global high frequency (hf) radar surface current mapping geo task
DESCRIPTION
Global High Frequency (HF) Radar Surface Current Mapping GEO Task. Co-Chairs Jack Harlan (USA) Lucy Wyatt (Australia) Enrique Alvarez-Fanjul (Spain). Oceanology International – London, 13 March 2012. GEO Work Plan 2012-2015. - PowerPoint PPT PresentationTRANSCRIPT
Global High Frequency (HF) RadarSurface Current Mapping
GEO Task
Co-ChairsJack Harlan (USA)
Lucy Wyatt (Australia)Enrique Alvarez-Fanjul (Spain)
Oceanology International – London, 13 March 2012
GEO Work Plan 2012-2015
• Endorses a task to plan a Global HF Radar Network for data sharing and delivery and to promote the proliferation of HF radar surface current velocity measurements.
• This GEO task is mentioned under– IN-01 Earth Observing Systems– SB-01 Oceans and Society: Blue Planet
87%
Total in situ networks 61%
59%
81%
62%73%34%48%
100%
100%
Global Component: Global Ocean Observing System for Climate
3
HF Radar Currents ?
Responding to Crisis: Deepwater HorizonU.S. IOOS partnership demonstrated ability to:
•Quickly deploy technologies: Gliders and 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
TS Bonnie
Web Portal
4
HFR data informed NOAA trajectory forecasts
Briefing Blog
HFR validation of SABGOM Forecast with satellite detected oil slicks
Outline: Goals
• Background Discussion – – Current status of HF radar globally– Existing national programs– Current status of HF data management– Existing applications examples– Radio Frequency Management
• Synergies & Challenges• Next steps
– Focused working groups?– Other?
CODAR SeaSonde Worldwide 2012• United States 130
• Canada 8
• Mexico 2
• Brazil 2
• Bahamas 2
• Honduras 2
• Norway 6
• Portugal 4
• Italy 6
• Croatia 2
• Spain 16
• Ireland 2
• Russia 1
• France 2
• Israel 2
• Japan 22
• Korea 24
• China 8
• Thailand 6
• Malta 2
• Taiwan 20
• India 12
• Vietnam 3
• Indonesia 2
• Jordan 1
• UAE 2
• Egypt 2
• Azerbaijan 2
• Australia 5
Total Sales: ~298
WERA Worldwide 2012• USA: 12• Mexico: 2• France: 6• Australia: 8• Germany: 5• UK: 2• Chile: 2• Oman: 2• Greece: 2• China: 4• Korea: 2
• Total Sales: 47
Present US HF Radar Network
• 129 Radars of Four Range/Resolutions*– Maximum Ranges: 25-200 km– Resolution: 500 m - 6 km
• Some Radars Deployed since early ’90s
• 44 CODAR Radars Purchased by California Coastal Ocean Current Monitoring Program (~2003-2004)
*Does not include 3 seasonal radars
Mid-Atlantic USA
NYC
DC
Pacific USA
Data Management• Standard interoperable self-describing
netCDF format
• Standard metadata ISO 19115 format
• Quality control– Radar level– Radial velocity level– Total vector velocity level
• Three Data Nodes
• Ten Aggregator Server Portals
IOOS HF Radar Data Flow3 Data Nodes
US Coast Guard Search & Rescue
Only 3 radars and 1 Aggregator shown
US Coast Guard Support
15
• R&D to Create HF Radar Tools • Integrated into USCG Operational SAR Optimal Planning System (SAROPS) for Mid-Atlantic in 2009• Refines search zone
96 hr: Without HFR (36,000 Km2)
96 hr: With HFR (12,000 Km2)
Applications• Oil Spill Response; 24x7 availability a must.
– HFR was used as a cost avoidance tool during oil spill in San Francisco Bay • Water Quality Monitoring
– San Francisco’s accidental discharge of secondarily-treated wastewater. – San Diego, Dept of Environmental Health uses the Tijuana River Plume Trajectory
to help guide decisions about sampling and beach closures. – Los Angeles used HFR data to determine beach closures during a major
maintenance operation of a 50-year old outflow pipe. ~$750M in unneeded repairs could have been avoided had the HFR data been available in previous years.
• Commercial Marine Navigation. – Ship captains use HFR data in a display environmental conditions at the entrance
to the Ports of Los Angeles and Long Beach Harbor. • Criminal Forensics: Conviction (fine) of a Dentist for dumping medical waste which
washed up on the New Jersey shores. Using HFR they were able to hindcast where the needles came from.
• Offshore Energy: New Jersey has funded 4 radars to support offshore energy siting. Also it is to be ingested into oceanic models that will provide better forecasts for all types of offshore energy operations.
• Marine Fisheries: HFR data are being used to monitor the dispersal of commercial fish larvae & juvenile fish survival.
• Harmful Algal Bloom (“red tides”): HFR data are being used in the forecasts for the Washington Coast.
Port Navigation
Water Quality & FisheriesPlume tracking Fisheries
Are there preferred locations for the fall squid migration to the outer shelf?
Squid prefer persistent upwelling zones.
• Start Points• Stop Points
PositiveCorrelation
Persistent Downwelling
PersistentUpwelling
NegativeCorrelation
Tracking pollution from the Tijuana River in Southern CA
Radio Frequencies• World Radiocommunications Conference Feb 2012
– Frequency bands for global use*– 4.438 - 4.488 MHz 50 kHz
– 5.250 - 5.275 MHz 25 kHz
– 9.305 - 9.355 MHz 50 kHz (not usable in the Americas)
– 13.450 - 13.550 MHz 100 kHz
– 16.100 - 16.200 MHz 100 kHz
– 24.450 - 24.650 MHz 200 kHz
– 26.200 - 26.420 MHz 220 kHz
– 41.015 - 41.665 MHz 650 kHz
– 43.350 - 44.000 MHz 650 kHz
• 25 kHz = 6 km range resolution• 50 kHz = 3 km• 150 kHz = 1 km * status depends on ITU Region
Synergies & Challenges
• Synergies– WRC frequency allocations– Data file formats
• Challenges– Data file formats– Data distribution: technical & political– Data assimilation into operational models– Frequency synchronization
An Operational HF Radar Network
21
Boston
Washington
New York