Introduction to climate change during the Great Cold solar term, what does Great Cold mean?

Introduction to climate change during the Great Cold solar term, what does Great Cold mean?
The climate during different solar terms and festivals is also different. So, let’s take a look at the climate changes during the Dahan solar term. What does Dahan mean? The twelfth month is the end of the year, during the cold winter. The twelfth lunar month is coming soon. If you want to know more details, please visit Mr. Shui Mo's website.

Introduction to climate change during the Great Cold solar term

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.
Like Lesser Cold, Greater Cold is also a solar term that indicates the degree of coldness of the weather.
According to my country's annual climate data statistics, the coldest period of the year in northern my country is mid-January of the Gregorian calendar (10th to 20th). The Minor Cold solar term starts from January 5 to 7 each year. One solar term lasts for about 15 days, and the middle of the month falls within the Minor Cold solar term.
Therefore, for most areas in the north, Minor Cold is indeed colder than Major Cold.
But for most areas in the south, the coldest time is during the Great Cold solar term; the Great Cold solar term in the south generally starts on January 20, and late January is the coldest time of the year in the south.

What does Great Cold mean?

Dahan is the last solar term among the 24 solar terms. The Dipper points to Chou; the sun's ecliptic longitude reaches 300°; the solar term falls on January 20-21 of the Gregorian calendar every year.
Dahan, like Xiaohan, is also a solar term that indicates the degree of coldness of the weather. Dahan means that the weather is extremely cold.
According to my country's long-term meteorological records, there is no less severe cold during the Great Cold solar term in the northern region; but for most areas in the south, the coldest period is during the Great Cold solar term.

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