STUDY OF THE ASTROCLIMATE AT THE BAIKAL ASTROPHYSICAL OBSERVATORY
Section: ASTRONOMICAL INSTRUMENTS AND METHODS
Authors:
1.
V. E. Zuev Institute of Atmospheric Optics of the Siberian Branch of the Russian Academy of Sciences
2.
V. E. Zuev Institute of Atmospheric Optics of the Siberian Branch of the Russian Academy of Sciences
Type:
Сonference article
Published:
27.12.2024
Subject area:
52
53
520
521
523
524
52-1
52-6
41.00
29.35
29.31
29.33
29.27
29.05
03.06.01
03.05.01
03.04.03
2
223
614
6135
SCI004000
SCI005000
53
520
521
523
524
52-1
52-6
41.00
29.35
29.31
29.33
29.27
29.05
03.06.01
03.05.01
03.04.03
2
223
614
6135
SCI004000
SCI005000
Language:
English
Keywords:
atmospheric effects; site testing; instrumentation: adaptive optics
Funding:
This study was funded by the Russian Science Foundation, Grant No. 23-42-00043
Abstract (English):
The atmospheric conditions are crucial for an astronomical observatory. Earth's atmosphere limits image quality in ground-based optical telescopes. The knowledge of the atmospheric turbulence vertical distribution above an astronomical site is significant for the design and operation of adaptive optics systems as well as for scheduling the observing time. The Baikal Astrophysical Observatory (latitude $51^\circ50'$ north, longitude $104^\circ55'$ east) is the site of the 1-meter Large Solar Vacuum Telescope (LSVT). In this study we estimate the vertical distribution of optical turbulence $C_{n}^{2}$, which determines all the integrated parameters for adaptive optics. A 5-year dataset (2019–2023) of temperature and wind speed at pressure levels from the National Centers for Environmental Prediction (NCEP) / National Centers for Atmospheric Research (NCAR) Reanalysis are used for the research.
The atmospheric conditions are crucial for an astronomical observatory. Earth's atmosphere limits image quality in ground-based optical telescopes. The knowledge of the atmospheric turbulence vertical distribution above an astronomical site is significant for the design and operation of adaptive optics systems as well as for scheduling the observing time. The Baikal Astrophysical Observatory (latitude $51^\circ50'$ north, longitude $104^\circ55'$ east) is the site of the 1-meter Large Solar Vacuum Telescope (LSVT). In this study we estimate the vertical distribution of optical turbulence $C_{n}^{2}$, which determines all the integrated parameters for adaptive optics. A 5-year dataset (2019–2023) of temperature and wind speed at pressure levels from the National Centers for Environmental Prediction (NCEP) / National Centers for Atmospheric Research (NCAR) Reanalysis are used for the research.
Keywords:
atmospheric effects; site testing; instrumentation: adaptive optics
atmospheric effects; site testing; instrumentation: adaptive optics
1. Masciadri E. and Jabouille P., 2001, Astronomy & Astrophysics, 376, p. 727
2. Osborn J. and Sarazin M., 2018, Monthly Notices of the Royal Astronomical Society, 480, p. 1278
3. Tatarskii V.I., 1961, Wave Propagation in a Turbulent Medium, McGraw-Hill Book Company
