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High-Frequency Radar Observations of Ocean Surface Currents
2013
Annual Review of Marine Science
This article reviews the discovery, development, and use of high-frequency (HF) radio wave backscatter in oceanography. HF radars, as the instruments are commonly called, remotely measure ocean surface currents by exploiting a Bragg resonant backscatter phenomenon. Electromagnetic waves in the HF band (3-30 MHz) have wavelengths that are commensurate with wind-driven gravity waves on the ocean surface; the ocean waves whose wavelengths are exactly half as long as those of the broadcast radio
doi:10.1146/annurev-marine-121211-172315
pmid:22809196
fatcat:m4cws7pg7vg2vomyephralbdgq