Agenda

Speaker:
Bo Møllesøe Vinther , University of Copenaghen (Denmark) - Niels Bohr Institute

Link Zoom
Meeting ID: 893 0972 4153
Passcode:  ZH9c85

Abstract:
In 2025 a Canadian led, international team drilled an ice core all the way to bed on the Müller Ice Cap in the Canadian High Arctic. The operation was logistically challenging, due to the remoteness of the ice cap, which is situated at 80 deg North on Axel Heiberg Island. Staging all equipment at the Eureka Weather station, it was however, possible to use both Twin Otters and Baslers to airlift cargo and camp personnel to the drill site at approximate 1900m elevation. Using the Danish intermediate drill system a 613m core was drilled to bed within the 2 months long field season. The processing of the core has just been finished in Edmonton, Canada, and initial results suggest that a very thin layer of ice from the last Glacial period can be found in the deepest part of the core – likely a remnant from the vast Innuitian Ice Sheet that covered the Canadian High Arctic back then.

Bio sketch:
Associate Professor Bo Vinther, is the leader of the Physics, Ice, Climate and Earth section at the Niels Bohr Institute, University of Copenhagen. Bo’s research has mainly focused on the interpretation of water stable isotope data from Greenland and Canadian ice cores, using such records to detect climatic changes ranging from atmospheric circulation patterns on seasonal time scales to Greenland ice sheet evolution on millennial time scales. Field work has always been a major part of Bo’s research, and he has been in the field on the Greenland ice sheet most summers since 2004, but most recently Bo travelled slightly more west for the Müller Ice Cap coring in the Canadian High Arctic in 2025.