Communication Dans Un Congrès Année : 2023

CATS: turbulence measurement and forecasting

Christophe Giordano
  • Fonction : Auteur
  • PersonId : 773915
  • IdRef : 185099742
Aziz Ziad
Eric Aristidi
Julien Chabé
Yan Caujolle
Christophe Bailet
  • Fonction : Auteur
  • PersonId : 1337484

Résumé

The atmospheric turbulence measurement is an essential information for high-angular resolution imaging in astronomy, and for optical link. Since 2015, the Calern Atmospheric Turbulence Station (CATS) monitors atmospheric conditions at the Calern observatory, during both daytime and nighttime from the ground to the top of the atmosphere. The station is fully autonomous and is equipped with a set of complementary instruments to continuously monitor optical turbulence. The Profiler of Moon Limb (PML) measures, from Sun or Moon limbs observation, the vertical profiles of the refractive index structure constant Cn2 with a high vertical resolution. The Generalized DIMM monitors the integrated turbulence parameters by observing bright stars. More recently, knowing the need of turbulence forecasting, we developed a system integrated in the CATS station to daily predict daytime and nighttime meteorological and optical turbulence conditions for the next 48h. We also have designed an instrumental platform attached to a drone and allowing to measure, with a high resolution, the weather conditions between the ground and an altitude of around 500m.

Fichier principal
Vignette du fichier
Giordano_2024.pdf (12.48 Mo) Télécharger le fichier
Format Autre
Licence

Dates et versions

hal-04402837 , version 1 (18-01-2024)

Licence

Identifiants

Citer

Christophe Giordano, Aziz Ziad, Eric Aristidi, Julien Chabé, Yan Caujolle, et al.. CATS: turbulence measurement and forecasting. Adaptive Optics for Extremely Large Telescopes 7th Edition, ONERA, Jun 2023, Avignon, France. ⟨10.13009/AO4ELT7-2023-114⟩. ⟨hal-04402837⟩
160 Consultations
271 Téléchargements

Altmetric

Partager

  • More