Greenland ice sheet undulations in low solar illumination angle Sentinel-3 imagery illuminated by low solar angles, this late 2016 Sentinel-3 OLCI image spectacularly features Greenland ice sheet undulations. Sentinel-3 OLCI 864 29 October, 2016 1415 UTC Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window) Related