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

2. Introduction Introduction Purpose Purpose Method Method Results Results Application Application Conclusions Conclusions Title: Prediction of Instantaneous Currents in San Diego Bay for Naval Applications Title: Prediction of Instantaneous Currents in San Diego Bay for Naval Applications

3. Mine Warfare

4. EOD/Diving Ops & Special Warfare

7. San Francisco Bay San Francisco Bay New York/New Jersey Harbor New York/New Jersey Harbor Houston/ Galveston Houston/ Galveston Tampa Bay Tampa Bay Chesapeake Bay Chesapeake Bay Narragansett Bay Narragansett Bay Soo Locks Soo Locks Los Angeles/Long Beach Los Angeles/Long Beach Delaware River and Bay Delaware River and Bay Tacoma Tacoma Port of Anchorage Port of Anchorage New Haven New Haven

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

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

13. Method – What is WQMAP? Integrated hydrodynamic and water quality modeling system designed for use within coastal and fresh water environments. Integrated hydrodynamic and water quality modeling system designed for use within coastal and fresh water environments. Consists of three basic components: 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. 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. Also able to be operated on any orthogonal curvilinear grid or a rectangular grid, which are special cases of the boundary fitted grid.

14. Method – Why WQMAP? Hydrodynamic modeling program. Hydrodynamic modeling program. Geospatial Information System (GIS) Geospatial Information System (GIS) Easy to use graphical user interface (GUI). Easy to use graphical user interface (GUI).

15. Method

16. Method

17. Method

31. WQMAP Animation WQMAP Animation

33. Rotational Matrix U’ = U cos  + V sin  V’ = V cos  - U sin   = 360  - θ

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37. Method

38. Results

39. Results

40. Results

41. Results

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43. Results

44. Results

45. Results

46. Results

47. Results

49. 1 2 3 4 5 6 7 8 Application – 21 JAN exercise at Station 4

50. Application – 21 JAN MIW exercise at Station 4

52. Application – 21 JAN EOD exercise at Station 4

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

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

56. Conclusions Future Fleet Survey Team (FST) can become valuable asset to NAVO littoral current modeling using WQMAP: 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)

57. Questions?