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Near-Real Time Subtidal Surface Ocean Velocity, U.S. West Coast, 2km Resolution

Published by Coastal Observing Research and Development Center, Scripps Institution of Oceanography | National Oceanic and Atmospheric Administration, Department of Commerce | Metadata Last Checked: January 26, 2026 | Last Modified: 2024-08-12T22:51:33.000+00:00
Surface ocean velocities estimated from HF-Radar are representative of the upper 1.0 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 2km resolution grid of the U.S. West Coast to produce hourly near real-time surface current maps. The subtidal current is estimated by applying a 25 hour moving average filter to the hourly surface current maps.

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