Heavy Icing Can Affect Arctic Tourism (IMAGE) Norwegian University of Science and Technology Caption An unusual rain-on-snow event in January 2012 covered tundra on Svalbard with a layer of ice that averaged 15.3 centimeters thick in places. That made it difficult for even snowmobiles with studded tracks to travel. Svalbard's winter tourist industry felt the effect. Credit Brage Bremset Hansen, Norwegian University of Science and Technology Usage Restrictions With proper credit as above 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.