Figure 10. Typical examples of time series relation of monthly data for breaker
height, wave period, and foreshore slope grain size for California and
northwestern Florida panhandle .................................. 13
Figure 11. Monthly variation in sea level for the contiguous United States. .......... 16
Figure 12. Example of long-term shoreline change rate temporal analysis using
seasonal shoreline shift data .................................... 18
LIST OF TABLES
Table 1. Force, response, and property elements for seasonal shoreline shift analysis. . 4 Table 2. Assessment of the wave steepness ratio for a selection of expressions
related to VS. --...-....*..................................... 8
Table 3. Mean annual beach grain size (foreshore slope samples) from monthly
data, and range in size ........................................ 12
Table 4. Two cases of sedimentologic response of moment measures to wave
energy levels ............................................... 12
Table 5. Seasonal range in monthly average water levels...................... 15
APPENDIX
APPENDIX: PROPAGATION OF ERRORS IN COMPUTING .................... 28
OPEN-OCEAN WATER LEVEL DATUM PLANES: USE AND MISUSE IN COASTAL APPLICATIONS
A BSTRA CT ...................................................... 29
INTRO DUCTIO N ................................................... 29
INLETS/OUTLETS AND THE ASTRONOMICAL TIDE ........... ............... 33
WATER LEVEL DATUM PLANES ....................................... 33
SYNERGISTIC TIDAL DATUM PLANE APPLICATIONS ........................ 36
EXTREME EVENT IMPACT ...................................... 36
LONGER-TERM BEACH RESPONSES ...............................37
SeasonalBeach Changes ..................................41
Long-Term Beach Changes .................................42
THE SURF BASE .............................................43
SEA LEVEL RISE .............................................47
MONERGISTIC TIDAL DATUM PLANE APPLICATIONS ........................ 48
DESIGN SOFFIT ELEVATION CALCULATIONS ......................... 48
EROSION DEPTH/SCOUR CALCULATIONS ........................... 49
SEASONAL HIGH WATER CALCULATIONS ,.......................... 49
BEACH-COAST NICKPOINT ELEVATION ............................. 50
BOUNDARY OF PUBLIC VERSUS PRIVATE PROPERTY OWNERSHIP ......... 50 INLETS AND ASSOCIATED ASTRONOMICAL TIDES ......................... 52
CO NCLUSIONS ................................................... 54
ACKNOW LEDGEMENTS ............................................. 54
REFEREN CES ..................................................... 54
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