Table 4 

 Measured and Predicted Erosion Quantities" 

































Profile 







Erosion Above MSL 









Erosion Above Peak Surge 



Level 









Velli 



iga Model 





Kriebel Mo.: i 





Vellinga Model 



Percent 



Kriebel 



Model 



Location/ 







Percent 





Percent 



Percent 



Date 



Nunber 



Actual Predicted 



Adjusted 



Actual 



Predicted Actual 



Actual Predicted 



Adjusted 



Actual Predicted Actual 



Westhanpton 



3 



52.8 



38.5 



41.1 



78 



29.5 



56 



18.2 



14.2 



15.6 



86 



20.3 



112 



3 Feb 1972 



4 



69.4 



11.6 



12.2 



18 



23.0 



33 



42.6 



2.3 



2.5 



6 



10.2 



24 





5 



51.3 



37.9 



39.8 



78 



32.3 



63 



33.8 



15.6 



16.4 



49 



19.2 



57 



Westhanpton 



3 



26.5 



43.0 



47.3 



178 



33.9 



128 



15.3 



13.7 



15.1 



99 



24.8 



162 



19 Feb 1972 



4 



35.2 



10.5 



11.6 



33 



19.1 



54 



8.5 



0.2 



0.2 



2 



9.2 



108 





5 



37.1 



20.5 



22.6 



61 



21.1 



67 



17.1 



2.6 



2.9 



17 



7.7 



45 



Long Beach 



14 



30.6 



26.2 



31.4 



103 



38.2 



125 



17.6 



9.1 



10.9 



62 



22.6 



128 



Island 



15 



26.2 



27.6 



33.1 



126 



42.5 



162 



18.2 



8.9 



10.7 



59 



30.8 



169 



19 Dec 1977 



16 



13.8 



25.8 



31.0 



224 



35.2 



255 



8.0 



5.9 



7.1 



89 



16.3 



204 





17 



34.5 



27.4 



32.9 



95 



43.4 



126 



20.0 



7.7 



9.2 



46 



33.6 



168 





18 



6.0 



20.8 



25.0 



416 



41.7 



695 



0.0 



7.3 



8.5 



- 



29.0 



- 



Duck 



186 



31.7 



20.6 



30.9 



97 



32.7 



103 



10.1 



3.0 



4.5 



45 



23.1 



229 



14 Nov 1981 



188 



41.3 



34.5 



51.8 



125 



48.1 



112 



18.5 



13.6 



20.4 



110 



37.8 



204 





190 



37.4 



44.0 



66.0 



176 



53.7 



143 



19.3 



20.3 



30.5 



158 



44.9 



233 



* Quantities in itr/m. 

 ** Adjustment based on an additional 5 percent per hour over 5 hr, 50 percent maximum. 



Kriebel Model 



Vellinga Model 



60- 











a 







50- 













D 





40- 









■ 



D 



1 



D 

 D 









JO 







■ 









D 



20- 



■ 



■ 



■ 



■ / 







 ■ D 





: 



10- 







■ 







' 





n- 























1 









1 ' 



















60- 















50- 







D 





D 





40- 













U° 



30- 



n 



° ■ 



D 



/u 







20- 









a 



■ 







10- 



/ 



■ 





□ 





c 





/ ■ 



■ 







■ 







1 



1 



1 







1 1 1 



Actual Erosion. m3/rr 



Actual Erosion, m3/rr 



□ Abov«-USL Changn 



• Abov« -Surg* LavtJ 



Figure 15. Actual and computed volume changes for the Kriebel 

 and Vellinga models 



50 



