Traditional Culture Encyclopedia - The 24 Solar Terms - Is summer the hottest time? Is summer the hottest time of the year?
Is summer the hottest time? Is summer the hottest time of the year?
Is summer the hottest time? Is summer the hottest time of the year?
In most parts of our country, summer is the hottest time of the year.
Summer is hot because the heat on the earth's surface mainly comes from the sun. Every year from the summer solstice, the sun shines directly on the Tropic of Cancer, and the heat on the earth's surface is the greatest. Secondly, during the hot summer, the time difference between day and night is large, which is 13 hours during the day and 1 1 hour at night, with a time difference of 2 hours. Because the days are long and the nights are short in summer, the heat gained during the day is more than the heat radiated at night, and the income and expenditure are unbalanced, so the temperature accumulation near the surface will become larger and larger, reaching the maximum during the summer solar term. It is precisely because of the solar altitude angle and heat budget that the summer solar term temperature is the highest.
"The summer heat is not hot, but the summer heat is in dog days". At this time, it is around midsummer. Extreme high temperature weather often occurs in many areas of our country. On a sunny day, it is often unbearably hot; It's boring when it rains. In fact, since the summer solstice, the surface has absorbed heat and the temperature has been rising. The heat is coming, and the temperature just rises to the highest. On a midsummer day, solar radiation warms the earth's surface. So this is the hottest time of the year.
Is it still hot after the summer solar term?
The heat is the last solar term in summer. Every year on July 22 or 23 of Gregorian calendar, when the sun reaches 120 degrees, it is a great summer heat. It is the hottest period with the highest temperature in a year just before and after the "mid-crouching".
Entering the hot summer is the hottest period of the year. Twenty-four solar terms: "in mid-June, ... it is hot and hot, divided into small and small at the beginning of the month, and it is still hot." The great summer heat reflects that the degree of extreme heat has reached the extreme, and it is the hottest solar term in a year.
The summer heat is relatively mild, as the name implies, it is relatively hot. According to the surface climate data of China1971~ the statistics of extreme maximum temperature in August of 30 years in 2000, it can be seen that the extreme maximum temperature in July in some provinces and regions appeared in late July, and the extreme maximum temperature in most provinces and regions appeared in early August, just in the summer of July and August of the following year.
The ancient book says, "The great is extremely hot." The degree of heat is from small to large, followed by beginning of autumn, which is in line with the law of extremes meet, and we can see the degree of heat in summer.
The reason why it is so hot during the summer heat is that Nanjing is often controlled by subtropical high, with high temperature and summer heat and little precipitation. In addition, usually since the summer, the heat absorbed from the ground sun during the day is more than the heat emitted at night, and the heat continues to accumulate. During the summer heat, the accumulated heat reached its peak, so the solar term was the hottest.
Extreme high temperature weather often occurs in many areas of our country. On a sunny day, it is often unbearably hot; It's stuffy and hard to breathe when it rains. There are folk proverbs such as "a little summer heat, steaming on the top and cooking on the bottom", "Misgurnus died of heat before and after the great summer heat" and "the great summer heat is coming, the summer heat is coming".
The summer solar term is followed by the beginning of autumn solar term, and the sun reaches 135 on August 7th or 8th every year. "Autumn" means that summer is cool, which means the beginning of autumn. But after beginning of autumn, there are autumn tigers, which are also very hot at this time.
With the arrival of the great summer heat, the Mid-Autumn Festival in the dog days of July 23rd also followed. This year's "Zhongfu" has 20 days. The last day is 10, and with the autumn tiger, it is expected that the weather will start to turn cold by the end of August.
Tips for heatstroke prevention in summer and solar terms
1, get enough sleep and arrange rest time reasonably. Only by ensuring enough physical strength can we fight against the heat.
2, wearing light-colored clothes, mainly loose, is conducive to emitting human body heat, light-colored clothes, not absorbing heat will also make people feel cool.
3. Drink water frequently. Drinking water slowly in summer can replenish the water lost by the body in time and take away excess heat through the circulation of the body.
Try not to go out at noon in summer. Staying in a cool indoor environment during the hottest period is the simplest and most effective way to prevent heatstroke and cool down. If you have to go out, don't feel trouble. Please take a parasol.
As a car owner, try not to leave old people and children alone in the car. This car is sealed. Even if it is not noon in summer, people in the car will suffer from heatstroke due to high temperature.
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