No. Page 



32 Average ocean shoreline change rates at Virginia Beach for four 



successive surveys between 1925 and 1980: (a) 1925-1942(44), 



(b) 1942(44)-1962, (c) 1962-1980 69 



33 Extreme ocean shoreline excursions from about 1850 to 1980, 



Cape Henry to Cape Hatteras 70 



34 Sound shoreline change rates for the reach between Back Bay, Va., 



and 12 km west of Cape Hatteras 72 



35 Standard deviation of sound shoreline position changes between 



Cape Henry and Cape Hatteras 73 



36 Average sound shoreline change rates, for the periods from about 



1850 to 1915 and from about 1915 to 1980, between Nags Head 



and Cape Hatteras, N. C 74 



37 Changes in ocean and sound shorelines adjacent to Oregon Inlet, 



N. C, for five surveys between 1852 and 1980 75 



38 Migration rates of Oregon Inlet throat for five survey intervals 



between 1849 and 1980 76 



39 Relative locations and orientations of the narrowest section 



of the Oregon Inlet throat, 1849-1980 77 



40 Plan view changes in land area in the vicinity of Oregon Inlet, 



N. C, 1849-1980 77 



41 Changes in mean high-water shoreline at Cape Point, Cape 



Hatteras, between 1852 and 1980 79 



42 Relative plan area of the subaerial projection for Cape 



Hatteras, 1852-1980 80 



43 Location of Cape Hatteras point between 1852 and 1980 80 



44 Changes in mean high-water shoreline at Cape Henry between 



1852 and 1980 81 



45 Shoreline change rates, averaged by survey period, for east- 



facing ocean shorelines and west-facing sound shorelines .... 83 



46 Shoreline change rates, averaged by survey period, for west- 



facing ocean and sound shorelines 83 



47 Island width changes between about 1850 and 1980, from Cape 



Henry to west of Cape Hatteras 87 



48 Island width change rates, 1852-1917 and 1917-1980, between 



Kitty Hawk and Cape Hatteras, N. C 88 



49 Rates of position change of island axis between about 1850 to 



1980, Cape Henry to west of Cape Hatteras 89 



50 Rates of position change of island axis, 1852-1917 and 



1917-1980, between Kitty Hawk and Cape Hatteras, N. C 90 



51 Relationship of apparent ocean shoreline change to Capes, 



shoref ace-connected ridges, and Oregon Inlet 94 



