TY - JOUR
T1 - A coupled ice sheet-sea level model incorporating 3D earth structure
T2 - Variations in Antarctica during the Last Deglacial Retreat
AU - Gomez, Natalya
AU - Latychev, Konstantin
AU - Pollard, David
N1 - Funding Information:
Acknowledgments. We thank two anonymous reviewers for their constructive comments, Jerry Mitrov-ica for insightful discussions, and Douglas Wiens for providing us with the seismic data upon which we based our 3D Earth viscosity model. N. Gomez is funded by the National Science and Engineering Research Council, the Canada Research Chairs Program, the Canadian Foundation for Innovation and McGill University. K. Latychev is supported by the National Aeronautics and Space Administration Grant NNX17AE17G, and D. Pollard is supported by the National Science Foundation under Grants OCE-1202632 (PLIOMAX) and ANT-1341394. This research is a contribution to the SCAR SERCE program.
Funding Information:
We thank two anonymous reviewers for their constructive comments, Jerry Mitrovica for insightful discussions, and Douglas Wiens for providing us with the seismic data upon which we based our 3D Earth viscosity model. N. Gomez is funded by the National Science and Engineering Research Council, the Canada Research Chairs Program, the Canadian Foundation for Innovation and McGill University. K. Latychev is supported by the National Aeronautics and Space Administration Grant NNX17AE17G, and D. Pollard is supported by the National Science Foundation under Grants OCE-1202632 (PLIOMAX) and ANT-1341394. This research is a contribution to the SCAR SERCE program
Publisher Copyright:
© 2018 American Meteorological Society.
PY - 2018/5/1
Y1 - 2018/5/1
N2 - A gravitationally self-consistent, global sea level model with 3D viscoelastic Earth structure is interactively coupled to a 3D dynamic ice sheet model, and the coupled model is applied to simulate the evolution of ice cover, sea level changes, and solid Earth deformation over the last deglaciation, from 40 ka to the modern. The results show that incorporating lateral variations in Earth's structure across Antarctica yields local differences in the modeled ice history and introduces significant uncertainty in estimates of both relative sea level change and modern crustal motions through the last deglaciation. An analysis indicates that the contribution of glacial isostatic adjustment to modern records of sea level change and solid Earth deformation in regions of Antarctica underlain by low mantle viscosity may be more sensitive to ice loading during the late Holocene than across the last deglaciation.
AB - A gravitationally self-consistent, global sea level model with 3D viscoelastic Earth structure is interactively coupled to a 3D dynamic ice sheet model, and the coupled model is applied to simulate the evolution of ice cover, sea level changes, and solid Earth deformation over the last deglaciation, from 40 ka to the modern. The results show that incorporating lateral variations in Earth's structure across Antarctica yields local differences in the modeled ice history and introduces significant uncertainty in estimates of both relative sea level change and modern crustal motions through the last deglaciation. An analysis indicates that the contribution of glacial isostatic adjustment to modern records of sea level change and solid Earth deformation in regions of Antarctica underlain by low mantle viscosity may be more sensitive to ice loading during the late Holocene than across the last deglaciation.
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U2 - 10.1175/JCLI-D-17-0352.1
DO - 10.1175/JCLI-D-17-0352.1
M3 - Article
AN - SCOPUS:85047726968
VL - 31
SP - 4041
EP - 4054
JO - Journal of Climate
JF - Journal of Climate
SN - 0894-8755
IS - 10
ER -