Metocean Reference System 1. Coordinate system A right-handed coordinate system. The angles are measured from North axis in a clockwise direction. North-East-Down 2. Wave Wave direction: Coming from Direction from which the waves are coming, i.e 90 degrees → wind is coming from East 3. Wind Wind direction: Coming from Direction from which the wind is blowing, i.e 90 degrees → wind is coming from East Wind levels are measured from the mean water level positive upward 4. Current Current direction: Going to Direction wich the current is flowing to, i.e. 90 degrees → current is going to East Current levels are measured from the mean water level positive downward Metocean SIMA Reference System