Recent irreversible retreat of Pine Island Glacier caused by changes in ocean forcing

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• Bradley Reed, Bangor University
• Thursday 21 April 2022, 14:00-15:00
• https://ukri.zoom.us/j/92025631637;BAS seminar room 2.

If you have a question about this talk, please contact Dr. Shenjie Zhou.

Pine Island Glacier (PIG) has been losing mass since at least the start of the satellite observational record in the 1970s. In recent decades it has undergone periods of rapid grounding line retreat, acceleration and inland thinning, prompting fears about the glacier being in an unstable configuration. Mass loss from this region is caused by enhanced ocean-induced basal melting, which can lead to a reduction in ice shelf buttressing and increased ice flow. Here, I present the initial results of a study which uses a vertically-integrated ice flow model and 1D plume model to study a recent period of rapid PIG retreat. I investigate the conditions that may have led to PIG ungrounding from a submarine ridge and migrating back to it’s current day position.

This talk is part of the British Antarctic Survey - Polar Oceans seminar series series.

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