ASTROCLIMATIC STATISTICS AT THE SAYAN SOLAR OBSERVATORY
Abstract and keywords
Abstract (English):
The paper analyzes meteorological and optical characteristics of the atmosphere at the Sayan Solar Observatory (SSO) and the future 3 m Large Solar Telescope (LST-3). We examine spatial features of changes in astroclimatic characteristics for the Sayan Solar Observatory and Baikal Astrophysical Observatory (BAO). We have obtained a vertical profile of the structural characteristic of air refractive index fluctuations for a low intensity optical turbulence along the line of sight. This profile is an important result because it will allow us to adjust the adaptive optics system of LST-3 to the best astroclimatic conditions when the correction efficiency is maximal. In order to analyze vertical profiles of optical turbulence characteristics and to assess the contribution of individual atmospheric layers to the isoplanatic angle for a minimum level of total turbulence, we give recommendations for the design of multi-conjugated adaptive optics in general and for LST-3 in particular.

Keywords:
astroclimate, adaptive optics
Text
Text (PDF): Read Download
References

1. Bolbasova L., Shikhovtsev A.Yu., Kopylov E.A., Selin A.A., Lukin V.P., Kovadlo P.G. Daytime optical turbulence and wind speed distributions at the Baykal Astrophysical Observatory. Mon. Not. Royal Astron. Soc. 2019, vol. 482, pp. 2619-2626. DOI:https://doi.org/10.1093/mnras/sty2706.

2. Bounhir A., Benkhaldoun Z., Carrasco E., Sarazin M. High-altitude wind velocity at Oukaimeden observatory. Mon. Not. Royal Astron. Soc. 2009, vol. 398, iss. 2, pp. 862-872. DOI:https://doi.org/10.1111/j.1365-2966.2009.14998.x.

3. Chueca S., García-Lorenzo B., Muñoz-Tuñón C., Fuensalida J.J. Statistics and analysis of high-altitude wind above the Canary Islands observatories. Mon. Not. Royal Astron. Soc. 2004, vol. 349, pp. 627-631. DOI:https://doi.org/10.1111/j.1365-2966.2004.07523.x.

4. García-Lorenzo B., Eff-Darwich A., Fuensalida J.J., Castro-Almazán J. Adaptive optics parameters connection to wind speed at the Teide Observatory. Mon. Not. Royal Astron. Soc. 2009, vol. 397, iss. 3, pp. 1633-1646. DOI:https://doi.org/10.1111/j.1365-2966.2009.15071.x.

5. Hash Y., Jabiri A., Ziad A., Bounhir A., Sabil M., Abahamid A., Benkhaldoun Z. Meteorological profiles and optical turbulence in the free atmosphere with NCEP/NCAR data at Oukaïmeden - I. Meteorological parameters analysis and tropospheric wind regimes. Mon. Not. Royal Astron. Soc. 2011, vol. 420, iss. 1, pp. 637-650. DOI:https://doi.org/10.1111/j.1365-2966.2011.20076.x.

6. Kabanov D.M., Sakerin S.M., Turchinovich Yu.S. Interannual and seasonal variations in the atmospheric aerosol optical depth near Tomsk (1995-2018). Optika atmosphery i okeana [Atmospheric and Oceanic Optics]. 2019, vol. 32, iss. 7, pp. 548-555. (In Russian).

7. Nosov V.V., Grigoriev V.M., Kovadlo P.G., Lukin V.P., Nosov E.V., Torgaev A.V. Recommendations for the site selections of the ground-based astronomical telescopes. Optika atmosphery i okeana [Atmospheric and Oceanic Optics]. 2010, vol. 23, iss. 12, pp. 1099-1110. (In Russian).

8. Panchuk V.E., Afanas`ev V.L. Astroclimate of Northern Caucasus - myhts and reality. Astrofizicheskii byulleten’ [Astrophys. Bull.]. 2011, vol. 66, no. 2, pp. 233-254. DOI: 10.1134/ S199034131102009X.

9. Sarazin M., Tokovinin A. The statistics of isoplanatic angle and adaptive optics time constatnt derived from DIMM data. Proc. Topical Meeting “Beyond conventional adaptive optics: a conference devoted to the development of adaptive optics for extremely large telescopes”. Venice, Italy. 2001.

10. Shikhovtsev A.Yu., Kovadlo P.G. Estimation of mean energy characteristics of atmospheric turbulence at various heights from reanalysis data. IOP. 2018, vol. 211, p. 7. DOI:https://doi.org/10.1088/1755-1315/211/1/012023.

11. Shikhovtsev A.Yu., Kovadlo P.G., Lukin V.P. Temporal variations of the turbulence profiles at the Sayan Solar Observatory site. Atmosphere. 2019, vol. 10, no. 9, p. 499. DOI:https://doi.org/10.3390/atmos10090499.

12. Shikhovtsev A.Yu., Kovadlo P.G., Lukin V.P., Kiselev A.V. Kolobov D.Yu. Design of the adaptive optics system with estimating the optical distortions at the different altitudes for large astronomical telescope. Vserossiiskaya konferentsiya “Sovremennaya zvyozdnaya astronomiya - 2019” [Russian National Conference “Modern stellar astronomy - 2019”]: Absracts. 2019, p.116. (In Russian).

13. Tatarsky V.I. Wave propagation in the turbulent atmosphere. Moscow, Nauka Publ., 1967, 548 p. (In Russian).

14. Zherebtsov G.A. SB RAS National Heliogeophysical complex. Vserossiiskaya konferentsiya po solnechno-zemnoi fizike, posvyashchennaya 100-letiyu so dnya rozhdeniya chlena-korrespondenta RAN V.E. Stepanova [The National Russian Conference on Solar-Terrestrial Physics Devoted to the Hundredth Anniversary of Corresponding Member of RAS V.E. Stepanov]: Abstracts. 2013, p. 4. (In Russian).

15. URL: http://ckp-rf.ru/usu/200615 (accessed 20 August 2019).

16. URL: https://www.ecmwf.int/en (accessed 20 August 2019).

Login or Create
* Forgot password?