After 40 years, how are HF radar currents now being used?

Abstract

The ability of coastal HF radars to map ocean surface currents was demonstrated in the early 70s at NOAA in the U.S. Since that time, there was a push to develop this technology into a useful, affordable tool that would fill a big gap: nothing else out there could map surface currents continuously over space and time, and the same holds true today. But who would use these data?