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Insights into spatial sensitivities of ice mass response to environmental change from the SeaRISE ice sheet modeling project II: Greenland

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Title: Insights into spatial sensitivities of ice mass response to environmental change from the SeaRISE ice sheet modeling project II: Greenland
Authors: Nowicki, Sophie Browse this author
Bindschadler, Robert A. Browse this author
Abe-Ouchi, Ayako Browse this author
Aschwanden, Andy Browse this author
Bueler, Ed Browse this author
Choi, Hyeungu Browse this author
Fastook, Jim Browse this author
Granzow, Glen Browse this author
Greve, Ralf Browse this author
Gutowski, Gail Browse this author
Herzfeld, Ute Browse this author
Jackson, Charles Browse this author
Johnson, Jesse Browse this author
Khroulev, Constantine Browse this author
Larour, Eric Browse this author
Levermann, Anders Browse this author
Lipscomb, William H. Browse this author
Martin, Maria A. Browse this author
Morlighem, Mathieu Browse this author
Parizek, Byron R. Browse this author
Pollard, David Browse this author
Price, Stephen F. Browse this author
Ren, Diandong Browse this author
Rignot, Eric Browse this author
Saito, Fuyuki Browse this author
Sato, Tatsuru Browse this author
Seddik, Hakime Browse this author
Seroussi, Helene Browse this author
Takahashi, Kunio Browse this author
Walker, Ryan Browse this author
Wang, Wei Li Browse this author
Issue Date: 10-Jun-2013
Publisher: American Geophysical Union
Journal Title: Journal of Geophysical Research: Earth Surface
Volume: 118
Issue: 2
Start Page: 1025
End Page: 1044
Publisher DOI: 10.1002/jgrf.20076
Abstract: [1] The Sea-level Response to Ice Sheet Evolution (SeaRISE) effort explores the sensitivity of the current generation of ice sheet models to external forcing to gain insight into the potential future contribution to sea level from the Greenland and Antarctic ice sheets. All participating models simulated the ice sheet response to three types of external forcings: a change in oceanic condition, a warmer atmospheric environment, and enhanced basal lubrication. Here an analysis of the spatial response of the Greenland ice sheet is presented, and the impact of model physics and spin-up on the projections is explored. Although the modeled responses are not always homogeneous, consistent spatial trends emerge from the ensemble analysis, indicating distinct vulnerabilities of the Greenland ice sheet. There are clear response patterns associated with each forcing, and a similar mass loss at the full ice sheet scale will result in different mass losses at the regional scale, as well as distinct thickness changes over the ice sheet. All forcings lead to an increased mass loss for the coming centuries, with increased basal lubrication and warmer ocean conditions affecting mainly outlet glaciers, while the impacts of atmospheric forcings affect the whole ice sheet.
Rights: Copyright 2013 American Geophysical Union. All Rights Reserved.
Type: article
URI: http://hdl.handle.net/2115/59046
Appears in Collections:雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: Greve Ralf

 

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