Automatic determination of wind profiles with Generalized SCIDAR

Jean-Louis Prieur (1) , Rémy Avila (2) , Gérard Daigne (3) , Jean Vernin (4)

1 LATT - Laboratoire d'Astrophysique de l'Observatoire Midi-Pyrénées
2 UNAM - Universidad Nacional Autónoma de México = National Autonomous University of Mexico
3 L3AB - Laboratoire d'astrodynamique, d'astrophysique et d'aéronomie de bordeaux
4 LUAN - Laboratoire Universitaire d'Astrophysique de Nice

We present an iterative method for deriving wind profiles from Generalized SCIDAR measurements, which can work in a non-supervised mode. It is an extension of our CLEAN-based method previously developed for C N 2 profile determination. The algorithm is based on a morphological analysis of the cross-correlation function of consecutive scintillation irradiance frames, with the introduction of some knowledge from the C N 2 profiles, which are determined from the auto correlation of those frames. This method was sucessfully tested on data from the site testing observations made at San Pedro Martir in 2000, even on the most difficult cases.

Domaines: Instrumentation et méthodes pour l'astrophysique [astro-ph.IM]

Jean-Louis Prieur, Rémy Avila, Gérard Daigne, Jean Vernin. Automatic determination of wind profiles with Generalized SCIDAR. Publications of the Astronomical Society of the Pacific, 2004, 116, pp.778-789. ⟨hal-02459905⟩