Friday, April 01, 2011

Satellites need white balance too!

To take accurate images cameras need to be calibrated, and the same goes for satellites that are taking images of the earth to provide us with maps. Recently eight sites have been named as places that satellites can shoot at and use to calibrate their systems to accurately depict the globe as it is, ensuring greater consistency for scientists who are interpreting the data.

This image is of Lake Tuz in Turkey, which dries up in the summer leaving only this white salt behind. This has been named as one of the eight locations that can be used for calibration.

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