The analysis of distribution of meteorological over China in astronomical site selection

Cai-yun Zhang; Ning-quan Weng

doi:10.1117/12.2057676

21 February 2014 The analysis of distribution of meteorological over China in astronomical site selection

Cai-yun Zhang, Ning-quan Weng

Proceedings Volume 9142, Selected Papers from Conferences of the Photoelectronic Technology Committee of the Chinese Society of Astronautics: Optical Imaging, Remote Sensing, and Laser-Matter Interaction 2013; 914221 (2014) https://doi.org/10.1117/12.2057676
Event: Selected Proceedings of the Photoelectronic Technology Committee Conferences held July-December 2013, 2013, SuZhou, China

Abstract

The distribution of parameters such as sunshine hours, precipitation, and visibility were obtained by analyzing the meteorological data in 906 stations of China during 1981~2012. And the month and annual variations of the parameters in some typical stations were discussed. The results show that: (1) the distribution of clear days is similar to that of sunshine hours, the values of which decrease from north to south and from west to east. The distributions of cloud, precipitation and vapor pressure are opposite. (2) The northwest areas in China have the characteristic such as low precipitation and vapor pressure, small cloud clever, and good visibility, which are the general conditions of astronomical site selection. (3) The parameters have obvious month variation. There are large precipitation, long sunshine hours and strong radiation in the mid months of one year, which are opposite in beginning and ending of one year. (4) In the selected stations, the value of vapor pressure decreases year by year, and the optical depth is similar or invariable. All the above results provided for astronomical site selection.

Citation Download Citation

Cai-yun Zhang and Ning-quan Weng "The analysis of distribution of meteorological over China in astronomical site selection", Proc. SPIE 9142, Selected Papers from Conferences of the Photoelectronic Technology Committee of the Chinese Society of Astronautics: Optical Imaging, Remote Sensing, and Laser-Matter Interaction 2013, 914221 (21 February 2014); https://doi.org/10.1117/12.2057676

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KEYWORDS

Astronomy

Clouds

Visibility

Meteorology

Aerosols

Atmospheric optics

Climatology

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