First Whole Atmosphere Nighttime Seeing Measurements at Dome C, Antarctica | Zendy

A. Agabi | Zendy; É. Aristidi | Zendy; M. Azouit | Zendy; E. Fossat | Zendy; F. Martı́n | Zendy; T. Sadibekova | Zendy; J. Vernin | Zendy; A. Ziad | Zendy

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First Whole Atmosphere Nighttime Seeing Measurements at Dome C, Antarctica

Author(s) -

A. Agabi,

É. Aristidi,

M. Azouit,

E. Fossat,

F. Martı́n,

T. Sadibekova,

J. Vernin,

A. Ziad

Publication year - 2006

Publication title -

publications of the astronomical society of the pacific

Language(s) - English

Resource type - Journals

eISSN - 1538-3873

pISSN - 0004-6280

DOI - 10.1086/498728

Subject(s) - atmosphere (unit) , dome (geology) , environmental science , atmospheric sciences , geology , elevation (ballistics) , remote sensing , meteorology , physics , geomorphology , astronomy

We report site testing results obtained in night-time during the polar autumnand winter at Dome C. These results were collected during the first Concordiawinterover by A. Agabi. They are based upon seeing and isoplanatic anglemonitoring, as well as in-situ balloon measurements 2 of the refractive indexstructure constant profiles Cn (h). Atmosphere is divided into two regions: (i)a 36 m high surface layer responsible of 87% of the turbulence and (ii) a verystable free atmosphere above with a median seeing of 0.36+-0.19 arcsec at anelevation of h = 30 m. The median seeing measured with a DIMM placed on top ofa 8.5 m high tower is 1.3+-0.8 arcsec.Comment: accepted for publication in PASP (oct 2005

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