Insights into spatial sensitivities of ice mass response to environmental change from the SeaRISE ice sheet modeling project II: Greenland
| Autor: | Ed Bueler, Sophie Nowicki, Hyeungu Choi, Eric Rignot, Anders Levermann, David Pollard, William H. Lipscomb, Ute Christina Herzfeld, Charles S. Jackson, Stephen Price, Diandong Ren, B. R. Parizek, Ralf Greve, Hakime Seddik, Jesse V. Johnson, Andy Aschwanden, Fuyuki Saito, R. T. Walker, Ayako Abe-Ouchi, Constantine Khroulev, Helene Seroussi, Mathieu Morlighem, Tatsuru Sato, M. A. Martin, James L. Fastook, Kunio Takahashi, Wei Li Wang, Robert Bindschadler, Gail Gutowski, Glen Granzow, Eric Larour |
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| Jazyk: | angličtina |
| Rok vydání: | 2013 |
| Předmět: |
geography
geography.geographical_feature_category 010504 meteorology & atmospheric sciences Environmental change Institut für Physik und Astronomie 010502 geochemistry & geophysics 01 natural sciences Geophysics 13. Climate action Climatology 14. Life underwater Ice sheet Geology 0105 earth and related environmental sciences Earth-Surface Processes |
| Zdroj: | Nowicki, S; Bindschadler, RA; Abe-Ouchi, A; Aschwanden, A; Bueler, E; Choi, H; et al.(2013). Insights into spatial sensitivities of ice mass response to environmental change from the SeaRISE ice sheet modeling project II: Greenland. Journal of Geophysical Research: Earth Surface, 118(2), 1025-1044. doi: 10.1002/jgrf.20076. UC Irvine: Retrieved from: http://www.escholarship.org/uc/item/2534g5w6 |
| Popis: | 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. Key Points Sensitivity study of Greenland to atmospheric, oceanic and subglacial forcings Each forcing result in a different regional thickness response All forcings lead to an increased mass loss for the coming centuries ©2013. American Geophysical Union. All Rights Reserved. |
| Databáze: | OpenAIRE |
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