What is the Great Cold? What is the origin of the Great Cold?
Introduction: The Great Cold is the last solar term of the 24 solar terms in our country and is also the coldest time of the year. So what is the Great Cold solar term? What is the origin of the Great Cold? Let’s follow the editor to find out! The biting cold wind cannot blow away people's enthusiasm for the twelfth lunar month. Festivals and celebrations are coming one after another. The Fortune Teller website has prepared a lot of information about the twelfth lunar month for you, please feel free to check it out.What is the Great Cold?Dahan is the last solar term among the 24 solar terms in the year. Around January 20th of the Gregorian calendar every year, when the sun reaches 300° of the ecliptic longitude, it is the Great Cold. "Collected Explanations of the 72 Solar Terms in the Lunar Calendar": "In the middle of December, the explanation is as above (Minor Cold)." "Shushi Tongkao·Tianshi" quotes "Three Rituals and Meanings": "Dahan is the middle one, above Minor Cold, so it is called Dahan... It is the coldest extreme, so it is called Dahan." At this time, cold waves frequently move southward, and it is the coldest period of the year in some parts of China. It has strong winds, low temperatures, and snow on the ground that does not melt, presenting a severe cold scene of ice and snow. During this period, departments such as railways, post and telecommunications, petroleum, power transmission lines, and water transportation should pay special attention to taking early measures to prevent disastrous weather such as strong winds, cooling, and heavy snow. In agriculture, we must strengthen the protection of livestock and overwintering crops against cold and frost.What is the origin of the Great Cold?Dahan is the last solar term among the 24 solar terms. It occurs when the sun reaches 300° of the ecliptic longitude around January 20 every year. Dahan means the weather is extremely cold. "Shushi Tongkao·Tianshi" quotes "Sanli Yi Zong": "The Great Cold is the middle cold, which is above the Lesser Cold, so it is called the Great Cold... It is the coldest time of the year in most parts of my country, with strong winds, low temperatures, and snow on the ground that does not melt, presenting a severe cold scene of ice and snow and freezing weather. In ancient my country, the Great Cold was divided into three stages: "The first stage is that chickens lay eggs; the second stage is that migratory birds fly fast; the third stage is that the ice in water and marshes becomes solid." This means that chicks can be hatched during the Great Cold; and migratory birds such as hawks and falcons are in a state of extremely strong hunting ability, hovering in the air looking for food to replenish their body energy to resist the severe cold; during the last five days of the year, the ice in the water freezes all the way to the center of the water, and is the solidest and thickest. During the Great Cold period, the atmospheric circulation is relatively stable, and the circulation adjustment cycle is about 20 days. When this circulation adjusts, large-scale rain, snow, strong winds and cooling temperatures often occur. When there is a long wave ridge west of 80 degrees east longitude and a large coastal trough in East Asia, my country will experience sustained low temperatures due to the control of northwesterly airflow and the continuous replenishment of cold air. Summary: The above content is about [What is the Great Cold solar term? What is the origin of the Great Cold? 】Problem analysis, hope it can help everyone! |
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