Can the smog in China become a barrier to avoid spy satellites?

Recently, many places in the country have suffered from severe smog weather, and one of the important reasons is naturally air pollution. Of course, no one likes to pollute the turbid air, which is full of suspended particles harmful to human health. However, have any friends thought that this heavily polluted haze weather may have a great impact on enemy military satellite reconnaissance, and it is difficult for enemy satellite photography to penetrate haze, low clouds and fog.

First of all, it is certain that the observation in visible light band will be affected by the weather. After all, rain and fog will directly block the visible light reflected or emitted by the ground, which also makes the software unrecoverable. MD reconnaissance satellites generally run in geosynchronous orbit, so we calculate according to the resolution of 1cm (there is still a little distance from seeing my sister's face clearly), and the optical aperture of the satellite should be more than 1000 meters to achieve the effect in Enemy of the Country.

Because the resolution of reconnaissance satellites involves secrets and there is no accurate data, it is basically calculated by extremely limited public data. The black-and-white resolution of the new Geo-Eye commercial satellite can reach 0.5m (because it is not in a very high geosynchronous orbit, the resolution can be easily improved). The new generation of reconnaissance satellites planned by the United States may even reach an amazing resolution of 0. 15m, that is, 15cm. China's latest reconnaissance satellite can reach the detection accuracy of about 0.62m..

Perhaps during the war, the effect of satellite reconnaissance and precision strike by the US military will be greatly reduced because of the serious smog in China's target airspace, especially in Beijing, where there are many smog in one year, and it may be more serious in winter. If the United States wants to attack China's administrative center, it will find that its precision-guided weapon attack effect is not ideal, especially when the smog weather in Beijing is serious in winter. But this influence is limited after all, because MD has always attached importance to astronomical and meteorological observation. Even if the smog weather effect is not ideal, you can pay close attention to the weather changes and choose a time with good weather to continue reconnaissance and attack. Therefore, the haze weather factor may cause some troubles to the enemy, but it cannot completely stop the enemy's military action. What's more, smog itself will also reduce our detection ability. We are also affected by smog, so it is difficult to find and deal with it earlier.