look ma, no cables! observing the ocean with underwater gliders
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Look ma, no cables! Observing the ocean with underwater gliders. Dan Rudnick Scripps Institution of Oceanography. The world is going wireless. Wisdom. “ The chief source of ideas in oceanography comes, I think, from new observations. ” Henry Stommel. Stommel ’ s vision. Argo. - PowerPoint PPT PresentationTRANSCRIPT
Look ma, no cables!Observing the ocean with underwater glidersDan RudnickScripps Institution of Oceanography
Rudnick, SIO
The world is going wireless
Rudnick, SIO
Wisdom
“The chief source of ideas in oceanography comes, I
think, from new observations.”
Henry Stommel
Rudnick, SIO
Stommel’s vision
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Argo
•The ocean’s role in climate
•Global system for sustained observation of ocean temperature, salinity, velocity
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Glider observations on the US coast
• Gliders’ role in ocean observing system is to patrol the boundaries, connecting the coastal and open ocean
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Spray underwater glider
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Glider operations
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Gliders have carried all kinds of sensors
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A growing enterprise
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California Glider Network
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Sections on CalCOFI line 80
• Depth-average velocity
• Salinity
• Along-shore velocity
• Acoustic backscatter
• Chlorophyll fluorescence
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Dissolved oxygen and ocean acidification
•Using a proxy relationship to derive aragonite saturation (Alin et al. 2012)
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The SoCal Niño Index
•Temperature anomaly at 50 m
•We are experiencing weak El Niño conditions now.
Gulf Stream
•Cross Atlantic 2009
•Cross Gulf Stream 2004
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Gulf of Mexico
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A national glider network
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Data management
•National standards to ease exchange of data from regional glider operators
•Real-time distribution
•Quality control
•Archiving
OperationsPiloting
Glider Data Center
Users
Rudnick, SIO
A national glider network