Publications

Cameron, K.A., B. Hagedorn, M. Dieser, B.C. Christner, K. Choquette, R. Sletten, B. Crump, C. Kellogg, and K. Junge. 2015. Diversity and potential sources of microbiota associated with snow on western portions of the Greenland Ice Sheet. Environmental Microbiology, 17:594-609.

Dieser, M. E.L.J.E. Broemsen, K.A. Cameron, G.M. King, A. Achberger, K. Choquette, B. Hagedorn, R. Sletten, K. Junge, and B.C. Christner. 2014. Molecular and biogeochemical evidence for methane cycling beneath the western margin of the Greenland Ice Sheet. ISME Journal, 8:2305-2316.

Skidmore, M., Jungblut, A., Urschel, M. and Junge, K. 2012. Cryospheric Environments in Polar regions (Glaciers and Ice Sheets, Sea Ice and Ice Shelves), in Polar Microbiology: Life in a Deep Freeze, (Eds.) Whyte and Miller. American Society for Microbiology Press, Washington D.C.

Junge, K., B.C. Christner, and J.T. Staley. 2011.  Diversity of Psychrophilic Bacteria from Sea Ice – and Glacial Ice Communities, In Extremophiles Handbook, (eds.) K. Horikoshi, G. Antranikian, A. Bull, F. Robb, and K. Stetter (eds). Springer, Heidelberg, Germany. 1247 pp.

 

Selected Projects

  • Rotten Ice

    Rotten Ice

    The response of Arctic sea ice to a warming climate includes decreases in extent, lower ice concentration, and reduced ice thickness. Summer melt seasons are lengthening with earlier melt onsets and later autumn freezeups. We believe this will likely lead to an increase in so-called “rotten ice” in the Arctic at the end of summer. This ice has experienced a long summer of melt, is fragile, difficult to work with, and has received little attention. Comprehensive information on its physical and microbiological properties does not exist. Our team is embarking on an ambitious field campaign in order to study this poorly-understood type of sea ice in the context of its microstructural properties and potential for habitability.

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  • Extreme summer melt: Assessing the habitability and physical structure of rotting first-year Arctic sea ice

    This project has two main objectives: 1) determination of the physical and microbial characteristics and microstructural evolution of sea ice exposed to severe melt; and 2) exploration of the influence of biogenic particles such as sea ice algae, bacteria and polymer gels on the melting behavior of sea ice.

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Selected Publications

  • Junge, K., B.C. Christner, and J.T. Staley, “Diversity of Psychrophilic Bacteria from Sea Ice – and Glacial Ice Communities“. In K. Horikoshi, G. Antranikian, A. Bull, F. Robb, and K. Stetter (eds), Extremophiles Handbook. Springer, Heidelberg, Germany. 1247 pp, 2011.

  • Skidmore, M., Jungblut, Anne, and Urschel, M. and K. Junge., “Cryospheric Environments in Polar regions (Glaciers and Ice Sheets, Sea Ice, Ice Shelves).”, In Polar Microbiology. L.Whyte and R. Miller (eds). ASM Press., (2011), Accepted.

ABOUT PSC

  • Bonnie Light, PSC Chair, Welcome»
  • The Polar Science Center is a group of dedicated investigators conducting interdisciplinary research on the oceanography, climatology, meteorology, biology and ecology of the ice-covered regions on Earth and elsewhere in the solar system. Learn more »

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