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Brief Communication: Thwaites Glacier cavity evolution / Suzanne Bevan; Adrian Luckman; Douglas I. Benn; Susheel Adusumilli; Anna Crawford

The Cryosphere, Volume: 15, Pages: 3317 - 3328

Swansea University Authors: Suzanne, Bevan, Adrian, Luckman

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Abstract

Between 2014 and 2017, ocean melt eroded a large cavity beneath and along the western margin of the fast-flowing core of Thwaites Glacier. Here we show that from2017 to the end of 2020 the cavity persisted but did not ex-pand. This behaviour, of melt concentrated at the groundingline within confined...

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Published in: The Cryosphere
ISSN: 1994-0424
Published: Copernicus GmbH 2021
Online Access: Check full text

URI: https://cronfa.swan.ac.uk/Record/cronfa56442
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Abstract: Between 2014 and 2017, ocean melt eroded a large cavity beneath and along the western margin of the fast-flowing core of Thwaites Glacier. Here we show that from2017 to the end of 2020 the cavity persisted but did not ex-pand. This behaviour, of melt concentrated at the groundingline within confined sub-shelf cavities, fits with prior observations and modelling studies. We also show that acceleration and thinning of Thwaites Glacier grounded ice continued, with an increase in speed of 400 m a−1and a thinning rate of at least 1.5 m a−1, between 2012 and 2020.
Keywords: Thwaites Glacier, ocean melt
College: College of Science
Start Page: 3317
End Page: 3328