High Frequency Radar Radial Ranges
type: Dataset
description: This dataset show the generalized coverage area (as of October 2014), of High Frequency (HF) radar systems across the US. HF radars measure the speed and direction of ocean surface currents in near real time. These radars can measure currents over a large region of the coastal ocean, from a few kilometers offshore up to 200 km, and can operate under any weather conditions. They are located near the water's edge, and need not be situated atop a high point of land. Dozens of institutions own and operate HF radars within the United States, and a majority are coordinated through the US Integrated Ocean Observing System. Ocean surface current data from these radars are shared on national servers -- the National Data Buoy Center and Scripps Institution of Oceanography -- who deliver the data to anyone who needs it. A process is currently underway to further define the spatial footprint of each radar based on local factors such as nearby obstructions, local wind-wave environment, etc. When available, this data will be integrated into MarineCadastre.gov. In the meantime, if specific information regarding a local radar system is required, please contact Dr. Jack Harlan, Project Manager for the HF Radar Ocean Remote Sensing, US IOOS Program Office.
identifier: High Frequency Radar Radial Ranges
keyword: amerigeo
keyword: amerigeoss
keyword: ckan
keyword: frequency
keyword: geo
keyword: geoss
keyword: hf
keyword: high-res
keyword: long-range
keyword: national
keyword: north-america
keyword: radar
keyword: standard-range
keyword: transmit
keyword: united-states
issued: 2025-11-21T07:11:34.096436
modified: 2015-02-26
language: {en-US}
contact point: Organization
  fn: MarineCadastre.gov Data Steward
spatial: Location

US Migrating
type: Agent

Web Page
type: Distribution
media type: text/html
format: HTML
access URL: http://coast.noaa.gov/arcgis/rest/services/MarineCadastre/
issued: 2021-03-11T00:26:03.574102
modified: 2025-11-21T07:11:34.086633

Web Page
type: Distribution
description: default.aspx
media type: text/html
format: HTML
access URL: http://www.marinecadastre.gov/data/default.aspx
issued: 2021-03-11T00:26:03.574109
modified: 2025-11-21T07:11:34.087055

Web Page
type: Distribution
media type: text/html
format: HTML
access URL: http://www.coast.noaa.gov/
issued: 2021-03-11T00:26:03.574112
modified: 2025-11-21T07:11:34.087446

Web Page
type: Distribution
media type: text/html
format: HTML
access URL: http://www.ioos.noaa.gov/hfradar/
issued: 2021-03-11T00:26:03.574115
modified: 2025-11-21T07:11:34.087826