Climatic characteristics of summer solstice

Introduction: It's summer, which means it's very hot. In this season of rising temperature, we should guard against the troubles caused by the high temperature of dikes, and be careful not to make ourselves bored, otherwise it will easily get angry. So, what are the climatic characteristics of summer solstice? What are the climatic characteristics of the 24 solar terms during the summer solstice? If you want to know, please have a look at my introduction.

Climatic characteristics of summer solstice

1. Climatic characteristics of summer solstice solar terms: rainy season

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.

Two. Climatic characteristics of summer solstice solar terms: convective weather

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 poem "It rains in the west, 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.

Climatic characteristics of summer solstice solar terms: high temperature sauna

Like the winter solstice, the summer solstice is also a solar term reflecting 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 sunlight point began to move south 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 also drops day by day at noon. However, because the' heat' radiated by 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 the summer solstice won't be too hot. According to the data of 195 1 to 2006, the historical extremes of many cities in northern China appeared after the summer solstice.

Four. Climatic characteristics of summer solstice solar terms: 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. After entering the summer, relevant departments should pay attention to the adverse effects of rain on transportation and tourism and do corresponding preventive work; Please be careful and slow on the way to work, and pay attention to the road conditions and weather changes in time.

Climatic characteristics of 24 solar terms from summer to solar day

The summer solstice, also known as the summer solstice and the summer solstice festival, is the tenth solar term in the 24 solar terms, in the middle of May. From the name, the arrival of solstice summer represents a hot summer.

The summer solstice is the northernmost day of the year and the longest sunshine day in the northern hemisphere. However, after the summer solstice, the point of direct sunlight gradually becomes difficult to move away from the Tropic of Cancer, and the days in the northern hemisphere begin to shorten gradually.

Summer is characterized by heavy rain, plum rain, high temperature and high humidity. In other words, after the summer solstice, the ground is heated strongly, which is easy to form convective weather. For example, thunderstorms with a relatively small rainfall range are prone to occur.

Third, there will be "Meiyu" weather in the Jianghuai area of China. At this time, the air is very humid, and the cold and warm air masses meet here to form a trough of low pressure, which will lead to continuous rainy weather.

At this time, with the increase of water in the air, it will become more humid. At this time, attention should be paid to moisture-proof hygiene. High temperature and humid environment is easy to breed bacteria.

In addition, when the summer solstice comes, the most obvious weather change is that the temperature will continue to rise for some time. For the summer solstice, there is a folk saying that the summer solstice is not too hot.

When is the hottest in summer?

July and August are the hottest months, and "three volts" refers to the first, middle and last three volts, that is, from mid-July to mid-August every year. After the summer solstice, although the days are getting shorter and the nights are getting longer, the days are longer than the nights. Every day, the ground absorbs more heat than it emits, and the temperature near the ground is getting higher every day. During the "three volts" period, the heat absorbed by the ground is almost less than the heat emitted, and the weather is the hottest.

Later, the heat absorbed by the ground began to be less than the heat emitted by the ground, and the temperature slowly dropped. Therefore, the hottest time of the year usually occurs on the solstice in summer.

The hottest time in summer is 2-3 pm. At this time, although the sun is inclined to the west, the altitude angle is still very large, and the heat stored on the surface is still greater than the heat released, so that the temperature continues to rise, the local surface heat balance, and the surface temperature reaches its peak. After that, the heat released from the surface is greater than the stored heat, which reduces the surface temperature.