English Channel and shipping lanes, satellite radar image. Hundreds of radar images spanning the period 2016 to 2018 have been combined into a single image to show the busy maritime traffic along the English Channel's shipping lanes. The boats are colour-coded by year: 2016 (blue), 2017 (green) and 2018 (red). Busy cross-Channel routes are seen at right between Dover and Calais and other nearby ports. Image data obtained by the Copernicus Sentinel-1 satellites. Image published in 2019.