The real-time measurement of waves, winds and currents at long range and across a large area provide critical data for monitoring and understanding of environmental processes and are also particularly useful for:

The UK Met Office state:

"HF radar offers significant benefits compared to other wave measurement methods"

and summarise those advantages as:

"Detailed measurements of wave, wind and current information. Good temporal coverage, addressing the stated requirement for continuous monitoring. Good spatial coverage. Easy to service and maintain ... no ships required. No risk of shipping/fishing incidents."

For more information visit the UK Met Office