APPENDIX A: SURVEY DATA 
1. Contour diagrams constructed from the bathymetric survey data are 
presented in this appendix. The profile lines surveyed are identified on each 
diagram. Contours are in %-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. 
2. Changes in FRF bathymetry diagrams constructed by contouring the 
difference between two contour diagrams are also presented with contour inter— 
vals of 0.25 m. Wide contour lines show areas of erosion. Other areas 
correspond to areas of accretion. Although these change diagrams are based on 
considerable interpolation of the original survey data, they do facilitate 
comparison of the contour diagrams. 
Al 
