What does an autumn rain and a cold mean?

? "An autumn rain and a cold" is a proverb in northern China. This proverb means that autumn in the north is accompanied by a cold current, and there is often a rain process. As an autumn rain passed, the weather gradually became cold.

1. Various expressions of "an autumn rain and a cold"? There are many ways to express "an autumn rain and a cold", but the meaning is the same, which means that the temperature in the northern region gradually decreases with the autumn wind blowing and the autumn rain falling.

? "An autumn rain and a cold" is also called "an autumn rain and a cold". Here, "cool" and "cold" are synonyms in different degrees, that is, "cool" refers to the feeling of early autumn. With the autumn rain, the temperature will become "cold" with the accumulation of "cold".

? There is also a paired expression, such as "a layer of spring rain is warm, and a layer of autumn rain is cold", compared with "autumn rain". Another example is: one layer of autumn rain is cool, ten layers of autumn rain is a layer of cotton; One layer of autumn rain is cool, and the tenth layer of autumn rain should wear cotton; One autumn rain and one cold, ten autumn rains put on cotton. These expressions mean the same thing. It means that after a series of autumn rains, it is about to enter winter, and it is time to wear cotton-padded clothes.

Second, the climate characteristics of "an autumn rain and a cold"? "One autumn rain and one cold" is a vivid expression of the people and a scientific summary of their long-term practical experience, which is in line with the law of climate change.

? After beginning of autumn, the weather gradually cooled down, and then it became "cold".

? This is related to the running law of the sun. After the summer solstice, the sun has begun to move south. After a slight summer, a great summer, and then into the early autumn, nearly two months have passed. At this time, the sun is getting farther and farther away from us, so the exposure time of the sun to us is shortened. It is precisely because the sunlight shining on us is decreasing day by day, and the solar heat is decreasing day by day, so the heat lost on the surface here is gradually increasing, leading to a gradual decline in temperature.

? In this case, the cold air in the north of China will take the opportunity to enter after accumulation. From Siberia and Mongolia, cold air enters most parts of China and meets with the falling warm and humid airflow, forming rainfall. In this way, whenever it rains, the warm and humid airflow will weaken and slowly recede to the south.

? That's it. When cold air goes south again and again, it will form a series of rainfall and autumn wind, and the temperature will be lower every time.

Third, the practical significance of "an autumn rain and a cold"? "One autumn rain and one cold" is a proverb summarized by people according to the climatic characteristics of autumn rain, which contains scientific truth and has important guiding significance for people's daily life.

? The meaning of this proverb is that whenever autumn rain comes, we should add clothes in time to meet the needs of cold climate.

? Finally, the article ends with the literary description of the famous writer Yu Dafu. When Yu Dafu summed up the characteristics of autumn in Beijing in his essay "Autumn in the Old Capital", he used an old Beijinger's saying that "autumn rain is cool". Its meaning should be no different from "an autumn rain and a cold". Of course, Yu Dafu also said that "northerners always read array characters like layers of characters", so the correct spelling should be: a burst of autumn rain and a burst of cold!