IEDA
Project Information
IPY Research: Investigating the Cryospheric Evolution of the Central Antarctic Plate (ICECAP)
Short Title:
ICECAP/IPY
Description/Abstract
This project is an aerogeophysical survey to explore unknown terrain in East Antarctica to answer questions of climate change and earth science. The methods include ice-penetrating radar, gravity, and magnetic measurements. The project?s main goal is to investigate the stability and migration of ice divides that guide flow of the East Antarctic ice sheet, the world?s largest. The project also maps ice accumulation over the last interglacial, identifies subglacial lakes, and characterizes the catchment basins of the very largest glacial basins, including Wilkes and Aurora. The outcomes contribute to ice sheet models relevant to understanding sea level rise in a warming world. The work will also help understand the regional geology. Buried beneath miles-thick ice, East Antarctica is virtually uncharacterized, but is considered a keystone for tectonic reconstructions and other geologic questions. The region also hosts subglacial lakes, whose geologic histories are unknown.

The broader impacts are extensive, and include societal relevance for understanding sea level rise, outreach in various forms, and education at the K12 through postdoctoral levels. The project contributes to the International Polar Year (2007-2009) by addressing key IPY themes on frontiers in polar exploration and climate change. It also includes extensive international collaboration with the United Kingdom, Australia, France and other nations; and offers explicit opportunities for early career scientists.
Personnel
Person Role
Siegert, Martin Co-Investigator
Roberts, Jason Co-Investigator
Van Ommen, Tas Co-Investigator
Warner, Roland Co-Investigator
Richter, Thomas Co-Investigator
Greenbaum, Jamin Co-Investigator
Holt, John W. Co-Investigator
Young, Duncan A. Co-Investigator
Blankenship, Donald D. Investigator
Funding
Antarctic Earth Sciences Award # 0733025
Antarctic Integrated System Science Award # 0733025
AMD - DIF Record(s)
Data Management Plan
None in the Database
Publications
  1. Roberts, J., Curran, M., Poynter, S., Moy, A., Ommen, T. van, Vance, T., … Siegert, M. (2017). Correlation confidence limits for unevenly sampled data. Computers & Geosciences, 104, 120–124. (doi:10.1016/j.cageo.2016.09.011)
  2. Wright, A. P., Young, D. A., Roberts, J. L., Schroeder, D. M., Bamber, J. L., Dowdeswell, J. A., … Siegert, M. J. (2012). Evidence of a hydrological connection between the ice divide and ice sheet margin in the Aurora Subglacial Basin, East Antarctica. Journal of Geophysical Research: Earth Surface, 117(F1), n/a–n/a. (doi:10.1029/2011jf002066)
  3. Aitken, A. R. A., Young, D. A., Ferraccioli, F., Betts, P. G., Greenbaum, J. S., Richter, T. G., … Siegert, M. J. (2014). The subglacial geology of Wilkes Land, East Antarctica. Geophysical Research Letters, 41(7), 2390–2400. (doi:10.1002/2014gl059405)
  4. Aitken, A. R. A., Betts, P. G., Young, D. A., Blankenship, D. D., Roberts, J. L., & Siegert, M. J. (2016). The Australo-Antarctic Columbia to Gondwana transition. Gondwana Research, 29(1), 136–152. (doi:10.1016/j.gr.2014.10.019)
  5. Dow, C. F., Lee, W. S., Greenbaum, J. S., Greene, C. A., Blankenship, D. D., Poinar, K., Forrest, A. L., Young, D. A., and Zapp, C. J.,2018, Basal channels drive active surface hydrology and transverse ice shelf fracture, Science Advances, 4, 6, 10.1126/sciadv.aao7212 (doi:10.1126/sciadv.aao7212)

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