Researchers Gather at Shiny, Dry Salt Lake to White-Balance the Earth

Researchers Gather at Shiny, Dry Salt Lake to White-Balance the Earth | Popular Science: "Ordinary Earthbound cameras can use a nice low-tech method for setting white balance: hold up a white sheet of paper and shoot it. Now a team of British scientists are white-balancing satellite cameras that photograph the Earth for the first time, using an entire Turkish lake."