 Variable beach changes from storms 59 



10 Average cumulative volume changes for four beach 



usage types 70 



11 Average cumulative volume changes by reach 7q 



12 Daily volunteer wave observations averaged by season, July 



1974 to November 1976. 73 



FIGURES 



1 Regional location map of study area 10 



2 Location map of profile lines and wave observation sites. . . n 



3 Bathymetry of the Virginian Sea 23 



4 Bathymetry of southeast Virginia shelf 24 



5 Grain -size data, Cape Henry to Cape Hatteras, and longshore 



transport direction 27 



) Bird census data, October 1974 to February 1976 30 



7 Percent of occurrence of significant wave heights 38 



8 Monthly average significant wave heights 39 



9 Monthly average significant wave periods 4q 



10 Ship observation wave rose 4]^ 



11 Norfolk International Airport wind data 43 



12 Circular diagram of windspeed indicated by length of 



arrows, and duration 44 



