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A doubling in snow accumulation in the western Antarctic Peninsula since 1850
Open accessAbstract
We present results from a new medium depth (136 metres) ice core drilled in a high accumulation site (73.59°S, 70.36°W) on the south‐western Antarctic Peninsula during 2007. The Gomez record reveals a doubling of accumulation since the 1850s, from a decadal average of 0.49 m weq y−1 in 1855–1864 to 1.10 m weq y−1 in 1997–2006, with acceleration in recent decades. Comparison with published accumulation records indicates that this rapid increase is the largest observed across the region. Evaluation of the relationships between Gomez accumulation and the primary modes of atmospheric circulation variability reveals a strong, temporally stable and positive relationship with the Southern Annular Mode (SAM). Furthermore, the SAM is demonstrated to be a primary factor in governing decadal variability of accumulation at the core site (r = 0.66). The association between Gomez accumulation and ENSO is complex: while sometimes statistically significant, the relationship is not temporally stable. Thus, at decadal scales we can utilise the Gomez accumulation as a suitable proxy for SAM variability but not for ENSO.
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Cited by
Clark, P. U., Dyke, A. S., Shakun, J. D., Carlson, A. E., Clark, J., Wohlfarth, B., Mitrovica, J. X., Hostetler, S. W., & McCabe, A. M. (2009) · Science · doi:10.1126/science.1172873 · Cited by 3,277
State of the Antarctic and Southern Ocean climate system
Mayewski, P. A., Meredith, M. P., Summerhayes, C. P., Turner, J., Worby, A., Barrett, P. J., Casassa, G., Bertler, N. A. N., Bracegirdle, T., Naveira Garabato, A. C., et al. (2009) · Reviews of Geophysics · doi:10.1029/2007rg000231 · Cited by 393
Assessing recent trends in high-latitude Southern Hemisphere surface climate
Jones, J. M., Gille, S. T., Goosse, H., Abram, N. J., Canziani, P. O., Charman, D. J., Clem, K. R., Crosta, X., de Lavergne, C., Eisenman, I., et al. (2016) · Nature Climate Change · doi:10.1038/nclimate3103 · Cited by 359
Self-citationWhitehouse, P. L., Bentley, M. J., Milne, G. A., King, M. A., & Thomas, I. D. (2012) · Geophysical Journal International · doi:10.1111/j.1365-246x.2012.05557.x · Cited by 332
Bromwich, D. H., Nicolas, J. P., & Monaghan, A. J. (2011) · Journal of Climate · doi:10.1175/2011jcli4074.1 · Cited by 296
Metadata
- Authors
- Thomas, E. R., Marshall, G. J., & McConnell, J. R.
- Venue
- Geophysical Research Letters
- Publisher
- American Geophysical Union (AGU)
- Published
- 2008-01
- Volume
- 35
- Issue
- 1
- ISSN
- 0094-8276 (ISSN-L)
- 1944-8007
- OpenAlex
- W2158139231
- Cited by
- 208
- References
- 0
- FWCI
- 8.24
- Type
- journal article
- Language
- en
- Open access
- bronze
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- Thomas, E. R., Marshall, G. J., & McConnell, J. R. (2008). A doubling in snow accumulation in the western Antarctic Peninsula since 1850. Geophysical Research Letters. https://doi.org/10.1029/2007gl032529
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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