What does the first frost mean?

What does the first frost mean? The first frost is the eighteenth of the twenty-four solar terms and the last solar term in autumn. Many people know that after the first frost, the weather will get colder and colder. I have compiled the information about the meaning of the first frost for you.

What does the first frost mean? 1 The first frost is the18th solar term among the 24 solar terms and the last solar term in autumn, which marks the transition from autumn to winter. As the saying goes, "the first frost kills a hundred herbs." After the first frost, the plants gradually lost their vitality and the land was desolate.

Every year around 10 year 10.23, when the sun reaches the longitude of 2 10 degrees, it is the first frost solar term. The main feature of the first frost is that "qi stagnates at the beginning of frost, and yin begins to coagulate".

In ancient times, the first frost was divided into three stages: one stage was when jackals sacrificed animals; Second, the vegetation is yellow; Three stings are salty. This means that after the first frost, jackals and other animals began to store food for winter; The vegetation is yellow and the leaves are falling; The hibernating mantis lowered its head and prepared to spend the winter in the cave.

First, eat frozen persimmons in the first frost to keep warm and keep out the cold

The custom of eating red persimmons in the first frost season is popular in many places. It is believed that this can not only keep out the cold and keep warm, but also strengthen the bones and muscles. The explanation in some places is that eating shuttlecock on the first frost day can prevent his lips from cracking in winter. In some places, there is even a saying that eating frozen persimmons in the first frost will not cause runny nose.

Second, it snows and frosts in the mountains.

When it snows, the depressions on the mountain double. The meaning of this sentence is that it is easy to snow in the mountains and frost in the depressions.

This needs to start with the formation of frost: frost is formed by condensation of water vapor in the air close to the ground and directly formed on objects close to the ground; The lower the temperature, the greater the air density and the greater the specific gravity. With the flow of air, the coldest and heaviest air will flow to the lowest place, and it will gradually accumulate and condense into frost after reaching the lowest place (depression), so the depression is more prone to frost than ordinary places, and plants in the depression are particularly vulnerable to frost.

Third, there were frosts and sunny days, and there were frosts and sunny days in the Three Dynasties.

The sentence "Once there is frost, it will be sunny for a long time" means: one morning there is frost, and the weather is sunny for a short time; And if there is frost in three mornings, the sunny days will last longer.

"Once there is frost, it will clear up soon", indicating that the cold air force is not very strong, the temperature is not very low, and it is easy to remove, so it can only form a day's frost. After the cold air (weak high pressure) was removed, the local area was controlled by low pressure, and the weather turned bad.

On the contrary, if there is frost for several nights in a row, it means that the cold and high pressure is strong, wide, slow and stable, usually lasting for several days or even a week. That's what "there have been frosty days and sunny days in three dynasties" means.

What does the first frost mean? 2 The first frost occurs when the sun reaches the longitude of 2 10 every year around Gregorian calendar 10 year10. The first frost said that the weather was colder and the dew condensed into frost. "Twenty-four solar terms": "In mid-September, the essence is cold and condensed, and dew cream". At this time, frost has appeared in the Yellow River Basin of China, and a silver ice crystal shines in the fields thousands of miles away. At this time, the leaves turned yellow and fell. The ancient book "Twenty-four solar terms" says: "When the frost comes, the yin begins to coagulate."

It can be seen that "first frost" means that the weather is getting colder and it begins to frost. Meteorologically, the first frost in autumn is generally called "first frost" or "first frost", and the last frost in spring is called "late frost" or "final frost". The interval from the last frost to the first frost is a frost-free period. Some people also call the first frost "Chrysanthemum Frost", because chrysanthemums are in full bloom at this time, and Su Shi, a great writer in the Northern Song Dynasty, said in a poem: "All trees are sweeping away pornography, and only Furong is alone."

What is the meaning of the first frost? 3 The first frost, the18th solar term among the 24 solar terms, is the last solar term in autumn, marking the transition from autumn to winter. As the saying goes, "the first frost kills a hundred herbs." After the first frost, the plants gradually lost their vitality and the land was desolate.

After the first frost, jackals and other animals began to store food for winter; The vegetation is yellow and the leaves are falling; The hibernating mantis lowered its head and prepared to spend the winter in the cave.

To sum up, it is early in the north, late in the south, early in the west and late in the east. The first frost appeared in the northeast plain in late September, and the first frost appeared in early September or late August in some years; The first frost appeared in North China Plain in June+10/October, 5438. The first frost appeared in the Yellow River basin around the first frost. /kloc-from mid-October to early February, the first frost appeared in Jianghuai and Jiangnan areas. There is little frost south of Nanling. The places with the most frost days in China are Zenduo County in the east of Yushu Tibetan Autonomous Prefecture in Qinghai Province and Qingshuihe River in the south of Wulanchabu League in Inner Mongolia Autonomous Region, with an average annual frost days of 245.6 days.