Measurements of local astroclimate characteristics near the Large Solar Vacuum Telescope

Details Measurements of local astroclimate characteristics near the Large Solar Vacuum Telescope Measurements of local astroclimate characteristics near the Large Solar Vacuum Telescope

Nov 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006spie.6522e..29n&link_type=abstract

Thirteenth Joint International Symposium on Atmospheric and Ocean Optics/ Atmospheric Physics. Edited by Matvienko, Gennadii G.;

Physics

Optics

Scientific paper

The work presents the results of measuring the characteristics of local astroclimate near the Large Solar Vacuum Telescope (LSVT, located in the Listvyanka village of Irkutsk region). For measurements we used a mobile ultrasonic meteorological system "Meteo2M" designed at the Institute of Atmospheric Optics. The measurements were performed near the telescope and on the telescope siderostat platform near the dome and the mirror. Then we are measuring the high-altitude profiles of the fluctuations of the refractive index (structure constant) Cn2 along the telescope tower. It has been established that the profiles of the Cn2, the averaged temperature and other parameters do not coincide with the results of the similarity theory for a flat underlying surface. In our measurements the oscillating behaviour of high-altitude profiles is observed. On the basis of the results obtained we can explain the oscillating character by the presence of periodic inhomogeneities of the underlying surface near the telescope, as the surface has various degrees of heating.

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