Over-the-horizon radar: ground-based ocean remote sensing onbasin-wide scales

摘要

The U.S. National Oceanic and Atmospheric Administration (NOAA)has been testing high-frequency, ground-based, over-the-horizon (OTH)radars for mapping winds, waves, and surface currents over very largeocean areas. Recent results show that unambiguous surface wind directioncan be mapped by combining meteorological insight with seeds fromin-situ data. Vector surface currents can be mapped using two OTH radarswhose coverage overlaps. A map of surface currents in the vicinity of ahurricane is an example