Under the Radar: Geophysical investigations of Permafrost, Snow, and Glaciers

Laura Thomson (Queen's University)

Jan 23, 2024 3:30 PM
TSI Seminar

Despite rather messy origins, the application of radar over icy bodies has grown into a refined methodology for mapping and characterizing permafrost, estimating snow accumulation, and assessing the geometry and thermal properties glaciers. With high-latitude regions warming at rates >2.5 times the global average, non-destructive methods for monitoring elements of the cryosphere have become increasingly essential as landscapes evolve under a new climate regime. In this lecture, I will discuss three case studies highlighting field-based investigations of permafrost, snow, and glaciers using ground- or ice-penetrating radar systems spanning sites across the Canadian Arctic and Greenland. Together, we will explore methods for: (1) Characterizing ground ice deposits through a series of surveys from Thomas Lee Inlet and the Haughton Impact Crater on Devon Island, NU, (2) Quantifying snow accumulation patterns across Greenland using the European Space Agency’s SAR Radar Altimeter (SIRAL), and (3) Mapping glacier ice thickness and thermal regime at White Glacier on Axel Heiberg Island, NU, where the McGill Arctic Research Station is based. I will discuss the limitations of these methods, as well as new opportunities presented by drone technologies.

Upcoming Seminars

TSI Seminars take place weekly during the Fall and Winter terms. TSI seminars are intended to be accessible to scientists from the entire breadth of backgrounds at TSI, including, Physics, Planetary Science, Geology, Atmospheric Science, and Astrobiology. Our seminar series is partially funded by the Centre de recherche en astrophysique du Québec (CRAQ).

Special Public Talk - A Virtual Tour of Einstein's Universe

Prof. Matthew Bailes (Australian Research Council's Centre of Excellence for Gravitational Wave Discovery)

Jun 17, 2024 7:00 PM
Location: McConnell Engineering Building, Room 204
Public Talk
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