Grounding line retreat and tide-modulated ocean channels at Moscow University and Totten Glacier ice shelves, East Antarctica

Abstract 3.51 ± 0.49  km at TGIS, while it retreated 13.85 ± 0.08  km at MUIS from 1996. Using CryoSat-2 radar altimetry, we found that the observed GL retreats are coincident with high thinning rates, in addition to high ice velocities, indicating a mass loss pattern dominated by ice dynamics. We also identified two tide-modulated ocean channels on Totten Glacier Eastern Ice Shelf (TGEIS) and Moscow University Western Ice Shelf (MUWIS), where the ocean channel widths are highly correlated with the differential tidal amplitudes. The opening of the MUWIS ocean channel connects the two previously separated TGIS and MUIS systems, which might open a pathway for the warm modified Circumpolar Deep Water to enter the main MUIS cavity and facilitate further GL retreat.

Location
Deutsche Nationalbibliothek Frankfurt am Main
Extent
Online-Ressource
Language
Englisch

Bibliographic citation
Grounding line retreat and tide-modulated ocean channels at Moscow University and Totten Glacier ice shelves, East Antarctica ; volume:17 ; number:2 ; year:2023 ; pages:1003-1022 ; extent:20
The Cryosphere ; 17, Heft 2 (2023), 1003-1022 (gesamt 20)

Creator
Li, Tian
Dawson, Geoffrey J.
Chuter, Stephen J.
Bamber, Jonathan L.

DOI
10.5194/tc-17-1003-2023
URN
urn:nbn:de:101:1-2023033006134644082621
Rights
Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
Last update
14.08.2025, 10:56 AM CEST

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Associated

  • Li, Tian
  • Dawson, Geoffrey J.
  • Chuter, Stephen J.
  • Bamber, Jonathan L.

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