Permafrost outreach 2009
The University of Alaska EPSCoR program, NASA IPY and NSF IPY, Thermal State of Permafrost programs are conducting an outreach effort in conjunction with it's research focus on permafrost and infrastructure. The outreach effort has been termed the "Permafrost Health" program and consists of installing permafrost temperature monitoring systems!Thursday, February 22, 2007
Power Head
Drill (mainly rotation) action needs power. I believe three major power sources are using for drill rig today. Maybe most easy to use but weak method is electric. Electric drill is easy and also working great for colder temperature. We use this sometimes river ice, shallow drill with silty/icy materials. Mechanical drill is probably most common method for portable drill. Because relatively light weight and strong. But it’s sometimes hard to start in the colder temperature. Last method is hydraulic. This is great method for deeper, easy handle, stronger etc. That why most of the professional driller use this way. But this is not capable for portable drill. System needs to bring massive amount of hydraulic fluid and also need warm up during cold environment.
posted by uaf permafrost # 9:52 AM 
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