What does the End of Heat mean?

The End of Heat is the 14th of the 24 solar terms in the lunar calendar, when the sun reaches 150 degrees of longitude around August 23 of the Gregorian calendar. The End of Heat's solar terms mean entering an autumn of meteorological significance. After the End of Heat, the temperature in the area north of the Yangtze River in China gradually dropped, which means "out of the summer" and leaving in the heat.

The origin of the End of Heat's solar terms

When the sun reaches 150 degrees longitude, it is the End of Heat of the 24 solar terms in the lunar calendar. The End of Heat is a solar term that reflects the change of temperature. "place" means to hide and stop. "the End of Heat" means that the hot summer day is over. "place" means to stop, indicating that the heat is about to pass, the summer heat will end on this day, and the temperature in most parts of our country is gradually dropping. The End of Heat is not only different from Lesser Heat, Greater Heat, but also different from Lesser Cold and Greater Cold solar terms, which represents the transition of temperature from hot to cold.

In our country, the End of Heat is divided into three periods: "the eagle is a bird sacrifice, the second is heaven and earth, and the third is he." In this solar term, eagles began to hunt birds in large quantities, and everything in heaven and earth began to wither. "he Nai Deng" refers to the general name of millet, millet, rice and sorghum crops, and "Deng" means mature. After the End of Heat, except for South China and Southwest China, the rainy season is coming to an end in most parts of China, and the precipitation is gradually decreasing. Especially in North China, Northeast and Northwest China, we must pay close attention to water storage and soil moisture conservation, so as to prevent drought during autumn planting and delay the sowing date of winter crops.

Weather characteristics of the End of Heat

1. Temperature drop: the End of Heat's solar terms, it is not enough to describe the temperature as it begins to drop. The drop in temperature is just one of the phenomena. The reason behind this phenomenon, first of all, is that the direct point of the sun continues to move southward, the solar radiation weakens, and the second is that the subtropical high retreats southward by leaps and bounds, and the Mongolian cold high begins to try, punching out its feet and showing its edge.

2. Crisp autumn: during the period of the End of Heat, only the northeast and northwest regions really entered autumn. However, whenever the cold air affects our country, if the air is dry, it will often bring windy weather, and if there is warm and wet air transport in the atmosphere, it will often form a decent autumn rain. Often after the wind and rain, especially after the rain, people will feel a more obvious cooling. There may also be a large precipitation process in the Jianghuai region in the south of the north. The temperature drops obviously, the temperature difference between day and night increases, and the bright sun is in the sky after rain. people often do not adapt to the hot and cold changes at the turn of summer and autumn, which can easily lead to respiratory tract, gastroenteritis, colds and other diseases.

3. Autumn tiger: although the subtropical high, which is dominant in summer, strides southward, it is not willing to give up its dominance and retreat to the western Pacific Ocean easily. In the southern region under its control, people who have just felt a trace of autumn coolness often feel the hot weather again at the end of the End of Heat. This is the veritable "autumn tiger". For areas that have just walked out of three volts and suffered severe summer drought, if they continue to be controlled by subtropical high, it is often easy to form continuous drought in summer and autumn, so that the autumn fire prevention period is greatly advanced, so we need to be vigilant. It should be said that the middle and lower reaches of the Yangtze River often usher in a crisp autumn spring after the end of the autumn tiger weather, but not until after October. During this period, the general trend of torrential rain across the country has weakened.

4. Thunderstorm activity: thunderstorm activity is not as active as in summer, but thunderstorm activity is still more in South, Southwest and West China. In South China, because the warm and humid air flow at low latitudes is still active, there are more thunderstorms than other places, while the southwest and West China are located at the edge of the subtropical high and the role of mountains, thunderstorms are also more active. In September, most of China began to enter the period of less rain, while there was more autumn rain in West China.

The End of Heat's Custom activities

1. Travel to welcome the autumn: offering sacrifices to ancestors, welcoming the autumn the End of Heat's folk customs before and after the solar terms are mostly related to ancestor worship and welcoming the autumn. Around the End of Heat, there will be folk activities to celebrate Zhongyuan, commonly known as "July and a half" or "Ghost Festival". In the old days, the folk began to open the ghost door together in early July, and Pudu almsgiving activities were held until the ghost door was closed at the end of the month. It is said that the Pudu activity began by opening the ghost door, then put up lights and poles and put the river lantern to cause ghosts, while the main body was building Pudu altar, erecting isolated sheds, robbing orphans, and so on, and finally ended with closing the ghost door.

2. Put the river lantern: the river lantern is also called "lotus lantern". It usually puts lamps or candles on the base, and on the night of the Middle Yuan Festival, it is placed in the rivers, lakes and seas to let it drift. The river lantern is for the drowning ghosts and other ghosts in the Pudu water. A passage in Xiao Hong's Biography of the Hulan River is the best footnote to this custom: "the fifteenth day of July is a festival of ghosts, dead ghosts complain about ghosts, can not be entrusted, lingering in hell is very bitter, want to support life, but can not find a way." If there is a dead man holding a river lantern on this day, he will have to give birth. "

3. Open fishing Festival: for coastal fishermen, during the fishing harvest season after the End of Heat, every year during the End of Heat's period, an annual grand fishing opening festival will be held along the coast of Zhejiang Province, and it is decided that on the day when the fishing moratorium ends in the East China Sea, a grand fishing opening ceremony will be held to see the fishermen off to sea.

4. The custom of splashing water: in Japan, during the one-month period from Greater Heat to everywhere, there is a custom of organized splashing water to cool down in various parts of Japan.