image: This is a false-color image of Lake El'gygytgyn. This image was taken by the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) on NASA's Terra satellite on August 18, 2008. Red indicates vegetation, gray-brown indicates bare land and deep blue indicates water. More information is available at http://earthobservatory.nasa.gov/IOTD/view.php?id=36151. This image relates to a paper that appeared in the May 9, 2013, issue of Science Express, published by AAAS. The paper, by Julie Brigham-Grette at University of Massachusetts in Amherst, Mass., and colleagues was titled, "Pliocene Warmth, Polar Amplification, and Stepped Pleistocene Cooling Recorded in NE Arctic Russia." view more
Credit: [Image © NASA's Earth Observatory]