## Moving Ships, ERS Image

This ERS SAR image shows two moving ships and their wakes. The ships are displaced in the azimuth direction from their wakes. From the displacement distance, the speed of the ship can be estimated. For the ship on the left, the speed is estimated to be 6 m/s. For the ship on the right, the turbulent wake, Kelvin envelops, and transverse waves can be observed. Its speed is estimated to be around 12.5 m/s.
Image Information