Dynamical processes involved in the retreat of marine ice sheets / Richard C.A. Hindmarsh, E. Le Meur.

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100 1# ‡aHindmarsh, Richard C. A.
245 10 ‡aDynamical processes involved in the retreat of marine ice sheets /‡cRichard C.A. Hindmarsh, E. Le Meur.
260 ## ‡a[S.l.] :‡b[s.n.],‡c2001.
300 ## ‡ap. 271-282 :‡bill., diags., table.
500 ## ‡aJournal of Glaciology. Vol. 47(157) :271-282 (2001).
520 3# ‡aSeeks to understand how neutral equilibrium property of marine ice sheets organizes their dynamics and to demonstrate that mechanisms previously used to explain marine ice sheet retreat are inadequate. Describes model, solution procedure and model experiments, designed to be representative of Siple Coast/Ross Sea area. Shows that use of static hydraulics to model ice stream behaviour can lead to a substantial retreat that is delayed with respect to post glacial sea level rise, but argues that such models are inconsistent with field evidence. Step changes in accumulation rate or rate factor produce far larger changes in ice sheet thickness than in span. Concludes retreat of the West Antarctic Ice Sheet not caused directly by postglacial forcing (e.g. step temperature change or sea level rise). Finds that thermally induced fluctuations in ice sheet viscosity can lead to a noise-induced drift phenomenon which may be a significant mechanism in controlling retreat. Compares work with other modelling efforts, pointing out that only the present model demonstrates dynamical consistency with corresponding differential equations. See erratum in ibid., 2002, 48(160) :174.
650 07 ‡a551.324 -- Land ice.‡2udc
650 07 ‡a551.324.4 -- Land ice, mass and energy balance.‡2udc
650 07 ‡a551.461.2 -- Sea level, fluctuations.‡2udc
650 07 ‡a551.324.5 -- Land ice, flow.‡2udc
650 07 ‡a551.324.63 -- Land ice, advance and retreat.‡2udc
650 07 ‡a519.673 -- Modelling.‡2udc
650 07 ‡a.000(410) -- British author.‡2udc
650 07 ‡aE5 -- Glaciology: land ice.‡2local
651 #7 ‡a(*7) -- Antarctic regions.‡2udc
651 #7 ‡a(*767.5) -- Siple Coast.‡2udc
700 1# ‡aLe Meur, E.
773 0# ‡7nnas ‡tJournal of Glaciology. ‡gVol. 47(157) (2001) ‡wSPRI-20534
917 ## ‡aUnenhanced record from Muscat, imported 2019
948 3# ‡a20230528