Millimetric Astronomy from the High Antarctic Plateau: site testing at Dome C

Details Millimetric Astronomy from the High Antarctic Plateau: site testing at Dome C Millimetric Astronomy from the High Antarctic Plateau: site testing at Dome C

1999-05-10

arxiv.org/abs/astro-ph/9905105v1

Pubbl. Astron. Soc. of Australia, vol 16, 2, 1999

Astronomy and Astrophysics

Astrophysics

10 pages, 8 figures, se also http://www.atnf.csiro.au/pasa/16_2/

Scientific paper

Preliminary site testing at Dome C (Antarctica) is presented, using both Automatic Weather Station (AWS) meteorological data (1986-1993) and Precipitable Water Vapor (PWV) measurements made by the authors. A comparison with South Pole and other sites is made. The South Pole is a well established astrophysical observing site, where extremely good conditions are reported for a large fraction of time during the year. Dome C, where Italy and France are building a new scientific station, is a potential observing site in the millimetric and sub-millimetric range. AWS are operating at both sites and they have been continuously monitoring temperature, pressure, wind speed and direction for more than ten years. Site testing instruments are already operating at the South Pole (AASTO, Automated Astrophysical Site-Testing Observatory), while ''light'' experiments have been running at Dome C (APACHE, Antarctic Plateau Anisotropy CHasing Experiment) during summertime. A direct comparison between the two sites is planned in the near future, using the AASTO. The present analysis shows that the average wind speed is lower at Dome C (~1 m/s) than at the South Pole (~2 m/s), while temperature and PWV are comparable.

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