Toward A High Resolution Southern Hemisphere
Climate Reconstruction:
Mapping the Antarctic Ice Sheet in Space and Time

Page 8 of 9


US ITASE offers the ground-based opportunities of traditional style traverse travel coupled with the modern technology of GPS, crevasse detecting radar, satellite communications and multi-disciplinary research. By operating as an over snow traverse US ITASE offers scientists the opportunity to experience the dynamic range of the Antarctic environment. US ITASE also offers an important interactive venue for research (currently eleven integrated science projects – Table 1, below) similar to that afforded by oceanographic research vessels and large polar field camps, without the cost of the former or the lack       of       mobility       of       the       latter.

Most importantly, the combination of disciplines represented by US ITASE provides a unique, multi-dimensional (x, y, z and time) view of the ice sheet and its history. In its current four year cycle, US ITASE has sampled the environment of West Antarctica over spatial scales of >5000 km, depths of >3000 m, heights in the atmosphere of >20 km, and time periods of several hundred years (sub-annual scale) to hundreds of thousands of years (millennial scale). Continued US ITASE research, future proposed US ITASE traverses (Figure 1), and collaboration with our international ITASE colleagues, will, in the next several years, provide unprecedented knowledge of past Antarctic climate and ice sheet variability and improve prediction capability.

Research Team Members Institution Projects
Mary Albert CRREL Snow and firn microstructure
Ursula Leeman    
Steve Arcone CRREL High resolution radar profiling
Roger Bales U Arizona Hydrogen peroxide
Markus Frey   and formaldehyde
Joe McConnell DRI  
David Bromwich OSU Meteorology
Gordon Hamilton U Maine Mass balance and satellite image
Blue Spikes   analysis
Ian Whillans OSU  
Bob Jacobel St. Olaf Deep radar
Brian Welch    
Paul Mayewski U Maine Glaciochemistry and
Dan Dixon   calibration with
Susan Kaspari   instrumental records
Paul Mayewski U Maine Science management
Joe McConnell DRI Tri-fluoroacetate
Deb Meese CRREL Stratigraphy and grain growth
Tony Gow    
Eric Steig U Washington Stable isotopes and satellite
David Schneider   observations of surface
James White U Colorado temperature
Chris Shuman NASA  

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