📡 Marine Evaporation Duct: Radio Ray Trace over the Sea (2D range-height)

2D range-height plot of radio rays leaving an antenna over the sea, bent by the humidity and temperature profile above the water. Set air and sea temperature, inversion, humidity, antenna and target height, and see the duct height, ray paths to the target and the refractivity profiles. Uses the same ray-tracer file as the 3D page, with four in-page numerical checks.