WACSWAIN SIGNED
WArm Climate Stability of the West Antarctic ice sheet in the last INterglacial (WACSWAIN)
Total Cost €
0EC-Contrib. €
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Project "WACSWAIN" data sheet
The following table provides information about the project.
| Coordinator |
THE CHANCELLOR MASTERS AND SCHOLARSOF THE UNIVERSITY OF CAMBRIDGE
Organization address contact info |
| Coordinator Country | United Kingdom [UK] |
| Total cost | 2˙817˙554 € |
| EC max contribution | 2˙817˙554 € (100%) |
| Programme |
1. H2020-EU.1.1. (EXCELLENT SCIENCE - European Research Council (ERC)) |
| Code Call | ERC-2016-ADG |
| Funding Scheme | ERC-ADG |
| Starting year | 2017 |
| Duration (year-month-day) | from 2017-08-01 to 2022-07-31 |
Partnership
Take a look of project's partnership.
| # | ||||
|---|---|---|---|---|
| 1 | THE CHANCELLOR MASTERS AND SCHOLARSOF THE UNIVERSITY OF CAMBRIDGE | UK (CAMBRIDGE) | coordinator | 1˙302˙035.00 |
| 2 | UNITED KINGDOM RESEARCH AND INNOVATION | UK (SWINDON) | participant | 1˙515˙518.00 |
| 3 | NATURAL ENVIRONMENT RESEARCH COUNCIL | UK (SWINDON WILTSHIRE) | participant | 0.00 |
Map
Project objective
Recent papers predict the loss of most of the West Antarctic Ice Sheet (WAIS) by 2500 if CO2 emissions and rising global temperatures are not controlled. It is critical to test whether the models making such worrying predictions are realistic. I will do this by obtaining new data from the last interglacial (LIG, 130,000-115,000 years ago) to assess the response of the WAIS to comparable warmth.
During the LIG, sea level reached 6-9 m higher than today. It is inferred that Antarctic ice sheets contributed several metres of sea level rise, under a climate similar to the one we could be committing ourselves to in the next few centuries. Most authors assume that the lost ice came mainly from the WAIS. Models that predict large ice loss in the future also produce a very significant retreat of the WAIS and loss of the Ross and Ronne ice shelves under LIG conditions.
Were the WAIS and Ronne Ice Shelf significantly smaller in the LIG? If so, what was the time course of their retreat and regrowth? This project will remedy the surprising lack of direct evidence about these questions. I will examine data from ice cores that reach the LIG, drilled on the periphery of the WAIS. I will include retrieval of one new strategically-placed bedrock core, and obtain an isotope profile that will test the potential of another site. The loss of much of the WAIS would have several effects on peripheral ice caps: glacio-isostatic (GI) uplift and a change in atmospheric circulation would cause a recognisable spatial and temporal pattern of symptoms. The retreat of the Ronne Ice Shelf would leave a clear signature in marine aerosol concentrations in the ice. By examining changes in water isotopes, sea salt, air content and other proxies in all the cores, in comparison with different model outputs, I will estimate the timing and extent of WAIS retreat and regrowth during the LIG. This will support or question the use of sensitive models to predict future change in the WAIS.
Publications
| year | authors and title | journal | last update |
|---|---|---|---|
| 2019 |
Laurie Menviel, Emilie Capron, Aline Govin, Andrea Dutton, Lev Tarasov, Ayako Abe-Ouchi, Russell N. Drysdale, Philip L. Gibbard, Lauren Gregoire, Feng He, Ruza F. Ivanovic, Masa Kageyama, Kenji Kawamura, Amaelle Landais, Bette L. Otto-Bliesner, Ikumi Oyabu, Polychronis C. Tzedakis, Eric Wolff, Xu Zhang The penultimate deglaciation: protocol for Paleoclimate Modelling Intercomparison Project (PMIP) phase 4 transient numerical simulations between 140 and 127 ka, version 1.0 published pages: 3649-3685, ISSN: 1991-9603, DOI: 10.5194/gmd-12-3649-2019 |
Geoscientific Model Development 12/8 | 2020-03-23 |
| 2020 |
Eric Wolff, Robert Mulvaney, Sentia Goursaud, Mackenzie Grieman, Helene Hoffmann, Jack
Humby, Amy King, Emily Ludlow, Shaun Miller, Christoph Nehrbassâ€Ahles, Scott Polfrey, Julius
Rix, Isobel Rowell, Rebecca Tuckwell What happened to WAIS during the last interglacial? †how the new Skytrain Ice Rise core will help to answer that (abstract) published pages: 73, ISSN: , DOI: |
QUATERNARY RESEARCH ASSOCIATION ANNUAL DISCUSSION MEETING ABSTRACTS Annual | 2020-03-23 |
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