Title: Prediction of Instantaneous Currents in San Diego Bay for Naval Applications

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Title Prediction of Instantaneous Currents in
San Diego Bay for Naval Applications   

• Albert Armstrong, LT, USN Advisor  Prof. Peter
  Chu Second Reader Steven D. Haeger

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Title Prediction of Instantaneous Currents in
San Diego Bay for Naval Applications   

• Introduction
• Purpose
• Method
• Results
• Application
• Conclusions

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Mine Warfare
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EOD/Diving Ops Special Warfare
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• San Francisco Bay
• New York/New Jersey Harbor
• Houston/ Galveston
• Tampa Bay
• Chesapeake Bay
• Narragansett Bay
• Soo Locks
• Los Angeles/Long Beach
• Delaware River and Bay
• Tacoma
• Port of Anchorage
• New Haven

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Purpose

• Resolve littoral environmental prediction
  problems encountered from Operation Iraqi
  Freedom.
• Verify Water Quality Management Analysis
  Package (WQMAP) for NAVO .

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Method

• Utilizing WQMAP to
• Design hydrodynamic model for predicting the
  tidal driven currents of San Diego Bay.
• Compare modeled results to NOAA tide table
  predictions
• Provide operational windows for operations
  limited to water current thresholds for ANY
  location within the bay.

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Method What is WQMAP?

• Integrated hydrodynamic and water quality
  modeling system designed for use within coastal
  and fresh water environments.
• Consists of three basic components
• boundary-fitted coordinate grid creation module
• a 2D or 3D hydrodynamic model
• water quality or pollutant transport model
• Executed on a boundary fitted grid system.
• Also able to be operated on any orthogonal
  curvilinear grid or a rectangular grid, which are
  special cases of the boundary fitted grid.

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Method Why WQMAP?

• Hydrodynamic modeling program.
• Geospatial Information System (GIS)
• Easy to use graphical user interface (GUI).

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Method
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Method
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Method
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• WQMAP Animation

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Rotational Matrix
? 360? - ?
U U cos ? V sin ? V V cos ? - U sin ?
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Method
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Results
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Results
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Results
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Results
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Results
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Results
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Results
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Results
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Results
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Application 21 JAN exercise at Station 4
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Application 21 JAN MIW exercise at Station 4
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Application 21 JAN MIW exercise at Station 4
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Application 21 JAN EOD exercise at Station 4
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Application 21 JAN EOD exercise at Station 4
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Conclusions

• WQMAP models very closely to NOAA tide table
  prediction for San Diego Bay Entrance.

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Conclusions

• Further model validation utilizing observed ADCP
  data (preferably from multiple locations) is
  essential for modeled grid locations more distant
  from the bay entrance.

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Conclusions

• Future Fleet Survey Team (FST) can become
  valuable asset to NAVO littoral current modeling
  using WQMAP
• Produce bathometry needed for boundary fitted
  grid.
• Provide real time forcing data (elevation)
• Provide real time validation data (ADCP)

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Questions?