FIGURES 



Page 



1 Map of Outer Cape Cod showing the Nauset Spit system 24 



2 Map of Nauset Spits—Eastham and Orleans, 1977 25 



3 Map of the North Beach section of the Nauset Spit system 26 



4 Location of flow sensor for overwash hydraulics measurements 29 



5 Instrument setup during an overwash 29 



6 Overwash surge velocities recorded during the 16 March 1976 



northeaster 32 



7 Frontal bore of overwash surge passing the flow sensors 34 



8 Coast Guard Beach parking lot and bathhouse facility destroyed 



7 February 1978 34 



9 Strip-chart record of overwash surge velocities, 6 February 1978.... 36 



10 Major washover deposits on Nauset Spit-Eastham resulting from the 



February 1978 northeaster 37 



11 Elevation profile across site 1 before and after the February 



1978 northeaster 37 



12 Barrier dune recession varied between 6 and 9 meters along 



Nauset Spit 38 



13 Site locations on Nauset Spit-Eastham, post-1978 storm 39 



14 Sand plug method for determining maximum depth of erosion 41 



15 Site 1 before and after February 1978 storm 42 



16 Prestorm and poststorm photos of site 1, February 1978 43 



17 Prestorm and poststorm three-dimensional plots of site 1 



throat, 1978 44 



18 Prestorm and poststorm three-dimensional plots of site 1 fan, 



1978 46 



19 Elevation transect across site 3 showing topographic changes 



resulting from the February 1978 storm 48 



20 Prestorm and poststorm three-dimensional plots of site 3 throat, 



1978 49 



21 Prrstorm and poststorm three-dimensional plots of site 3 fan, 



1978 50 



12 



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