Supraglacial Lake (IMAGE) University of Colorado at Boulder Caption This is a surface or "supraglacial" lake on the Greenland Ice Sheet. Credit Konrad Steffen, University of Colorado Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.