Look ma, no cables! Observing the ocean with underwater gliders Dan Rudnick Scripps 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

Rudnick, SIO Argo The ocean’s role in climate Global system for sustained observation of ocean temperature, salinity, velocity

Rudnick, SIO Glider observations on the US coast Gliders’ role in ocean observing system is to patrol the boundaries, connecting the coastal and open ocean

Rudnick, SIO Spray underwater glider

Rudnick, SIO Glider operations

Rudnick, SIO Gliders have carried all kinds of sensors

Rudnick, SIO A growing enterprise

Rudnick, SIO California Glider Network

Rudnick, SIO Sections on CalCOFI line 80 Depth-average velocity Salinity Along-shore velocity Acoustic backscatter Chlorophyll fluorescence

Rudnick, SIO Dissolved oxygen and ocean acidification Using a proxy relationship to derive aragonite saturation (Alin et al. 2012)

Rudnick, SIO 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

Rudnick, SIO Gulf of Mexico

Rudnick, SIO A national glider network

Rudnick, SIO Data management National standards to ease exchange of data from regional glider operators Real-time distribution Quality control Archiving Operations Piloting Glider Data Center Users

Rudnick, SIO A national glider network