Fig. 2From: Extracting clearer tsunami currents from shipborne Automatic Identification System data using ship yaw and equation of ship responseSchematic of speed over ground (SOG), course over ground (COG), ship heading (HDG), and rate of turn (ROT). HDG-normal and HDG-parallel components of the ship velocity are \(v_{\text{n}} = {\text{SOG sin(COG}} - {\text{HDG)}}\) and \(v_{\text{p}} = {\text{SOG cos(COG}} - {\text{HDG)}}\), respectively. Tsunami currents in both the components are attachedBack to article page