Earth Sciences Division (ESD) Department of Energy (DOE) Lawrence Berkeley National Laboratory (LBNL)

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04/25/2013

ESD’s Ice-Breaking Science

Source:  Dan Hawkes

Permafrost_sampling HubbardESD’s recently appointed division director Susan Hubbard and her colleagues have trekked to the same plot of land in Alaska throughout the past year to follow changes to the permafrost, which is soil that is permanently frozen hundreds of meters into the ground. As a recent article in PNAS describes, Hubbard and her fellow researchers seek to understand what dictates the physical features of permafrost (such as cracks in the soil and polygons of ice across wide swathes of land), how the permafrost affects the overlying active layer, and how climate change will influence the trajectory of the permafrost system, which currently covers an estimated 24% of the land in the Northern hemisphere.

To read more, go to:

http://www.pnas.org/content/110/17/6611.full