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Communication Dans Un Congrès Année : 2010

Studying the vertical extent of the ground layer turbulence using sonic-anemometers

Résumé

The optical turbulence above Dome C in winter is mainly concentrated in the first tens of meters above the ground. The properties of this so-called surface layer were investigated during the last two winterover by a set of sonics anemometers placed on a 45 m high tower. These anemometers provide measurements of the temperature and the wind speed vector. The sampling rate of 10 Hz allows to derivate the refractive index structure constant C_n^2. We report here the first analysis of these data.

Dates et versions

hal-02481888 , version 1 (17-02-2020)

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Citer

T. Travouillon, E. Aristidi, E. Fossat, E. Bondoux, Z. Challita, et al.. Studying the vertical extent of the ground layer turbulence using sonic-anemometers. 3rd ARENA Conference: An Astronomical Observatory at CONCORDIA (Dome C, Antarctica), 2009, Frascati, Italy. pp.115-118, ⟨10.1051/eas/1040016⟩. ⟨hal-02481888⟩
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