As far as the climatic conditions for the launch of Shenzhou 14 manned spacecraft are concerned, what are the climatic conditions of Jiuquan Satellite Launch Center?

Jiuquan Satellite Launch Center, also known as Dongfeng Space City, is the earliest space launch center established in China. Located in Jiuquan, Gansu and Alashan League, Inner Mongolia. The space launch site is located in Ejina Banner, Alxa League. Jiuquan Satellite Launch Center was formerly a missile testing ground. ? 1957 started construction, and 1960 domestic short-range missiles were successfully launched. ? 1965, China officially established a project to develop a space launch vehicle. Jiuquan missile test site has relatively complete facilities and naturally undertakes the follow-up space launch mission. Later, it became the only manned space launch site in China and one of the three largest space launch sites in the world. ?

Jiuquan is located in the hinterland of Gansu Province, China. On the one hand, when the rocket is launched, the lower part of the booster will separate and fall, although Jiuquan area is vast and sparsely populated, and there are not many high-rise buildings around. Located in the Gobi desert in the northwest, if the launch fails, it will not cause direct and serious losses to the lives and property of local residents. On the other hand, satellite launch is a state secret, and the location of inland areas increases the concealment of work. Far from the coastline, it is not easily disturbed by external conditions, which can ensure the confidentiality and safety of satellite launch to a certain extent.

Jiuquan has many sunny days, long days, less precipitation throughout the year and high air visibility. The launch test can last about 300 days a year, which provides a good natural environment and is conducive to the launch of satellites. Otherwise, it is not conducive to the satellite in wet and cloudy places. This launch will greatly affect the launch capability of the launch site. The flat and open terrain is conducive to satellite manufacturing and later launch. The railway transportation facilities around Jiuquan are perfect, which can meet the needs of satellite launching technology and equipment transportation. These conditions are very important for satellite launch. If these conditions are not met, it will directly increase the difficulty of launch and increase the risk of launch failure.

The launch sites of satellites and spacecraft have strict requirements on weather conditions. The best meteorological conditions for manned space launch are as follows: experts say that the weather conditions at the launch site should be suitable, preferably with thin clouds, no precipitation, low ground wind speed and high visibility, and no lightning weather within 30 degrees to 40 kilometers from the launch site. The sky shot by the ship's arrow is 3 to 18 kilometers, and the wind speed is less than 70 meters per second. The dry climate is suitable for launching arrows, which provides good insulation conditions for spacecraft circuits.