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CALYPSO Seminar, 29 th of August of 2013

“Recent advances in the application of SeaSonde HF Radar technology to improve Operational Oceanography capacity” Jorge Sánchez, jorge.sanchez@qualitasremos.com 1 Andrés Alonso-Martirena, andres.alonso-martirena@qualitasremos.com 1 Laura Pederson, laura@codar.com 2

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CALYPSO Seminar, 29 th of August of 2013

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  1. “Recent advances in the application of SeaSonde HF Radar technology to improve Operational Oceanography capacity” Jorge Sánchez, jorge.sanchez@qualitasremos.com1 Andrés Alonso-Martirena, andres.alonso-martirena@qualitasremos.com1 Laura Pederson, laura@codar.com2 Chad Whelan, chad@codar.com2 1 QUALITAS REMOS 2 CODAR OCEAN SENSORS CALYPSO Seminar, 29th of August of 2013 La Valetta – Malta / 29th of August of 2013 / CALYPSO Seminar

  2. Who are CODAR and QUALITAS • CODAR OCEAN SENSORS www.codar.com is a high technology company founded in 1985 with headquarters in Mountain View, California • CODAR OCEAN SENSORS is the world leading manufacturer of HF Radar technology for ocean monitoring having more than 400 references worldwide • A European office in alliance with the engineering company QUALITAS www.qualitasremos.com provides highest quality support within Europe + Middle East + Africa La Valetta – Malta / 29th of August of 2013 / CALYPSO Seminar

  3. What does SeaSonde do? La Valetta – Malta / 29th of August of 2013 / CALYPSO Seminar

  4. [Paduan, J.D. and L.K. Rosenfeld, Journal of Geophysical Research, vol. 101, 1996] What does it do? Surface Currents Waves & Wind Tsunami detection • Ranges from 10 to more than 300 Km offshore • Resolution dependant on allocated bandwidth La Valetta – Malta / 29th of August of 2013 / CALYPSO Seminar

  5. What does it do? Surface Currents Waves & Wind Tsunami detection Google: “Bodega Ocean Observing Node” La Valetta – Malta / 29th of August of 2013 / CALYPSO Seminar

  6. What does it do? Surface Currents Waves & Wind Tsunami detection La Valetta – Malta / 29th of August of 2013 / CALYPSO Seminar

  7. SeaSonde HF Radar, ready to detect tsunamis La Valetta – Malta / 29th of August of 2013 / CALYPSO Seminar

  8. A Tsunami is a shallow-water gravity wave that travels at v = √(g x d) • The Tsunami orbital velocity appears as a band of surface currents approaching & receding from the HF Radar Tsunami propagation SeaSonde HF Radar, ready to detect tsunamis Linear shallow-water wave theory: height & orbital velocity are dependent La Valetta – Malta / 29th of August of 2013 / CALYPSO Seminar

  9. SeaSonde is able to detect a tsunami based on the orbital velocity of the tsunami wave SeaSonde HF Radar, ready to detect tsunamis • The under laying ocean surface current which we are normally interested in • The phase velocity of the typical ocean waves which we know through the deep water relation • On top of both => The orbital velocity of the tsunami wave which now interests us Doppler velocity measurement is made out of 3 components La Valetta – Malta / 29th of August of 2013 / CALYPSO Seminar

  10. Bathymetric depths, tsunami deepwater heights and orbital velocity lower limits for the purpose of tsunami detection SeaSonde HF Radar, ready to detect tsunamis La Valetta – Malta / 29th of August of 2013 / CALYPSO Seminar

  11. Tsunami radial vector signature when reaching the coastal shelf without background currents SeaSonde HF Radar, ready to detect tsunamis La Valetta – Malta / 29th of August of 2013 / CALYPSO Seminar

  12. SeaSonde HF Radar, ready to detect tsunamis La Valetta – Malta / 29th of August of 2013 / CALYPSO Seminar

  13. Recent advances aroundSeaSonde HF radar technology La Valetta – Malta / 29th of August of 2013 / CALYPSO Seminar

  14. SeaSonde HF Radar, low power + portable! Less than 250 watts, re-locatable by helicopter La Valetta – Malta / 29th of August of 2013 / CALYPSO Seminar

  15. SeaSonde HF Radar, low power + portable! Why not two units along the Malta Channel? La Valetta – Malta / 29th of August of 2013 / CALYPSO Seminar

  16. SeaSonde HF Radar, provides a world of utilities through a user friendly Google maps based web interface to foster HF radar data value Formats: Codar, ASCII, GRIB, netCDF, Data Layers, Kml, Kmz Protocols: OPEnDAP FTP WMS Seemless integration of information into third party IT systems La Valetta – Malta / 29th of August of 2013 / CALYPSO Seminar

  17. SeaSonde HF Radar, standard and customized value added data products:Surface Currents Short Term Prediction System La Valetta – Malta / 29th of August of 2013 / CALYPSO Seminar

  18. Modulation Multiplexing: • Share Frequency bands • Multiple systems can sweep through the same band without interfering • No need to stop data collection for critical applications when other sites transmit • Multi-Static Operation • Turn 3 radars into 6 • Enhanced coverage and data quality of 2D currents • Requires 10-11 precision oscillator • CODAR-patented GPS-disciplined oscillator waveform works worldwide La Valetta – Malta / 29th of August of 2013 / CALYPSO Seminar

  19. SeaSonde HF Radar, recent news flashes La Valetta – Malta / 29th of August of 2013 / CALYPSO Seminar

  20. Oil spill response: EU TOSCA project conclusions “Experimental campaigns have proven the benefit of HF radars as a powerful tool to provide satisfactory estimation of transport and to improve our response to oil-spill and SAR emergencies.” La Valetta – Malta / 29th of August of 2013 / CALYPSO Seminar

  21. Oil spill response: Analysis Deepwater Horizon “A substantially better lagrangian prediction skill of the HFR-derived currents is not surprising, because the considered models are not constrained by surface velocity data and also do not account for processes affecting the transport by near-surface currents such as Stokes drift and small-scale turbulent wind–wave interactions. [Yaremchuk, Deep Sea Res. II, 2013]” La Valetta – Malta / 29th of August of 2013 / CALYPSO Seminar

  22. Model improvement: PDE keynotes “High resolution models and HF radar observing are substantially helping enhance safety associated to navigation and harbor operations .” [Enrique Alvarez, PDE] SeaSonde Data 07/11/2012 24h SAMPA HR model 07/11/2012 La Valetta – Malta / 29th of August of 2013 / CALYPSO Seminar

  23. Search And Rescue: U.S. Coast Guards SAROPS “Using HF radar, the USCG has the potential to increase this success rate to 48 - 67%, thereby saving 26-45 additional people every year” [Arthur Allen, USCG] 154 km 100 km 232 km 123 km HYCOM 36,000 km2 HF Radar12,000 km2 La Valetta – Malta / 29th of August of 2013 / CALYPSO Seminar

  24. Thanks! La Valetta – Malta / 29th of August of 2013 / CALYPSO Seminar

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