A brief introduction to the origin of cold dew, the origin and customs of cold dew What is the origi

The cold dew is the end of the month of the Ganzhi calendar and the beginning of the month of Xu. At night, if you look up at the starry sky, you will find that the "Great Mars" (Antares), which represents the height of summer, has sunk in the west. After the cold dew, the height of the sun continues to decrease and the temperature gradually drops.

The temperature of the cold dew drops a lot compared with the white dew solar term, and the cold dew condenses, so it is called "cold dew".

In Chinese folk, there is a proverb that "the dew is white first and then cold", which means that after the white dew solar term, the dew turns from the early autumn with a hint of coolness to the late autumn with a bit of cold "white dew and frost". There is also a proverb about the cold dew: "After the cold dew for three dynasties, you must find a bridge when you cross the water", which means that the weather is already cold, and you can't wade barefoot across the river or go down to the field as before.

Cold dew

Cold dew is the seventeenth of the 24 solar terms and the fifth solar term of autumn. Dou Zhi Xin; The Sun reaches the ecliptic longitude 195°; It is held from October 7 to 9 in the Gregorian calendar every year. The cold dew is the season of late autumn and the beginning of the month of the Ganzhi calendar.

Cold dew is a solar term that reflects the characteristics of climate change. Entering the cold dew, there is cold air from time to time to the south, the temperature difference between day and night is large, and the autumn dryness is obvious.

After the cold dew, the cold air in the north has a certain force, and most parts of China are under the control of cold and high pressure, and the rainy season is over. Controlled by cold and high pressure, the days are warm and the nights are cool, and the days are often high and cool. From the perspective of climatic characteristics, in the cold and dew season, the autumn in the south is getting stronger, the air is cool and the wind is cool, and the rain is less and dry; Vast areas of the north are already showing winter scenes.

The above content reference:Encyclopedia - Cold Dew

1. What is the origin of Hanlu?

Every year on October 8 or 9, when the sun reaches 195° of ecliptic longitude, it is cold dew. "The Seventy-two Candidate Explanations of the Lunar Order" says: "On the September Festival, the dew is cold and will condense.

Cold dew means that the temperature is lower than when the white dew is used, and the dew on the ground is colder and is about to condense into frost. In the cold and dew season, the vast areas of Nanling and the north have entered autumn, and the northeast and northwest regions have entered or are about to enter winter. First frost is visible in the capital Beijing at this time of year for most years, and snow has generally begun to fall in northeast China and northern Xinjiang, except for the Qinghai-Tibet Plateau, which snows all year round.

In ancient China, the cold dew was divided into three phases: "one is the guest of the wild goose; Second, the finch enters the water as a clam; Sanhou chrysanthemum has yellow flowers. "In this solar term, the wild geese line up in a line or herringbone and move south; In the late autumn, when the birds were gone, the ancients saw that many clams suddenly appeared on the seashore, and the stripes and colors of the shells were very similar to those of the birds, so they thought that the birds had become; The third "chrysanthemum yellow flower" means that the chrysanthemum has generally bloomed at this time.

2. What are the customs of the cold dew solar term?

After the white dew, the weather becomes cooler, and dew begins to appear, and when the cold dew arrives, the dew increases, and the temperature is lower. At this time, there will be frost in some areas of our country, the north has been a late autumn scene, white clouds and red leaves, occasionally early frost, the south is also autumn is getting stronger, and the cicadas are silent. Beijing people climb the custom is more prosperous, Jingshan Park, Badachu, Xiangshan and so on are all good places to climb, heavy nine climbing festival, more birds will attract many tourists.

In ancient times, dew was used as a sign that the weather was getting cooler and colder. The mid-autumn white dew solar term is "dew condensed and white", and when the autumn cold dew is already "the dew is cold, it will condense into frost".

At this time, the temperature continued to drop in most parts of southern China. The average daily temperature in southern China is less than 20, and even in the coastal areas of the Yangtze River, it is difficult for the mercury column to rise above 30 with the New Year's front, while the minimum temperature can drop below 10. Except for a few lowlands in the valleys, the average temperature in the Northwest Plateau is generally below 10 for 5 days.

Thousands of miles of frost shop, thousands of miles of snow drifting, and the autumn colors of South China are very different.