Figure 39. Example of hand-written field notes listing times and data 



values of East Pass current measurements 100 



Figure 40. Time series plots of current speed (bottom) and direction (top) 101 



Figure 41. Morphologic indicators of littoral drift along natural and 



modified shorelines 106 



Figure 42. Changes in shoreline position near St. Marys entrance, Florida- 

 Georgia (from Kraus and Gorman 1993) 107 



Figure 43. Example of a hand-annotated hydrographic map from a Florida 



project site 1 10 



Figure 44. Digitally collected hydrographic data from a Florida project 



site 112 



Figure 45. Surface grid computed by CPS-3 based on the data shown in 



Figure 44 113 



Figure 46. Contoured bathymetry of the same area shown in Figures 44 



and 45 115 



Figure 47. Overall growth of an ebb-tidal shoal over 24 years is shown by 



the advance of the 15-ft isobath 116 



Figure 48. Isopach map showing overall changes in bottom configuration 



between 1967 and 1990 at East Pass, Florida 117 



Figure 49. Growth of the ebb-tidal shoal at East Pass, FL 118 



Figure 50. Classification of beach change models (Kraus 1989) 121 



Figure 51. Flowchart for studies of coastal geology 125 



List of Tables 



Table 1. Tidal Datums and Definitions, Yaquina Bay, Oregon 20 



Table 2. Low Water (chart) Datum for IGLD 1955 



and IGLD 1985 21 



Table 3. Self-Contained and Cable-Telemetry Wave Gages; 



Advantages and Disadvantages 33 



Table 4. Wave Gage Placement for Coastal Project Monitoring 35 



