Reconciling the ICE-6G_C reconstruction of glacial chronology with ice sheet dynamics: The cases of Greenland and Antarctica
| Autor: | G. R. Stuhne, W. R. Peltier |
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| Rok vydání: | 2015 |
| Předmět: |
geography
Ice-sheet dynamics geography.geographical_feature_category 010504 meteorology & atmospheric sciences Ice stream 010502 geochemistry & geophysics Glacier morphology 01 natural sciences Ice-sheet model Paleontology Geophysics Ice core Climatology Ice age Cryosphere Ice sheet Geology 0105 earth and related environmental sciences Earth-Surface Processes |
| Zdroj: | Journal of Geophysical Research: Earth Surface. 120:1841-1865 |
| ISSN: | 2169-9003 |
| DOI: | 10.1002/2015jf003580 |
| Popis: | We describe a theoretical and numerical framework that has been developed to investigate the compatibility of the ICE-6G_C reconstruction of the glaciation histories of the Greenland and Antarctic ice sheets with the latest understanding of ice physics. The ICE-6G_C reconstruction has been produced solely on the basis of the theory of the glacial isostatic adjustment (GIA) process, and it has remained an issue as to whether such reconstructions of the time-dependent thickness variations of grounded continental ice sheets were compatible with physics-based ice mechanical considerations. Our analyses focus on the evolution over the last glacial cycle of these extent ice sheet complexes and demonstrate that the GIA-inferred models are entirely consistent with such considerations when uncertainties in (net) mass balance history are taken fully into account. |
| Databáze: | OpenAIRE |
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