Chief forecaster of Jiangsu Meteorological Observatory: Why are the haze days frequent recently?

Experts from Jiangsu Meteorological Observatory said that the phenomenon of "inversion" is easy to occur in winter, which leads to poor atmospheric mobility and difficult diffusion of pollutants in the air. In addition, the weather temperature is low and it is easy to form smog.

Jiangsu province is located in the mid-latitude zone on the east coast of the Asian continent, which belongs to the East Asian monsoon climate zone and is in the climate transition zone between subtropical zone and warm temperate zone. Generally, it is bounded by the Huaihe River and the main irrigation canal in northern Jiangsu, and the northern region belongs to the humid and semi-humid monsoon climate in warm temperate zone; The southern region belongs to subtropical humid monsoon climate. Jiangsu province has a coastline of 1000 kilometers, and the ocean has a great influence on the climate of Jiangsu province.

Under the comprehensive influence of solar radiation, atmospheric circulation and Jiangsu's specific geographical location and geomorphological characteristics, the basic climate characteristics of Jiangsu Province are: mild climate, distinct seasons, obvious monsoon, intense heat in winter, changeable temperature in spring, crisp autumn, rainy and hot, abundant rainfall, concentrated precipitation, obvious plum rain and sufficient light and heat.

Brief introduction of Jiangsu province

Jiangsu Province, referred to as "Su" for short, is the provincial administrative region of People's Republic of China (PRC), with Nanjing as its capital, located in the Yangtze River Delta and the eastern coast, with a land span of 30 45' ~ 35 08' N and16 21'~128 E. Total area 107200 square kilometers. By the end of 20021,Jiangsu Province had 13 districts and cities and 95 counties (cities, districts). By the end of 2022, the resident population of the province was 85 1500, and the urbanization rate reached 74.4%.

Jiangsu Province was founded in the early Qing Dynasty and was named after the initials of jiangning house and Suzhou. Jiangsu is an important birthplace of Chinese nation and civilization, with multi-cultural and regional characteristics such as Wu culture, Jinling culture, Huaiyang culture and Chu culture, and * * * owns 13 national historical and cultural cities.

Jiangsu lies across the river and faces the sea, with many lakes and flat terrain. The terrain consists of plains, waters and low hills. East of the Yellow Sea, across the Yangtze River and Huaihe River. Jiangsu geographically spans the north and south, and its climate and vegetation have both characteristics of the north and the south.

Reference to the above content: Baidu Encyclopedia-Jiangsu Province