Why is Chongqing called Fire City?

This is because Chongqing has many mountains, strong ultraviolet rays but high humidity, so it is sultry in the sun in summer. Moreover, Chongqing has high temperature, high humidity, low wind speed and small temperature difference between day and night in summer. In addition, in July and August, Chongqing and the middle and lower reaches of the Yangtze River were controlled and influenced by the stable western Pacific subtropical high, and the airflow sank and warmed up, so Chongqing was called the fire city.

Chongqing is near the Yunnan-Guizhou Plateau. Daloushan, located in the south of Chongqing, falls into the Sichuan Basin with a steep slope. In summer, after the southerly monsoon crosses the Yunnan-Guizhou Plateau, it obviously sinks, warms up and warms up. At the same time, the ditches around the main city of Chongqing are vertical and horizontal, the air humidity is high, and the quality products are high and humid, which makes people feel very stuffy.

Extended data:

According to the statistics of Shapingba, Chongqing in recent 50 years, the annual average extreme maximum temperature is 39℃, the annual average number of high days above 35℃ is 3 1.3 days, and the annual average number of high humidity days above 38℃ is 5.8 days. The highest temperature in recent 50 years is 41.2℃ (1August 953 19).

In mid-2006, the continuous high temperature reached a 50-year high, reaching 44. 1℃ in some districts and counties. From July to August, the average maximum temperature in Chongqing reached 33.4℃, which was 0.5℃ higher than that in Zhanhan and 65,438 0.2℃ higher than that in Nanjing.

At the same time, Chongqing is located in the parallel valley of the Yangtze River and Jialing River, with low altitude and high air. The dense atmosphere does not weaken the solar radiation much, but it can prevent the ground heat from radiating into the air, making it difficult for the ground to dissipate heat.

References:

Baidu Encyclopedia-Chongqing