High-Frequency radars

Brief History:

High-frequency radar technology (HF radars) is a unique technology mapping ocean surface currents and wave fields, along with other variables, over wide areas with high spatial and temporal resolution.

Taiwan Island was the first nation to have a radar network covering its entire coastline. Since then, about 400 radars were installed in 36 countries around the world.

  

Description:

These radars are fixed installations, based on land at shore. They have a long-term operational capability and are cost-effective requiring only small manpower and technical costs for maintenance due to weathering and wear. Their operation also depends on radio frequency allocation and cooperation.

 

Deployment location:

On the coastline.

  

Data collected:

This global operational system measures ocean surface currents, and thus acquires information on waves and wind. In more detail, HF radars measure:

  • Ocean circulation
  • Coastal processes
  • Contamination/pollution
  • Extreme events
  • Fronts and eddies
  • Quasi-inertial oscillations
  • Waves and surface winds
  • Upwelling
  • Etc.

   

Societal applications:

All these measurements provide essential local, regional and even global information about the ocean. Several direct applications are observed such as:

  • Weather and ocean forecasts
  • Climate projection (climate analysis and evolution)
  • Monitoring of harmful algal blooms
  • Monitoring pollutants
  • Environmental assessment and outlook
  • Research and rescue operations
  • Ship navigation and marine spatial planning
  • Ecosystem management
  • Etc.

  

If you want to learn more about this program, visit the website: http://global-hfradar.org/