1NOAA-NWS Technology Summit The Integrated Ocean Observing System (IOOS ® ) High Frequency Radars Dr. Samuel Walker Integrated Ocean Observing System Program.

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Presentation transcript:

1NOAA-NWS Technology Summit The Integrated Ocean Observing System (IOOS ® ) High Frequency Radars Dr. Samuel Walker Integrated Ocean Observing System Program NOAA, National Ocean Service November 3, 2010

2NOAA-NWS Technology Summit System Technology Applications

3NOAA-NWS Technology Summit National Surface Currents Mapping Plan ( IOOS ® National HF Radar (HFR) Network Over 100 sites currently operating

4NOAA-NWS Technology Summit Direction-Finding Radar Beam-Forming Radar - Where Am I? - Broad Beam - Compact Antenna - Wave Info Limited - How Fast Am I Going? - Narrow Beam - Large Antenna - Wave Info Easier CODAR WERA $ K $ K HF Radar: Overview of Systems

5NOAA-NWS Technology Summit HF Radar: Overview of Specifications Delivers real-time surface current data: Velocity Resolution: 2 to 4 cm/s * Range Resolution: 0.2 to 6 km ** Temporal Resolution: 10 to 60 minRange Extent: 1 to 200+ km * Velocity Accuracy: 5 to 10 cm/s *Depends on Transmit Frequency, Signal Processing ; ** Depends on RF bandwidth Uses radio wave backscatter to produce radials Current direction and velocity Regions of overlap also provide ancillary wave structure/height data

6NOAA-NWS Technology Summit HFR Data Flow and Management Primary Portal:

7NOAA-NWS Technology Summit HFR Provides Decision Support “Floatable Events”: Oil Spill/Tarball Trajectories Search and Rescue Marine Debris Tracking HAB Tracking Ice Transport Outfall Monitoring Larval/Phytoplankton Tracking Other Uses: Map/Quantify Coastal Dynamics Model Validation Circulation Modeling Input Costal and Marine Spatial Planning “Mendocino Eddy” HFR circulation with SST Halle et al 2010 (in review)

8NOAA-NWS Technology Summit8 Oil Spill Trajectory Forecasting Ingested & distributed by IOOS national HF radar data servers at Scripps & NOAA/NDBC Collected using CODAR SeaSonde ® HF radar systems (USM, USF) 2006 Safe Seas Exercise 20 Apr2 May2 May – Cap of DWH Well HFR support to COSCO Busan Data received by IOOS National Servers & NOAA/OR&R/ERD 30 Apr 2 of 3 USM radars: not operational, scheduled maintenance 2007 USM: radars restored Chronology HFR used daily for trajectory forecasting

9NOAA-NWS Technology Summit Projection of Wintertime Tarball Events Predictable events - based on strong, persistent flow from the south Allows staging of response Jeffrey D. Paduan Naval Postgraduate School

10NOAA-NWS Technology Summit Search and Rescue (SAR) 10 Integrated into USCG Operational SAR in Mid-Atlantic Nationwide adoption in 2011 Refines search zone 96 hr: Without HFR (36,000 Km 2 ) 96 hr: With HFR (12,000 Km 2 )

11NOAA-NWS Technology Summit Tracking of Marine Debris Proactive public health actions after a known spill/release Enhances forensic investigations by indicating source locations Allows tracking of floating material

12NOAA-NWS Technology Summit Support for Harmful Algal Bloom Events 12 Vera L. Trainer, NOAA Fisheries Barbara M. Hickey, University of Washington Tracking of HABs Prediction Public health implications Combines with other data sets for decision- making

13NOAA-NWS Technology Summit Automated notification when threshold exceeded 3 day wave forecast San Pedro Channel Maritime Transportation-San Pedro Channel CDIP provides waves SCCOOS provides currents

14NOAA-NWS Technology Summit Arctic Applications 14 Tracking of ocean dynamics in harsh environments Surface ice transport Ruggedized power and communications module Solar and wind power Mobile platform for rapid deployments

15NOAA-NWS Technology Summit Emerging HFR Applications With relevance to Ecosystem-Based Management (EBM), Coastal and Marine Spatial Planning (CMSP)… Mesoscale flow features – persistence of large eddies Inter-annual Variability – changes in alongshore transport Divergence & Convergence (fronts) – interfaces in the ocean Upwelling & Phytoplankton – spatial structure of pelagic habitat Larval Dispersal & MPAs – population connectivity Juvenile Salmon Survival – early ocean phase (transport & food) Terrestrial Runoff – subsidies & contaminants John Largier Bodega Marine Laboratory, UC Davis

16NOAA-NWS Technology Summit Monitoring Mesoscale Flow Features Can now map, quantify and track features like eddies and jets Implications for a range of practical and research activities Map biological aggregation zones “Mendocino Eddy” HFR circulation with SST Halle et al 2010 (in review)

17NOAA-NWS Technology Summit Upwelling and Phytoplankton Space and time pattern in flows, temperature and phytoplankton concentration. Upwelling Upwelling – southward flow of cold nutrient- rich waters. Relaxation Relaxation – northward flow of warmer, plankton-rich waters from south. Largier et al., 2006 (DSR)

18NOAA-NWS Technology Summit Winter Spring AutumnSummer Gong et al., JGR Probability of egg occurrence Use HFR for particle trajectories Larval dispersal and MPAs Similar uses for spawning and migration studies Biological Monitoring and Prediction

19NOAA-NWS Technology Summit Decision Support for Water Quality Projects NERRS Monitoring Delaware River Basin NWQMN Pilot Study LIS Water Quality NJ Coast Hypoxia Monmouth County Health MARCOOS

20NOAA-NWS Technology Summit Inspection of Hyperion Outfall Pipe ~Billion gallons of sewage to be diverted to an in-shore outfall Concern about extent of impact and public health risks Offshore and surf zone circulation had to monitored Real-time trajectory tool implemented at surfacing outfall Decision Support for Water Quality Projects

21NOAA-NWS Technology Summit21 HF Radar: Summary of Benefits Model input/validation Consistent data formats Predictive data Non-invasive Fine spatial/temporal scales Shore-based (easily serviced) Wide range of applications Repetitive measurements Easy integration with other ocean observing data Direct measure of buoyant particles or objects Indirect measure of deep circulation patterns

22NOAA-NWS Technology Summit Questions and Discussion IOOS Program Director: Zdenka Willis HFR Program Coordinator: Dr. Jack Harlan Dr. Sam Walker