A Jones Seminar with Sinéad Louise Farrell, Associate Professor of Geographical Sciences, University of Maryland
The ongoing loss of Arctic sea ice has not only serious implications for Earth’s climate, but also wide-ranging ecological and socio-economic impacts. The Advanced Topographic Laser Altimeter System (ATLAS) on NASA’s Ice, Cloud and land Elevation Satellite 2 (ICESat-2) offers a new remote sensing capability to measure the properties of sea ice at high resolution. Here we provide a brief review of changes underway in the Arctic. We explore the first two years of sea ice retrievals from ICESat-2, demonstrating its capability to track the evolution of the ice cover throughout all seasons. ICESat-2 is capable of measuring fine-scale sea ice details, including narrow pressure ridges and leads just 10 m wide, and small sea ice floes just 20 m across. We also show novel measurements of summer melt pond depths—the first such measurements obtained by a space-based altimeter. Detailed measurements of arctic sea ice provide us with a better understanding of the physical processes shaping the ice cover and offer insights about its vulnerability to further decline.
Meeting ID: 987 4052 7441
Events are free and open to the public unless otherwise noted.