Application of the WRF model to estimation of the precipitable water vapor over the Sayan Solar Observatory and Khulugaysha Peak
M.Yu. Shikhovtsev1,2, A.Yu. Shikhovtsev1, A.A. Lezhenin3, V.S. Gradov3, V.B. Khaikin4, K.E. Kirichenko1, P.G. Kovadlo1
1Institute of Solar-Terrestrial Physics of the Siberian Branch of the RAS, Irkutsk, Russia
2Limnological Institute of the Siberian Branch of the RAS, Irkutsk, Russia
3Institute of Computational Mathematics and Mathematical Geophysics of the Siberian Branch of the RAS, Novosibirsk, Russia
4Special Astrophysical Observatory of the Russian Academy of Sciences, Nizhnij Arkhyz, Russia
Keywords: precipitable water vapor, millimeter telescope, WRF, Sayan Solar Observatory, Hulugaisha peak
Abstract
Precipitated water vapor (PWV) is the main gas that causes atmospheric opacity in millimeter and submillimeter wavelength ranges. This study uses the mesoscale Weather Research and Forecasting (WRF) model to effectively estimate PWV levels in order to determine the conditions at existing observatory sites and identify potential locations for a new large millimeter telescope. The results show that the WRF model successfully reproduces the spatio-temporal variability of PWV, identifying areas with minimal moisture content, which can be used for planning telescope observations.
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