Articles | Volume 19, issue 5
https://doi.org/10.5194/tc-19-1873-2025
https://doi.org/10.5194/tc-19-1873-2025
Research article
 | 
15 May 2025
Research article |  | 15 May 2025

Current reversal leads to regime change in the Amery Ice Shelf cavity in the 21st century

Jing Jin, Antony J. Payne, and Christopher Y. S. Bull

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Cited articles

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Short summary
The Amery Ice Shelf cavity is one of the largest cold cavities filled by relatively cold Dense Shelf Water. However, in this study, we show that warm intrusion of modified Circumpolar Deep Water flushes the Amery cavity, which changes it from a cold cavity to a warm cavity and leads to an abrupt increase in the basal melt rate in the 2060s. The shift to a warm cavity is attributed to a freshening-driven current reversal in front of the ice shelf.
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