Vostok-Concordia traverse, Antarctica

December 2011 – February 2012

Location : ground traverse between Vostok and Concordia Stations, Antarctica ; between 78°28’S – 106°48’E, altitude 3460 m and 75°06’S – 123°20’E, altitude 3230 m

Mean annual temperature : entre -53 et -56°C

Team members 2011-2012 : Olivier Alemany (LGGE, Fr.), Jérôme Chappellaz (LGGE, Fr.), David Colin (IPEV, Fr.), Alexandre Leluc (IPEV, Fr.), Emmanuel Lemeur (LGGE, Fr.), Martin Schneebeli (SLF, CH), Anthony Vende (IPEV, Fr.). The traverse on its way into Vostok from Concordia involved 8 members.

Activities : the traverse, a First in this sector of Antarctica, aimed at documenting the spatial and temporal variability of snow accumulation and of geochemical parameters of the snow, as well as at performing an intermediate drilling at a site with lower accumulation rate than at Concordia Station.

My work in the field : coordinator of the IPEV project EXPLORE articulated with the VANISH project for this traverse, I conducted the firn air sampling at the drilling site called Point Barnola, and I used during that time a SARA laser spectrometer.