The Science of Pingos
Dr. Anna Liljedahl, Research Associate Professor at the Water and Environmental Research Center at University of Alaska Fairbanks, will give a talk for all interest levels about the fascinating science behind pingos – hills of soil over a large core of ice that grow over centuries in the Arctic’s highest latitudes, then collapse, pockmarking the tundra.
Pingos can occur where the ground remains frozen for years at a time, in Alaska, Canada, Greenland, and Siberia. Over centuries, pingos may grow as large as 2,000 feet across and 180 feet tall. As the Arctic rapidly warms, this landform may serve as a bellwether for the future of the Circumpolar North. Dr. Liljedahl is featured in the exhibition video in Murmur: Arctic Realities, and delivers complex scientific information – such as how she integrates field measurements and computational modeling to better understand hydrology and permafrost – using relateable examples and wit.