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On the atmosphere for astronomers above Dome C, Antarctica

  • T. Sadibekova (a1) (a2), E. Fossat (a1), C. Genthon (a3), G. Krinner (a3), E. Aristidi (a1), K. Agabi (a1) and M. Azouit (a1)...

Abstract

This paper describes a comparison between balloon radio-soundings made in summer at the Concordia station, Dome C, Antarctica and coincident model-based meteorological analyses. The comparison allows the assessment of the reliability of the analyses in summer. This allows the use of the winter analyses within an estimated range of uncertainty, while the first in situ measurements are just becoming available. The astronomical interest is to produce an estimate of atmospheric turbulence during the Antarctic winter at this very promising site. For this work the 6-hourly ECMWF operational analyses were used, concurrently with the data obtained in situ by the radio-sounding made at Concordia with standard meteorological balloons and sondes during four summer seasons (November–January), from December 2000 to the end of January 2004.

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