V. 22, N. 3 (2018)



On the cover a Copernicus Sentinel-1B satellite image over Semera in northeast Ethiopia. The landscape of the Afar region is characterised by desert shrubland and volcanoes, particularly in thenorth. In this image we can see differences in altitude represented in the variations in colour. The left part of the image is dominated by yellow, signifying changes in vegetation found at higher altitudes. Two lakes, Hayk Lake and Hardibo Lake, are shown in the bottom left.

Sentinel-1B was launched in April 2016, carrying an advanced radar instrument to provide an all-weather, dayand-night supply of imagery of Earth’s surface. This image was captured on 5 April 2018.
(Credits: ESA - Image of the week: "Northeast Ethiopia")