Land-based high-frequency radars (HF radar) map ocean surface currents in near real-time. Data are used to:
- Reduce search and rescue area for the U.S. Coast Guard
- Provide emergency managers transport information for oil spill or harmful algal bloom response
- Identify fish larvae transport
- Support model validation
SECOORA funds the following HF Radar installations:
There are other HF Radar stations in the region that were funded externally:
All data from the SECOORA HF Radar stations are submitted the the IOOS HF Radar Data Assembly Center (aka HF Radar DAC). From there the data is made available through:
Quasi-real-time radial data in the LLUV/RUV format from HF Radars (both CODAR and WERA) in the SECOORA region. The HF Radar data is indexed by station “Code” as found in the Code column from the above tables. Use this link to download ideal and measured HF Radar data.
Hourly, Monthly, and Annual Gridded Surface Current Totals produced by the DAC for 5 different regions are available on this THREDDS server. Direct links to the HF Radar data for the southeast are provided as follows:
- Southeast US Hourly: 1KM, 2KM, 6KM
- Southeast US Monthly Averages: 1KM, 2KM, 6KM
- Southeast US Annual Averages: 1KM, 2KM, 6KM
Hourly Gridded Surface Current Totals for 4 different regions are provided on the NDBC THREDDS Server. A direct link to the HF Radar data for the southeast is provided as follows:
This is the archive of the gridded totals products from the above listings. It is the only place to download the individual files for each aggregated product.
- netCDF File Listing – Southeast US data is available in the “USEGC” folders (US East and Gulf Coasts).
This is the archive of radial data from individual stations in the LLUV format. It is used as input to the gridded totals products listed above. It can take 6 months to a year for data to appears at NCEI after submission to the IOOS DAC.
- LLUV File Listing – Data is organized by station code, see the tables above for the SECOORA station codes.
Note: An account is required for access to the ROWG website. Please request an account using the above link.
Technical Resources: https://github.com/rowg
The ROWG Charter:
- To foster collaboration between new and experienced HF radar operators
- To develop procedures governing HF radar operations including:
- Site logistics.
- Processing to component vectors.
- Total vector products and data management.
- To provide recommendations to users, developers, manufacturers, and program managers.
HFRadar Network (HFRNet) is used to manage and distribute, in near-realtime, ocean surface currents measured by a distributed network of shore-based HF radar systems. HFRNet provides reliable data telemetry, archiving, and integrated processing for a growing list of near real-time products in a scaleable manner for a growing user community supported by the Integrated Ocean Observing System (IOOS).