Appendix A 

 Survey Data 



Contour diagrams constructed from the bathymetric survey data are pre- 

 sented in this appendix. The profile lines surveyed are identified on each 

 diagram. Contours are in half-meter increments referenced to the National 

 Geodetic Vertical Datum (NGVD). The distance offshore is referenced to the 

 Field Research Facility (FRF) monumentation baseline behind the dune. 



Changes in FRF bathymetry diagrams constructed by contouring the dif- 

 ference between two contour diagrams are also presented with contour inter- 

 vals of 0.25 m. Wide contour lines show areas of erosion. Other areas cor- 

 respond to areas of accretion. Although these change diagrams are based on 

 considerable interpolation of the original survey data, they do facilitate com- 

 parison of the contour diagrams. 



A1 



Appendix A Survey Data 



