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Victoria University Antarctic Research Expedition Science and Logistics Reports 2007-08: VUWAE 52

Snow profiling

Snow profiling

Density and temperature profiling was conducted at 5cm resolution once sampling was complete and the surface was freshly cut back. Cylinders of known volume were hammered into the fresh surface, filled, extracted and weighed to determine precise density measurements.

Physical description notes of crystal structure and the location of hoar horizons are used to provide a preliminary chronology. This was taken both during and after sampling, with the upper section constructed into a thin wall to determine these more clearly (Fig 3.) Stable isotope and chemical species characterised by seasonal changes (e.g. sea salt species Na, Sr) will be used to confirm this chronology.