Characteristics of summer solstice in 24 solar terms

After the summer, the ground is heated strongly and the air convection is strong, and thunderstorms often form in the afternoon to evening. This hot thunderstorm came suddenly and went quickly, and the rainfall range was small. People call it "dividing fields in summer and rain". Liu Yuxi, a poet in the Tang Dynasty, skillfully borrowed this kind of weather and wrote a famous sentence, "Sunrise in the east, sunset in the west, drizzling, but the road is clear."

The heavy precipitation brought by convective weather is not as beautiful as described in the poem, and it often brings local disasters. In his poem "Summer Rain", the poet Xu Shuxin also appropriately described the thunderstorm weather in summer: "In summer, when the wind blows, people sit on the stage, frogs and cicadas make noise and attack the dust. Golden gongs ring the sky, and cold rain is like money. "

2. Rainstorm weather

In most cases, during the "summer solstice", it is the rainy season in the middle and lower reaches of the Yangtze River and the Jianghuai basin. Frequent rainstorms can easily lead to floods and even threaten people's lives and property. Therefore, we should pay attention to strengthening flood control. Summer is the "Meiyu" season in Jianghuai area, and it is the yellow ripening period of plums in Jiangnan area. The air is very humid, and the cold and warm air masses meet here to form a trough of low pressure, which leads to continuous rainy weather.

In this weather, the utensils are moldy, which makes people uncomfortable. Some mosquitoes breed quickly, and some intestinal bacteria are easy to breed. At this time, we should pay attention to drinking water hygiene and try not to eat cold food to prevent the occurrence and spread of infectious diseases.

Solar solstice summer astronomical calendar:

This summer, the sun shines directly on the ground, directly to the northernmost part of the year, almost directly to the Tropic of Cancer (23 26' north latitude). The day in the northern hemisphere is the longest, and the farther north it is, the longer it is.

For example, Haikou 13 hour in Hainan, Mohe 17 hour in Heilongjiang and 0/5 hour in Beijing. And this day is the biggest day that the sun illuminates the northern hemisphere in a year, and it is also the highest day from the earth.

After the summer, the direct position of the sun on the ground gradually moved southward, and the days in the northern hemisphere became shorter and shorter. There is a folk proverb that "after eating noodles on the solstice in summer, the day becomes shorter". At this time, the southern hemisphere is in the middle of winter.