.: April 16th: Evan still healing, GLISN Core Starting today

Saturday, April 16, 2011

April 16th: Evan still healing, GLISN Core Starting today

Apologies for the lack of posts for the past few days. Evan was extracted from the field on April 13th and is now in Kangerlussuaq. He is recovering from acute bronchitis and hopefully will be ready to return to Raven on 109th flights planned midweek. The rest of the team is still in Raven and will begin drilling the first 50m of the GLISN core, a task that was originally slated for after the traverse. We still have enough time to complete all science goals, even with these delays. We hope to get started on ACT11 again as soon as Evan returns to Raven.

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Arctic Circle Traverse 2011

Recent atmospheric model results have indicated that the southeast portion of the Greenland Ice Sheet receives nearly 5 times more snow than the ice-sheet-wide mean. This would suggest that an additional 90 billion tons of ice must be added to the Greenland Ice Sheet mass budget. However, such high snowfall rates have never been observed in Greenland before. Thus it is important to confirm that these high accumulation peaks actually do exist. This is the goal of the Arctic Circle Traverse. In 2010, we drilled three cores in the southeast down to an elevation of 1725m and found accumulation rates of 1.8 m w.eq. (more snow than Alta!). In 2011 we plan to drill 4 more cores, and collect more than 300 km of radar profiles. We depart for Greenland on March 28th. Updates on the traverse will be kept on this blog as well as http://bprc.osu.edu/wiki/ACT. This year, we have arranged a real-time GPS satellite uplink that will map our position and other information every minute. The link to the mapping site is: http://www.datatransport.org/act/monitor Thanks for following and wish us luck!

Saturday, April 16, 2011