Postglacial sealevels on a spherical, self-gravitating viscoelastic earth: Effects of lateral viscosity variations in the upper mantle on the inference of viscosity contrasts in the lower mantle

Earth and Planetary Science Letters

Volumn 211, Issue 1-2, 2003, Pages 57-68

  Wu, Patrick ^a   van der Wal, Wouter ^b  

^a UNIVERSITY OF CALGARY   (Canada)

^b DELFT UNIVERSITY OF TECHNOLOGY   (Netherlands)

Author keywords

Glacial rebound; Lateral heterogeneity; Mantle dynamics; Sealevels; Viscoelasticity

Indexed keywords

MANTLE PROCESS; POSTGLACIAL REBOUND; SEA LEVEL CHANGE; VISCOELASTICITY; VISCOSITY;

EID: 0037869058     PISSN: 0012821X     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0012-821X(03)00199-7     Document Type: Article

References (35)

1. Ekstrom G.Dziewonski A.The unique anisotropy of the Pacific upper mantle Nature 394 1998 168-172
2. [2] F.A. Dahlen, J. Tromp, Theoretical Global Seismology, Princeton University Press, 1998.
3. Ivins E.R.Sammis C.G.On lateral viscosity contrast in the mantle and the rheology of low-frequency geodynamics Geophys. J. Int. 123 1995 305-322
4. Sabadini R.Yuen D.A.Portney M.The effects of upper mantle lateral heterogeneities on postglacial rebound Geophys. Res. Lett. 13 1986 337-340
5. Sabadini R.Gasperini P.Glacial isostasy and the interplay between upper and lower mantle lateral viscosity heterogeneities Geophys. Res. Lett. 16 1989 429-432
6. Gasperini P.Sabadini R.Lateral heterogeneities in mantle viscosity and post-glacial rebound Geophys. J. 98 1989 413-428
7. Gasperini P.Yuen D.A.Sabadini R.Effects of lateral viscosity variations on postglacial rebound: implications for recent sea-level trends Geophys. Res. Lett. 17 1990 5-8
8. P. Gasperini, R. Sabadini, D.A. Yuen, Deep continental roots: the effects of lateral variations of viscosity on postglacial rebound, in: R. Sabadini, K. Lambeck, E. Boschi (Eds.), Glacial Isostasy, Sea Level and Mantle Rheology, Kluwer Academic Publishers, Dordrecht, 1991, pp. 21-32.
9. Giunchi C.Spada G.Sabadini R.Lateral viscosity variations and postglacial rebound: effects on present-day VLBI baseline deformations Geophys. Res. Lett. 24 1997 13-16
10. Kaufmann G.Wu P.Wolf D.Some effects of lateral heterogeneities in the upper mantle on postglacial land uplift close to continental margins Geophys. J. Int. 128 1997 175-187
11. Kaufmann G.Wu P.Lateral asthenospheric viscosity variations and postglacial rebound: a case study for the Barents Sea Geophys. Res. Lett. 25 1998 1963-1966
12. Kaufmann G.Wu P.Li G.Glacial isostatic adjustment in Fennoscandia for a laterally heterogeneous Earth Geophys. J. Int. 143 2000 262-273
13. G. Kaufmann, P. Wu, Glacial isostatic adjustment on a three-dimensional earth: examples from Fennoscandia and the Barents Sea, in: J.X. Mitrovica, L.L.A. Vermeersen (Eds.), Sea-level, Crustal Deformation, Gravity and Rotation, AGU Geodynamics Series, 2002, pp. 293-309.
14. Kaufmann G.Wu P.Glacial isostatic adjustment in Fennoscandia with a three dimensional viscosity structure as an inverse problem Earth Planet. Sci. Lett. 197 2002 1-10
15. P. Wu, Z. Ni, G. Kaufmann, Postglacial rebound with lateral heterogeneities: from 2D to 3D modeling. in: P.Wu (Ed.), Dynamics of the Ice Age Earth: A Modern Perspective, Trans Tech Publications, Zurich, 1998, pp. 557-582.
16. Farrell W.E.Clark J.A.On postglacial sea level Geophys. J. R. Astron. Soc. 46 1976 647-667
17. Wu P.Mode coupling in a viscoelastic self-gravitating spherical earth induced by axisymmetric loads and lateral viscosity variations Earth Planet. Sci. Lett. 202 2002 49-60
18. P. Wu, Effects of nonlinear rheology on degree 2 harmonic deformation in a spherical self-gravitating earth, Geophys. Res. Lett. 29 (2002) 10.1029/2001GL014109.
19. P. Wu, J. Wahr, W.R. Peltier, Thermally induced lateral viscosity variations and postglacial rebound: implications for relative sea levels in Laurentia, IUGG 99 Birmingham Abstracts, 1999, p. A61.
20. Peltier W.R.Ice age paleotopography Science 265 1994 195-201
21. Leitch A.M.Yuen D.A.Internal heating and thermal constraints on the mantle Geophys. Res. Lett. 16 1989 1407-1410
22. Peltier W.R.Postglacial variations in the level of the sea: implications for climate dynamics and solid-earth geophysics Rev. Geophys. 36 1998 603-689
23. Milne G.A.Mitrovica J.X.Schrag D.P.Estimating past continental ice volume from sea-level data Quat. Sci. Rev. 21 2002 361-376
24. Clark J.A.Farrell W.E.Peltier W.R.Global changes in postglacial sea level: a numerical calculation Quat. Res. 9 1978 265-287
25. Wu P.Peltier W.R.Glacial isostatic adjustment and the free air gravity anomaly as a constraint on deep mantle viscosity Geophys. J. R. Astron. Soc. 74 1983 377-450
26. Tushingham A.M.Peltier W.R.Ice-3G: a new global model of late Pleistocene deglaciation based upon geophysical predictions of post-glacial relative sea-level change J. Geophys. Res. 96 1991 4497-4523
27. P. Wu, Using commercial finite element packages for the study of earth deformations, sea levels and the state of stress, submitted.
28. Johnston P.The effect of spatially non-uniform water loads on predictions of sea-level change Geophys. J. Int. 114 1993 615-634
29. G.A. Milne, Refining models of the glacial isostatic adjustment process, Ph.D. thesis, University of Toronto, Toronto, Canada, 1998, 124 pp.
30. Milne G.A.Mitrovica J.X.The influence of of a time-dependent ocean-continent geometry on predictions of post-glacial sea level change in Australia and New Zealand Geophys. Res. Lett. 25 1998 793-796
31. Milne G.A.Mitrovica J.X.Postglacial sealevel change on a rotating Earth Geophys. J. Int. 133 1998 1-19
32. Mitrovica J.X.Peltier W.R.On postglacial geoid subsidence over the equatorial oceans J. Geophys. Res. 96 1991 20053-20071
33. di Donato G.Vermeersen L.L.A.Sabadini R.Sea-level changes, geoid and gravity anomalies due to Pleistocene deglaciation by means of multilayered, analytical Earth models Tectonophysics 320 2000 409-418
34. Farrell W.E.Deformation of the earth by surface loads Rev. Geophys. Space Phys. 10 1972 761-797
35. P. Wu, Postglacial induced surface motions, sealevels and geoid rate on a spherical, self-gravitating laterally heterogeneous earth, submitted.