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Iridium communications for data buoy applications

Iridium communications for data buoy applications. Iridium overview SAMS polar experience with Iridium Recent deployments Future plans SAMS DBCP. Satcom systems available globally to platform operators.

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Iridium communications for data buoy applications

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  1. Iridium communications for data buoy applications DBCP Workshop, La Jolla, October 2006

  2. Iridium overview • SAMS polar experience with Iridium • Recent deployments • Future plans • SAMS • DBCP DBCP Workshop, La Jolla, October 2006

  3. Satcom systems available globally to platform operators DBCP Workshop, La Jolla, October 2006

  4. Low Earth Orbit and Geostationary Earth OrbitField of View for LEO (Iridium) and GEO (Inmarsat) DBCP Workshop, La Jolla, October 2006

  5. Typical LEO polar orbit DBCP Workshop, La Jolla, October 2006

  6. Satcom systems available globally to platform operators DBCP Workshop, La Jolla, October 2006

  7. Satcom systems available to POLAR platform operators • Argos: 6 sats, 400 bits/s (will increase) • Iridium: 66 sats, 2400 bits/s (will increase) DBCP Workshop, La Jolla, October 2006

  8. Iridium overview DBCP Workshop, La Jolla, October 2006

  9. Iridium traffic DBCP Workshop, La Jolla, October 2006

  10. Current constellation DBCP Workshop, La Jolla, October 2006

  11. Replenishment plans ... Calendar Year 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Requirements and Supplier Selection Satellite R&D Satellite Qualification Satellite PDR Deploy & Launch Satellites ... 1st Launch 2 Satellites DBCP Workshop, La Jolla, October 2006

  12. Iridium ballpark costs • Dial-up + SBD modem: $1000 • SBD-only modem: $400 • Monthly fee: $14 - $30 • Call costs: ~$1 per minute • $0.1 per kbyte for files > few kbyte • Data costs: ~$1.50 per kbyte DBCP Workshop, La Jolla, October 2006

  13. SAMS activities in polar science • Role of sea ice in climate change • Several polar deployments • Use of Iridium, Orbcomm and Argos • EU GreenIce project • CryoSat validation • Opportunities during IPY 2007-8 • Development of new platforms for flux, hydrographic and meteo measurements DBCP Workshop, La Jolla, October 2006

  14. Global oceanic heat flux DBCP Workshop, La Jolla, October 2006

  15. DBCP Workshop, La Jolla, October 2006

  16. dalriada.nsm.ac.uk/php DBCP Workshop, La Jolla, October 2006

  17. Temperature record DBCP Workshop, La Jolla, October 2006

  18. Battery voltage DBCP Workshop, La Jolla, October 2006

  19. Pressure data from co-sited SVPB DBCP Workshop, La Jolla, October 2006

  20. Transfer times for 37kbyte file Mode -> 3100 bps >4000 messages DBCP Workshop, La Jolla, October 2006

  21. New suitcase buoys: GPS only DBCP Workshop, La Jolla, October 2006

  22. 9601 (‘Taladega’) SBD modem DBCP Workshop, La Jolla, October 2006

  23. dalriada.nsm.ac.uk/CryoSat DBCP Workshop, La Jolla, October 2006

  24. DBCP Workshop, La Jolla, October 2006

  25. SAMS future plans:Ice platforms for IPY • Surface meteorology • Vaisala WXT510 multi sensor • ? SVP-B drifter as met station • Net surface radiation fluxes • Kipp & Zonen CNR net radiometers • Heat flux through sea ice • Ice mass balance • Boundary layer currents • Sub-ice CTDs • GPS • Web cam • Iridium and Argos comms DBCP Workshop, La Jolla, October 2006

  26. SAMS future plans:Solar powered Iridium drifters • Transparent hulls from Technocean • Solar panel equatorial plane • SVPB sensor fit • Li-ion batteries • Iridium 9601 + GPS • Extensive diagnostics • Participation in DBCP Iridium pilot programme…. DBCP Workshop, La Jolla, October 2006

  27. DBCP Workshop, La Jolla, October 2006

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