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Ligurian Sea

Results from the Mid Atlantic High Frequency Radar Network. Ligurian Sea. Mid-Atlantic Bight. Hugh Roarty, Scott Glenn, Josh Kohut, Erick Rivera, Laura Palamara, Ethan Handel, Mike Smith - Rutgers University. U. M iddle A tlantic R egional A ssociation C oastal

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Ligurian Sea

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  1. Results from the Mid Atlantic High Frequency Radar Network Ligurian Sea Mid-Atlantic Bight Hugh Roarty, Scott Glenn, Josh Kohut, Erick Rivera, Laura Palamara, Ethan Handel, Mike Smith - Rutgers University

  2. U.. Middle Atlantic Regional Association Coastal Ocean Observing System 1000 km Cape to Cape RI Cape Cod Watersheds of the Middle Atlantic Bight To seek, discover and apply new knowledge & understanding of our coastal ocean CT MA NY 10 States PA NJ DE MD VA NC Cape Hatteras

  3. U.S. Integrated Ocean Observing System IOOS Relationships International Component Regional Component Global Ocean Observing System Vessels - Satellite Satellite CODAR Ships/ Vessels Glider REMUS Data Vis. Modeling Leadership Education 8 Universities in MARACOOS contribute to HF Radar Network 11 Regional Associations

  4. Rutgers University - Coastal Ocean Observation Lab MARACOOS Operations Center Vessels - Satellite Satellite CODAR Ships/ Vessels Glider REMUS Data Vis. Modeling Security Leadership Education Glider Fleet CODAR Network L-Band & X-Band Satellite Receivers 3-D Nowcasts & Forecasts

  5. High Frequency Radar – Since 1996 14 Long-Range 7 Medium-Range 14 Short-Range 35 Total CODARs Corporate Partner: CODAR Ocean Sensors Nested Grids of Hourly Surface Current Maps ^ Combined CODAR & Satellite Products >

  6. Long Range HF Radar Workforce Northern Operator Regional Coordinator Hugh Roarty Northern Operator Chris Jakubiak Central Operator Ethan Handel Southern Operator Teresa Garner Central Operator 2 Operators For 5 Sites Southern Operator 2 Operators For 7 Sites

  7. Future Medium Range Network13 MHz Range ~ 80 km Resolution 2 km

  8. 13 MHz Tx/Rx Antenna Single antenna at 13 MHz Transmit and Receive Radial whips no longer needed Possible to install with no guy wires and small base

  9. Network Performance

  10. Spatial and Temporal Coverage Metric

  11. Spatial and Temporal Coverage Metric

  12. Science Results

  13. NCAR Computer Language (NCL) used to plot currents 25% temporal coverage needed at each grid point

  14. NCAR Computer Language (NCL) used to plot currents 25% temporal coverage needed at each grid point

  15. NCAR Computer Language (NCL) used to plot currents 25% temporal coverage needed at each grid point

  16. Winter Spring Summer Fall 2008 2009 2010

  17. Science Results – Tracking Hurricane Irene Hurricane Irene Approaches the MARACOOS HF Radar Network

  18. Science Results – Tracking Hurricane Irene 39.5N 73W Surface Current Time Series > Total CurrentNear-Inertial Current Period 18 hours Hurricane Irene Approaches the MARACOOS HF Radar Network HF Radar Wave & Wind Direction Time Series >

  19. Science Results – Tracking Hurricane Irene Hurricane Irene Approaches the MARACOOS HF Radar Network

  20. Application Results

  21. MIDDLE ATLANTIC REGIONAL DRIVERS Tropical Storms Climate Change Ocean Circulation Critical Habitat Northeasters Population Ports

  22. MARACOOS REGIONAL THEMES & SUCCESS STORIES 1) Maritime Operations – Safety at Sea 3) Water Quality – a) Floatables, b) Hypoxia, c) Nutrients 2) Ecosystem Decision Support - Fisheries 5) Energy – Offshore Wind 4) Coastal Inundation - Flooding

  23. U.S. Coast Guard: Search And Rescue Optimal Planning System SAROPS Mid-Atlantic Operational Data Flow to SAROPS SAROPS User Interface SAROPS 96-Hour Search Area:HF Radar= 12,000 km2 SAROPS 96-Hour Search Area: HYCOM = 36,000 km2

  24. U.S. Coast Guard: Search And Rescue Optimal Planning System SAROPS 1 Statistical & 3 Dynamical Data-Assimilative Forecast Models 1) STPS U. Connecticut 4) HOPS U. Massachusetts, Dartmouth 2) NYHOPS Stevens Institute of Technology 3) ROMS Rutgers University

  25. Ecological Decision Support – Fisheries Divergent + Convergent Like Upwelling Our Approach: Develop statistical models using bottom trawl surveys and MARACOOS 3-D data to predict species distribution based on observed or forecasted MARACOOS 3-D fields. Hate Downwelling Downwelling Upwelling Downwelling Upwelling

  26. Water Quality – Nearshore Currents Alongshore Current Nearshore currents derived from single site radial currents track the movement of water quality constituents within 3 km of the beach.

  27. Offshore Energy – High Resolution Atmospheric Forecast validated with HF radar Spatial validation of Atmospheric Model with 13 MHz Multi-static HF Radar Array High Resolution Wind Resource 670 mhorizontal resolution Wind Development Area Expected Coverage

  28. Enhancing the Network with Bistatics Bistatic from SEAS Transmitter Bistatic from SEAB Seasonde Backscatter

  29. Enhancing the Network with Bistatics 3 radars can provide 6 measurements

  30. Radial Current Vectors 13 MHz

  31. Totals from Radials Optimal spacing should be 40 km 90 km

  32. Elliptical Current Vectors

  33. Totals from Radials & Ellipticals Coverage Area from only Radials

  34. Vessel Detection with HF Radar

  35. HF Radar Spectra Fixed Objects & Direct Signals Bragg Waves Bragg Waves Vessel Signal Strength (dB) Vessel Range Doppler Frequency

  36. GPS Track of YM Los Angeles

  37. Pepper Plot of All Detections

  38. Association of Detections with GPS

  39. Detections on a Map

  40. Test Case – Dace Reinauer Length: 134 m Beam: 21 m

  41. Monostatic and Bistatic Detection of the Dace Reinauer Type of Vessel: Tug IMO: 8993368 MMSI: 366238710 Length: 134 m Beam: 21 m

  42. Monostatic Detections

  43. BistaticDetections

  44. Conclusions Mid Atlantic Long Range HF Radar Network is celebrating its 10th anniversary MARCOOS is delivering Quality Controlled Surface Current Data and Forecasts to the US Coast Guard for improved SAR HF Radar Network is helping to describe the nature of the flow in the Mid Atlantic We are also developing the dual-use capability of the radar for vessel detection

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