Microstructural evolution of fine-grained layers through the firn column at Summit, Greenland

August 2011
Journal of Glaciology;2011, Vol. 57 Issue 204, p755
Academic Journal
The article focuses on a study about the microstructural evolution of fine-grained layers from the firn structure in Summit, Greenland. Firn is described as a porous multi-year snow comprised of ice and air that makes up the top 60-100 meters of the polar ice sheets. Results showed that impurities come in soluble and dust-like forms while most micro-impurities have been detected in the grains. Findings indicate that surface-to-volume ratio transpires in the first three meters (m) of the firn column while a level of pore segregation exists between the 21 and 35 m.


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