Near Real Time Surface Ocean Total Velocity by HFR-US-Hawaii-Total

Surface Currents

Surface ocean velocities estimated from High Frequency (HF)-Radar are representative of the upper 2.4 meters of the ocean. The main objective of near-real time processing is to produce the best product from available data at the time of processing. Radial velocity measurements are obtained from individual radar sites through the U.S. HF-Radar Network. Hourly radial data are processed by unweighted least squares on a 6km resolution grid of the Hawaiian Islands to produce near real-time surface current maps.

Data and resources

Data Subset Form

ERDDAP's version of the OPeNDAP .html web page for this dataset. Specify a subset of the dataset and download the data via OPeNDAP or in many different file…

ERDDAP Open
Make-A-Graph Form

ERDDAP's Make-A-Graph .html web page for this dataset. Create an image with a map or graph of a subset of the data.

ERDDAP Open
Background Information

Background information from the source

HTML Open
Background Information

Background information from the source

HTML Open
Background Information

Background information from the source

HTML Open
ERDDAP-griddap

ERDDAP's griddap service (a flavor of OPeNDAP) for gridded data. Add different extensions (e.g., .html, .graph, .das, .dds) to the base URL for different…

ERDDAP Open
Background Information

Background information from the source

HTML Open
OPeNDAP

An OPeNDAP service for gridded data. Add different extensions (e.g., .html, .das, .dds) to the base URL for different purposes.

ERDDAP Open
Background Information

Background information from the source

HTML Open
OGC-WMS

Open Geospatial Consortium Web Map Service (WMS)

ERDDAP Open

Additional information

Temporal extent	2018-12-01 – 2025-06-30
Date (creation)	2025-06-30
Status	onGoing
Update frequency	asNeeded
Metadata language	en
License	HF radar sea surface current velocity dataset by NOAA-NDBC is licensed under a Creative Commons Attribution 4.0 International License. You should have received a copy of the license along with this work. If not, see https://creativecommons.org/licenses/by/4.0/.
Source metadata	ISO 19115 XML
Last updated	2026-11-04
Created	2026-11-04
API	package_show