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Modeling of the Greenland Glacial Isostatic Adjustment in Response to Projected Ice Mass Loss in the Coming Centuries

presentation
posted on 05.05.2020 by Mila Lubeck, Christopher Harig
Since the last glacial maximum (LGM) ~20,000 years ago the Earth has deformed in response to the melting of large ice sheets. This deformation is known as glacial isostatic adjustment (GIA). The GIA is critical to understanding the rate of uplift of the rockbed which contributes to sea-level changes, flexure response of surrounding rockbed, and understanding the rheology of the mantle. This project contributes to current knowledge of how GIA uplift will change going into the future. Greenland has had significant ice mass loss since 2003 and ongoing GIA deformation since LGM. Slepian functions and GRACE gravity data were used to calculate the ice mass loss in Greenland to construct a forward model of the GIA for Greenland based on the next 100 years of ice loss. This is important for finding when the GIA signal will have a comparable value to GIA from earlier deglaciation periods.



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Funding

THE ARIZONA SPACE GRANT CONSORTIUM (AZSGC) IS PROPOSING FOR A NATIONAL SPACE GRANT COLLEGE AND FELLOWSHIP PROGRAM TRAINING GRANT FOR 2015-2018 IN RESPONSE TO NASA AO NNH15ZHA003N TO AUOW AZSGC TO CONTINUE SPONSOR STATEWIDE SPACE GRANT ACTIVITIES FOR THE 2

National Aeronautics and Space Administration

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