Coastal Ocean Modeling at the Naval Oceanographic Office

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CoastalOcean Modeling at theNaval
Oceanographic Office

• Frank L Bub
• MAST Workshop
• 28 November 2006

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NAVOCEANO Coastal Models - Applications

• Special Operations - SEALS
• Currents, depth (tides), water temperature,
  density, surf
• Nearshore, beaches, estuaries, tidal zones,
  rivers
• Mine Warfare
• Currents, mine drift, depth (tides), density,
  waves
• Continental shelf, navigation channels
• Amphibious Operations
• Currents, depth (tides), waves, surf
• Continental shelf, offshore staging, transit to
  beach, surf zone
• Coastal Navigation, Anchorage, Docking
• Currents, depth (tides)
• Offshore, nearshore, channels, harbors

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NAVOCEANO Coastal Models - Considerations

• Data
• Satellite - temperature, altimetry, color, waves
• In situ - ARGO, ship CTDs, XBTs, surface
  observations
• Drifters, fixed buoys, tidal stations
• Ice coverage and character
• Assimilation validation
• Forcing
• Bathymetry
• Atmosphere - wind stress, heat fluxes (long,
  short wave)
• Boundary Condiitons - G-NCOM
• Timeliness
• Strategic planning to tactical decision-making
• Daily updates
• 2-5 day forecasts
• In time for morning brief
• Accuracy

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NAVOCEANO Coastal Models - Products

• Web services
• Feed to tactical decision aids
• Content
• Graphic
• Data fields
• Interpretation value added

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Ocean Models at NAVOCEANO

• Global Circulation Models
• NLOM
• G-NCOM
• HYCOM
• 3-D Coastal Circ Models
• SWAFS
• Regional-NCOM
• EAS / IAS / USWC
• Relocatable NCOM
• Vertical Profile (T,S) Model
• MODAS

• 2-D Coastal Circ Models
• PC-Tides
• WQMAP
• HydroMap
• RMA-2
• ADCIRC
• Wave Models
• WAM
• SWAN
• Navy Std Surf Model
• Delft3D SWAN/FLOW

3D Capability also
BLUE - GLOBAL GOLD - COASTAL
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ADVANCED CIRCULATION MODELADCIRC

• 2D BAROTROPIC ADCIRC
• New generation finite element model
• Consortium model (NRL, Notre Dame, UNC, NOAA NOS,
  )
• Coastal currents, elevation
• Rapid deployment
• Inputs winds at each node
• Fully tidal
• Run on Linux or MSRC
• FY07 (NRL)
• 3D BAROCLINIC ADCIRC
• Coastal ASW applications
• T, S, currents, elevations
• FY09

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PC TIDES

• Application of wave equation
• 2D barotropic model
• Forced by tidal stations FNMOC / local winds
• Tidal elevation currents
• Assimilates nearby tidal stations (4000 IHO
  stations)
• 2-minute bathymetry (DBDB2)
• Provides a first guess
• Rapid implementation (24 hours)
• 2D graphics, time series, constituent table
  outputs
• Hurricane storm surge module

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SIMULATING WAVES NEARSHORESWAN

• Part of U. Delft DELFT3D package
• A 3RD generation stand-alone (phase-averaged)
  wave model
• Simulates waves in deep, intermediate and
  nearshore depths
• Forecasts into surf zone
• Resolutions from regional (1/12 deg) to beach
  (10 m)
• Deliver graphics, data (NetCDF properties similar
  to WAM)
• Replacing WAM domains

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