EDP Sciences
Free access
Volume 414, Number 3, February II 2004
Page(s) L33 - L36
Section Letters
DOI http://dx.doi.org/10.1051/0004-6361:20031770

A&A 414, L33-L36 (2004)
DOI: 10.1051/0004-6361:20031770


Towards the monitoring of atmospheric turbulence model

A. Ziad1, J. Borgnino1, F. Martin1, J. Maire1 and D. Mourard2

1  Laboratoire Universitaire d'Astrophysique de Nice, UMR 6525, Université de Nice-Sophia Antipolis, Parc Valrose, 06108 Nice Cedex 2, France
2  Observatoire de la Côte d'Azur, Département Fresnel, UMR 6528, 2130 route de l'Observatoire, 06460 Caussols, France

(Received 23 July 2003 / Accepted 5 December 2003 )

A new method is proposed for the verification of the atmospheric turbulence model. It is based on the reconstruction of the phase structure function from simultaneous measurements of the Angle-of-Arrival longitudinal covariance at different baselines with the Generalized Seeing Monitor (GSM). In addition, with this new technique we obtain the first non-model dependent estimates of the outer scale with the GSM. Preliminary results of the reconstructed phase structure function with this technique are presented and compared to those obtained theoretically with the most known atmospheric turbulence models.

Key words: atmospheric turbulence

Offprint request: A. Ziad, ziad@unice.fr

© ESO 2004