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Collaborative Research: Response of the Northwest Greenland Cryosphere to Holocene Climate Change

General

Project start
01.01.2012
Project end
31.12.2014
Type of project
ARMAP/NSF
Project theme
Cryosphere
Project topic
Cryosphere

Fieldwork / Study

Fieldwork country
Greenland (DK)
Fieldwork region
Greenland, North-West
Fieldwork location

Geolocation is 76.53199768066, -68.70300292969

Fieldwork start
01.01.2012
Fieldwork end
31.12.2012

SAR information

Fieldwork / Study

Fieldwork country
Greenland (DK)
Fieldwork region
Greenland, North-West
Fieldwork location

Geolocation is 76.53199768066, -68.70300292969

Fieldwork start
01.01.2013
Fieldwork end
31.12.2013

SAR information

Fieldwork / Study

Fieldwork country
Greenland (DK)
Fieldwork region
Greenland, North-West
Fieldwork location

Geolocation is 76.53199768066, -68.70300292969

Fieldwork start
01.01.2014
Fieldwork end
31.12.2014

SAR information

Project details

23.03.2019
Science / project plan

.

Science / project summary
The aim of this collaborative project between investigators at three universities is to develop records of past climate in northwest (NW) Greenland and synthesize them with records of the position of the ice margin to evaluate the response of the Greenland Ice Sheet to past warm periods, such as the Holocene Climatic Optimum (approximately 5 to 9 thousand years ago). Recent studies suggest that rapid ice loss is expanding northwards into NW Greenland, as demonstrated by the dramatic August, 2010, calving event from Petermann Glacier. The proposed research integrates multiple climate proxies and glaciological modeling experiments in the Thule region with the following research objectives: 1) Reconstruct Holocene climate in NW Greenland via inferences from reconstructed local ice cap extents (North Ice Cap, Tuto Ice Cap), ice core stable isotope and precipitation records, and data from nearby lake sediments. 2) Examine the sensitivity of the NW Greenland Ice Sheet (GIS) to Holocene climate changes by developing the history of the areal extent of the GIS and synthesizing proxy data with glaciological modeling experiments to examine past GIS changes and predict future GIS retreat. Results from the research will enable a more accurate prediction of the NW Greenland cryospheric response to a future warmer world and provide information directly relevant to predictions of future sea-level rise. The investigators will enhance public outreach and K-12 science education through development of educational modules using simplified, web-based, climate and glaciological models. They would involve graduate and undergraduate students in field and lab research, participate in the Dartmouth Women in Science Project, and partner with the Dartmouth polar IGERT program.
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