202 1 solar term is the summer solstice a summer solar term? What are the weather characteristics?

Among the 24 solar terms in China, the summer solstice is the one after the Mang solar term. Many people have a lot of doubts about this solar term, so is the summer solstice of 202 1 a summer solar term? What are the weather characteristics of summer solstice? Let's learn about the analysis together!

202 1 solar term is the summer solstice a summer solar term? Yes, the summer solstice is a summer solar term. Summer solstice is one of the 24 solar terms, which occurs on June 20th, or 2 1, or 22nd of the Gregorian calendar every year. On the day of summer solstice, the sun moves to 90 degrees of the yellow meridian (summer solstice, currently in Gemini), and the position where the sun directly hits the ground reaches the northernmost point of the year, almost directly to the Tropic of Cancer. At this time, the daylight hours in all parts of the northern hemisphere reach the longest in the whole year.

What are the characteristics of the summer solstice weather? After the summer solstice in convective weather, the ground is heated strongly and the air convection is strong. Thundershowers usually form in the afternoon to evening. This kind of hot thunderstorm comes and goes, and the rainfall range is small. People call it "dividing fields in summer and rain". Liu Yuxi, a poet in the Tang Dynasty, skillfully used this weather to write a famous poem, "The east rises and the west falls, and the road is sunny and sunny." The heavy precipitation brought by convective weather is not always as beautiful as described in the poem, and it often brings local disasters. In his poem It's Rain in Summer, the poet Xu Xinshu also appropriately described the thunderstorm weather in summer: "It's windy in summer, sitting on the stage in summer, frogs chirping and attacking the dust. The golden gongs are ringing in the air, and the cold rain is like money. "

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 pose a threat to people's lives and property. Attention should be paid to strengthening flood control.

The summer solstice season of Meiyu in Jianghuai area is "Meiyu" season. At this time, it is the yellow ripening period of plums in Jiangnan, and the air is very humid. Cold and warm air masses meet here, forming a trough of low pressure, leading to rainy weather. In this weather, the utensils are moldy and the human body feels 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.

The summer solstice of high-temperature sauna is the same as the winter solstice, which reflects the changes of the four seasons. Astronomy stipulates that the summer solstice is the beginning of summer in the northern hemisphere. After the summer solstice, although the direct point of the sun began to move southward from the Tropic of Cancer, the days in the northern hemisphere became shorter and the nights became longer. For the Tropic of Cancer and its northern area, the height of the sun at noon is also decreasing day by day. However, because the heat radiated from the sun to the ground is still more than the heat radiated from the ground to the air, the temperature will continue to rise in the future, so there is a saying that it is not too hot from summer to the sun. According to the data of 195 1 to 2006, the historical extremes of many cities in the north appeared after the summer solstice.

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