The European Space Agency (ESA) is Europe’s gateway to space. Its mission is to shape the development of Europe’s space capability and ensure that investment in space continues to deliver benefits to the citizens of Europe and the world.
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Sentinel-1A’s radar acquired the two images that make up this interferogram in its 'Interferometric wide Swath' mode on 9 and 21 August 2014 over Sicily, Italy. The rainbow-coloured fringes mainly denote differences in topography – hence the steep slopes of Mount Etna can be seen clearly. The second image was acquired after the first cycle of the Sentinel-1 satellite in its reference orbit. The interferogram shows a very good quality, demonstrating the sensor’s excellent capability for interferometric applications.