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Coastal Observing R&D CenterScripps Institution of Oceanography
Emerging Technologies for Ocean Sampling
Peter Rogowski, Eric TerrillScripps Institution of Oceanography – UCSD
Coastal Observing R&D CenterScripps Institution of Oceanography Autonomous Applications
• Leverage highly maneuverable and sensor rich unmanned vehicles for process studies and hypothesis testing
• Unmanned Underwater Vehicles (eg. REMUS 100, 600)
• Unmanned Aerial Systems (multirotors, both tethered and free-flying)
• Examples: air-sea interaction, optics, turbulence, other
Coastal Observing R&D CenterScripps Institution of Oceanography Autonomous Applications
Coastal Observing R&D CenterScripps Institution of Oceanography Ocean Plume Sampling
Coastal Observing R&D CenterScripps Institution of Oceanography
Instrumentation:
• ADCP (RDI)• Temperature Chain
(Precision Measurement Engineering)• Self Contained Temperature &
Salinity Sensor (Seabird)
• Data Logger (Scripps)
• Iridium Satellite Telemetry Unit
• GPS Receiver
Supplemental Monitoring
Coastal Observing R&D CenterScripps Institution of Oceanography Point Loma Ocean Outfall Survey Examples
August, 3, 2010 February, 28, 2010
* CDOM is used as a natural tracer
Coastal Observing R&D CenterScripps Institution of Oceanography CDOM Calibration
Coastal Observing R&D CenterScripps Institution of Oceanography
CDOM > 4.1
• Additional plume rise and mixing seen in 2/28/2011 survey was due to internal waves propagating through the study area.
Survey Examples
Coastal Observing R&D CenterScripps Institution of Oceanography Vertical Plume Distribution
Coastal Observing R&D CenterScripps Institution of Oceanography
Observed Plume Height vs Modeled Plume Height (NRfield Plume Model)
Vertical Plume Distribution
Coastal Observing R&D CenterScripps Institution of Oceanography Recommendations
Recommendations:
• Dedicated mooring near outfall formonitoring of stratification and subsurfacecurrents of receiving waters.
• Optimize sampling locations for quarterlywater quality sampling based on subsurfacecurrent data.
• Routine (i.e. monthly) AUV sampling ofeffluent plume to measure plume locationand dilution.
OCSD Diversion Summary (September 2012)
Coastal Observing R&D CenterScripps Institution of Oceanography
9/28/2012 (5 – 10 m)
OCSD Diversion (September 2012)
Coastal Observing R&D CenterScripps Institution of Oceanography
CDOM Profile Summary (Far-Field)Transect Spacing ~ 1kmMission Start: 8:37 ESTMission End: 14:02 EST
OCSD Diversion (September 2012)
Coastal Observing R&D CenterScripps Institution of Oceanography
CDOM(ppb)
OCSD Diversion (September 2012)
Surface Current Mapping through HF Radar
Coastal Observing R&D CenterScripps Institution of Oceanography
TRAJECTORY ANALYSES OF COASTAL DISCHARGE PLUMES
Coastal Observing R&D CenterScripps Institution of Oceanography Probability Exposure Maps
Coastal Observing R&D CenterScripps Institution of Oceanography Lake Jennings Tracer Study (Fall 2017)
Coastal Observing R&D CenterScripps Institution of Oceanography Lake Jennings Tracer Study (Fall 2017)
Rhodamine
Temperature
Coastal Observing R&D CenterScripps Institution of Oceanography