STUDYING THE VERTICAL EXTENT OF THE GROUND LAYER TURBULENCE USING SONIC-ANEMOMETERS.

Authors :: Travouillon, T.
Aristidi, E.
Fossat, E.
Bondoux, E.
Challita, Z.
Mekarnia, D.
Jeanneaux, F.
Odoardi, D.
Lawrence, J. S.
Source :: EAS Publications Series; 2010, Vol. 40, p115-118, 4p, 2 Charts, 1 Graph
Publication Year :: 2010
Abstract: 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<subscript>n</subscript><superscript>2</superscript>. We report here the first analysis of these data. [ABSTRACT FROM AUTHOR]

Subjects :: TURBULENCE
ATMOSPHERIC boundary layer
ACOUSTICAL engineering
ANEMOMETER
WIND speed
REFRACTIVE index

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