Traditional Culture Encyclopedia - Weather forecast - Fengyu gangcheng
Fengyu gangcheng
(2) According to the high temperature in winter in Panzhihua, on the basis of the above problems, the weather characteristics can be described from the perspectives of rain and snow, temperature and pressure, wind direction and weather conditions.
(3) It belongs to the argumentation question, which belongs to the fourth aspect of the examination objectives and requirements in the examination syllabus: demonstrating and discussing geographical issues. The goal level is high, but the proposer can simplify the complex and embody this requirement with easier topics. The air quality problem is analyzed from two aspects: natural and artificial. Baili steel city shows that industry, especially heavy industry, emits a lot of pollutants and waste gas from urban traffic; Located in the alpine valley, the air is not easy to spread, and the accumulation of pollutants produces pollution and smog.
So the answer is: (1) Due to the terrain, winter is less affected by the cold air (cold wave) in the north;
Located in the valley of the river (Jinsha River), the mountain is high and the valley is deep, and the downward flow prevails, and the airflow heats up during the sinking process.
(2) More sunny days, less clouds and rain, weak wind, high temperature and relatively stable (small fluctuation)
(3) Iron and steel industry, other industries, urban traffic, etc. emit a lot of waste gas; The terrain (high mountains and deep valleys) is relatively closed, and the downward flowing air is stable (prone to inversion), which is not conducive to the diffusion of pollutants in the air (so the air quality is not good and it is not suitable for holidays).
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