The Integrated Ocean Observing System (IOOS ® ) High Frequency Radars
U.S. IOOS ® HF Radar Network 10 Years of Experience Measuring Ocean Surface Currents Jack Harlan,...
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U.S. IOOS® HF Radar Network10 Years of Experience
Measuring Ocean Surface Currents
Jack Harlan, Ph.D.
U.S. Integrated Ocean Observing System (IOOS®)
HF Radar Program Manager
26 February 2015
CIIMAR-GOMC
Mexico D.F.
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Stakeholders
•Operated by 30 institutions
•USA, Mexico, Canada
Who Depends on it
•USCG Search and Rescue
•Oil spill response
•Water quality
•Commercial marine navigation
•Offshore energy
•Harmful algal bloom warnings
•Marine fisheries
•Criminal forensics
•Emerging - Tsunami detection
U.S. IOOS - High Frequency Radar Network
Search area decreased 66% in 96 hours
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Continental U.S.A.
Australia
South Korea
Canada
Puerto Rico and U.S. Virgin Is.
Hawaiian Is.
Spain
Mexico
High Frequency Radar Network (HFRNet)130+ Radars (USA,Mexico,Canada
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● Also, Puerto Rico and the U.S. Virgin Islands, N.Alaska, Hawaii
● Hourly solutions produced on 0.5, 1, 2 and 6 km grids
IOOS HFRNet Grid includes Mexico
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How Was IOOS HFRNet Created?
• Leveraged existing HF radar infrastructure in U.S. academia
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Growth of U.S. HFRNet
Operational budget line established for U.S. O&M
Integration of Existing Research Systems
State of CA44 radars funded
Start 2006
Continual growth a result of commitment
to network by U.S. partners
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Surface Current Data Flow for U.S. Coast Guard Search and Rescue Optimal Planning System (SAROPS)
HFRNet for Search and Rescue
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Applications
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U.S. IOOS Response to DWH
U.S. IOOS partnership demonstrated ability to:
•Quickly deploy: Gliders & HF radar, saving resources/improving safety
•Models/Imagery ingested into NOAA/Navy models
•Data assimilation improved spill response decision-making and public understanding
USM HFR
USF HFR
HFR data informed NOAA trajectory forecasts
HFR validation of SABGOM Forecast with satellite detected oil slicks
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96 hr: Without HFR36,000 Km2
96 hr: With HFR12,000 Km2
U.S. Coast Guard Search & Rescue
Actual Drifter LocationActual Drifter Location
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Shipping Navigation
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Shipping Navigation (cont.)
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National Weather Service Forecasts
• Automated Weather Information Processing System (AWIPS-2)– Every Coastal Forecast Office in the USA
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Accessing the Data in AWIPS-2
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Modeling/Data Assimilation
• West Coast Operational Forecast System (WCOFS)
Now Underway
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Biological Monitoring and Prediction
• Probability of egg occurrence
• HFR for particle trajectories
• Larval dispersal & MPAs
• Similar uses for spawning and migration studies
Winter Spring
Autumn Summer
Gong et al., 2009. JGR
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Upwelling and Phytoplankton
• Space & time pattern in flows, temperature and phytoplankton concentration.
• Upwelling – southward flow of cold nutrient-rich waters.
• Relaxation – northward flow of warmer, plankton-rich waters from south.
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The end cap on the main San Francisco municipal outfall was accidently dropped during maintenance; diffusers were temporarily shunted for ten days in October 2007
To close or not to close the beaches inshore of SF outfall?
San Francisco Sewage
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1-10 October 2007
Statistics of surface particle movements helped to show that beaching of the sewage plume was unlikely
6hr drift
12hr drift
24hr drift
San Francisco Sewage (cont.)
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Cosco Busan Tanker Spill58,000 gal of oil into San Francisco Bay - 8 Nov 2007
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Cosco Busan Spill (cont.)
• HF radar observations in the Gulf of the Farallones were able to predict which beaches were vulnerable as the oil exited the Golden Gate
• Responders focused assets effectively based on predictions
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HFRNet Data Management
• 24/7/365
• Redundant Servers
• Diagnostics
• Quality Control
• Data Storage
• Archival
LOTS of Behind-the-Scenes WORK!
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Radial Diagnostics
Radial diagnostics are summarized in a balloon with a link to the most recent radial image, file information and time histories of latencies and radial solutions
Site Diagnostics
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Network diagnostics are summarized monthly based on coverage
Site and Network Diagnostics
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GEO Global HF Radar
http://www.ioos.noaa.gov/globalhfr/welcome.html
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Global HF Radar Network
37 Countries with HF Radar for
oceanographic purposes
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GEO Global HF Radar Goals
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Looking to the Future: Innovations
Antenna Pattern MeasurementsUsing Automated Identification System (AIS)
For each vessel,
AIS provides:
Time-Stamped•Position•Bearing•Speed
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More Innovation
Antenna Pattern MeasurementsWith UAVs!
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Thank You
Please Visit the IOOS HF Radar Websiteioos.noaa.gov/hfradar
and the GEO Global HF Radar Website
ioos.noaa.gov/globalhfr/welcome.html
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