b. Objectives

1. Clean snow sampling at Evans Piedmont Glacier

   A primary objective of 2007/08 field season was to sample a high resolution snow record of the last decade, with emphasis on ultra-cleanliness, as concentration levels of trace elements in polar snow and ice are in the parts per trillion (ppt) to parts per quadrillion (ppq) range ⁶.

2. Automatic Weather Station data retrieval, Evans Piedmont Glacier

   An automatic weather station (AWS) was installed by K049 in 2004/05 near the previous drill site and current sampling site. This data is important in establishing transfer functions between temporal variations in snow chemistry and meteorological parameters in order to quantitatively establish the use of trace elements as a climatic proxy.