Where are the four stoves in China?

The four big cities with hot summer climate are called "four stoves"

The word "stove" first reflected the intuitive feelings of the public, and there was no clear definition and standard for a long time. After 2 1 century, the furnace city began to take heat index, high temperature days, continuous high temperature days, summer average maximum temperature and minimum temperature as consideration factors.

20 10 updated four new stoves, namely Chongqing, Fuzhou, Hangzhou and Nanchang. Weibo, the official city of China Weather TV, has also released a new ranking of China stove cities. The top 15 are Fuzhou and? Chongqing? Hangzhou? Haikou,? Changsha? Nanchang, Wuhan, Nanning, Xi, Guangzhou, Shijiazhuang, Zhengzhou,? Hefei, Nanjing, Jinan and Shanghai.

Due to the changes of atmospheric circulation and other factors, the furnace market began to change, and the daily increase of high temperature in some areas was obvious. Some cities began to plant trees, and the heat represented by Nanjing in traditional stoves gradually decreased compared with other cities in southern China.

Reasons for formation:

The heat in Chongqing originates from the topography. The "Chongqing Furnace" is an alchemy of Laoshan Mountain, which is a famous high temperature area in midsummer in China. Experts believe that the rainy summer in mountain cities is the result of industrialization and the increase of industrial emissions (sulfur dioxide, tiny dust, etc.). ) affects solar radiation, leading to an increase in precipitation and a relative decrease in the number of high temperature days. Such "artificial rainfall" is an "unexpected harvest" of environmental pollution to a certain extent. Cities in the middle and lower reaches of the Yangtze River, such as Chongqing, Wuhan and Nanjing, are often sultry in summer, mainly controlled by the western Pacific subtropical high, and maintain high temperature and humidity for a long time. Especially in the middle and late July and early August, the subtropical high is generally maintained in the middle and lower reaches of the Yangtze River and its vicinity, making these areas sweltering.

Jiangcheng Wuhan can be called "the first generation of furnace leaders". There are many rivers and lakes here, a lot of water vapor evaporates, and the whole city is shrouded in clouds of hot air. On the one hand, it slows down the radiation speed of geothermal energy into the air, on the other hand, it makes it difficult for the human body surface to dissipate heat, just like washing a sauna, sweating and sultry. 1one day in 934, Wuhan recorded a temperature of 4 1.3℃, which won the title of "Furnace Chief" for Jiangcheng.

Nanjing has won the essence of "Summer 99" in the south of the Yangtze River: never leave your hands and sweat like taking a bath. The high temperatures in Nanjing and Shanghai are comparable, but Shanghai's coastal topography dwarfs Nanjing. Shanghai is much cooler than Nanjing at night because of the air pressure difference between land and sea. Although the maximum daily temperature in the two places is similar, the average daily temperature in Shanghai is relatively low.