Saturn

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Saturn

• Remote profiling stations

Michael Wilkin
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Saturn 01

• Location
• General arrangement
• Instrumentation
• Telemetry control
• Static instrumentation
• Timeline

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11

• Astoria Meglar Bridge Pier 11
• Columbia River North Channel
• Water depth 20m above datum
• Limited utility power available

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Instrumentation
Package 1
Package 0

• Ocean Sensors CTD
• DA OBS
• Seabird DO

• Seabird C T
• Seabird DO
• WetLabs FLNTU
• Satlantic ISUS
• Pressure
• Bottom Surface contact

• Sampling at 5Hz
• Frame speed 0.25 m/s

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Telemetry Control
Control
Telemetry

• Spread Spectrum
• Direct to base3
• 20Mbytes / day

• Fails safe! Lose communication and package stops
• Control multiplexed with data
• Commanded from base3

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Static Instrumentation

• Not an easy site to instrument
• Sunburst pCO2
• Sample takes about 15 minutes
• Other instruments possible on same frame
• Instrumentation exchange requires diving
• ADP on remote seabed frame

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Timeline

• August 2007 permission received from ODOT,
  weights and wires installed, utility power moved
  to winch station, winch installed
• September 2007 Struts installed, hydro wire and
  instrument sub-frame installed
• October 2007 instrument 0 installed, isolated
  power arrangement and radio link installed
• November 2007 work on remote winch control
• December 2007 station damaged in storm, repairs
  on going
• January 2008 station operational
• February 2008 instrumentation 2, static
  instrumentation
• April 2008 CMOP cruises

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