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Improving the Measurements of High Frequency Radar: Reduced Averaging Times and Bistatics

Improving the Measurements of High Frequency Radar: Reduced Averaging Times and Bistatics. Hugh Roarty, John Kerfoot, Josh Kohut, Scott Glenn. Chad Whelan, Max Hubbard. Rutgers University - Coastal Ocean Observation Lab Operations, Research & Education Center. Vessels - Satellite.

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Improving the Measurements of High Frequency Radar: Reduced Averaging Times and Bistatics

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  1. Improving the Measurements of High Frequency Radar: Reduced Averaging Times and Bistatics Hugh Roarty, John Kerfoot, Josh Kohut, Scott Glenn Chad Whelan, Max Hubbard

  2. Rutgers University - Coastal Ocean Observation Lab Operations, Research & Education Center Vessels - Satellite Satellite CODAR Ships/ Vessels Glider REMUS Data Vis. Modeling Security Leadership Education Glider Fleet Satellite Data Acquisition Stations CODAR Network 3-D Forecasts

  3. CODAR Compact HF Radar Antennas 25 MHz 13 MHz 5 MHz Separate Transmitter & Receiver Combined Transmitter & Receiver

  4. Surface Current Mapping Capability 25 MHz Radar l: 12 m Ocean l: 6 m Range: 30 km Resolution: 1 km 13 MHz Radar l: 23 m Ocean l: 12 m Range: 80 km Resolution: 3 km 05 MHz Radar l: 60m Ocean l: 30 m Range: 180 km Resolution: 6 km

  5. MARACOOS Annual Mean Surface Currents (2009) Winter Spring Summer Fall

  6. Seasonde processing

  7. Existing SeaSonde Settings SeaSonde Acquisition CSPro Analyze Spectra

  8. 1 CSS  98% 3 CSS  96% 5 CSS  92% 7 CSS  86%

  9. 5 MHz Shorter Averaging Intervals

  10. NAUS NANT BLCK MRCH WILD

  11. Average Radial Velocity RDLi_BRMR_2012_08_1300 RDLi_BRMR_2012_08_1400 RDLi_BRMR_2012_08_1500 5 cm/s 7 cm/s 10 cm/s

  12. Three Hour Average Processing

  13. Next Steps Look at totals between 3 hour and 1 hour files Adjust generation of CSQ and CSS files to measure effects

  14. 13 MHz Bistatics for surface currents

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

  16. Total Surface Currents Three Weeks August 30 – September 20, 2013 6 Radial Stations

  17. Total Surface Currents Three Weeks August 30 – September 20, 2013 6 Radial Stations & 5 Elliptical Pairs

  18. Conclusions • Shorter averaging intervals can increase tidal amplitude measurement • Bistatics increase coverage and reduce uncertainty

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