John Warner, US Geological Survey, Coastal and Marine Geology ...

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wind speed magnitude (m/s)Different SST creates different windspeed"3 Way Coupling" Difference of3 Way - 2 WayDifference of3 Way - 1 WayDiff in wind speed surf stress wave generation surgeNeed both accurate SST <strong>and</strong> track to get correct surge.
t mean /(t current +t wave )Bottom propertiesdifferent formulations to includebottom stress in circulationmodels.Non-linearenhancementwave-mean bottomstress• Linear drag• Quadratic drag• Logarithmic: Zo• Zo + bedforms (ripples)• Zo + bedforms + waves t current /(t current +t wave )Look at waves as an example.Winds - > waves -- > bottom stress --> currents --> surgeGrant <strong>and</strong> Madsen (1986) Ann. Rev.Fluid Mech. 18:265-305
Page 1 and 2: Development of acoastal modelingsys
Page 3 and 4: Carolinas Coastal Change Processes
Page 5 and 6: LatitudeModelsetupATMOSPHERE12000 m
Page 7 and 8: CSTMS - 'Sediment Transport'Warner,
Page 9 and 10: Hurricane Isabelhttp://coastal.er.u
Page 11 and 12: Sensitivity experiments• Surface
Page 13: ModelledResponse of the Atm modelEf
Page 17 and 18: SurgeModel results at Sept 18 at 12
Page 19: Issues• Atm model:- initializatio

John Warner, US Geological Survey, Coastal and Marine Geology ...

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