We are continuing our Monday to Friday satellite imagery brain teasers to provide a fun distraction for adults and kids alike during these uncertain times. So, what well-known location, feature or landmark on Earth are we looking at today? Check back tomorrow when we will reveal the answer and see if you guessed right! The answer to Day 15's challenge is at the bottom of this page. Ready? Steady? Here we go…

© 2009 DigitalGlobe, Inc., a Maxar company

Day 15 answer: Oslo, Norway. The image shows a Digital Elevation Model (DEM) of Oslo and the area surrounding the Inner Oslofjord. It is an extract of WorldDEM, a global coverage elevation dataset with 12 m pixel spacing and an absolute vertical accuracy of less than 4 m. WorldDEM was derived from three years of Synthetic Aperture Radar (SAR) imagery acquired by the TerraSAR-X and TanDEM-X satellites. During this period the two satellites orbited in a closely controlled formation, typically 250 and 500 m apart.

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