Naval Oceanographic Office Warfighting Support Center (NP ...

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Current CapabilitiesPC-Tides, Delft3D, ADCIRC• All run in 2D mode using Holland model to parameterize the storm wind field andlimited to where JTWC provides storm data.• For approaching Tropical Cyclone, forecast storm data must be put in the model every6 hours over a 72-hour period and updated as new forecasts become available.• Graphics are manual process for PC-Tides and Delft3D, ADCIRC not fully transitionedSuggested that we run SLOSH (Sea, Lake and Overland Surges from Hurricanes)• SLOSH model is accurate to within 20% and does not take into account river flow,rainfall, wind-wave interaction and wave setup.• SLOSH model is primarily statistical determined by compositing the model surgevalues from 200-300 hypothetical hurricanes.‣ Separate composite flood maps produced for each of the five Saffir-Simpsonhurricane categories.• No evidence that the SLOSH model contains any improved physicsApproved for Public ReleaseNaval Oceanographic Office
PC TIDES: Rapid Implementation• Does not account for wind-wave interaction andwave setup.• Tidal elevation & currents‣ Assimilates IHO tidal stations• 2-minute bathymetry (DBDB2)‣ Does not include effects due to localbathymetry• Does not include rivers, rainfall• Does topographic inundation utilizing lowresolution topography data• Rapid implementation (24 hours)• 2D external graphics program: person in the loopCyclone SidrPC-Tides run by NRL: predicted 15-20 ftStorm surge; close to observed!Approved for Public ReleaseNaval Oceanographic Office
Page 1 and 2: Naval Oceanographic OfficeWarfighti
Page 3 and 4: Warfighting Support Center (WSC) Mi
Page 5 and 6: Cyclone Sidr HA/DRSupported:USS Kea
Page 7: High resolution littoral and riveri
Page 11 and 12: ADCIRC: Large Grids on MSRC• Wave

Naval Oceanographic Office Warfighting Support Center (NP ...

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