Millennium solar terms knowledge Millennium solar terms introduction.

1, Bailu is one of the 24 solar terms, and it is the Bailu solar term when the sun reaches 165. Millennium is the fifteenth solar term among the twenty-four solar terms and the third solar term in autumn, marking the end of Qiu Meng season and the beginning of Mid-Autumn Festival. "White Dew" is an important festival reflecting the temperature change in nature. The Millennium solar terms basically ended the sultry summer, which was the turning point from hot to cold in autumn. In the Millennium, the autumn wind cools down and dries the moisture in the air. This dry climate feature is called "autumn dryness", and the climate feature of the Millennium is dryness.

2. In the first two solar terms in autumn, beginning of autumn and the summer heat are still very hot, because the heat brought by the sun has not diminished. The so-called "heat is in dog days", which appears between midsummer and hot summer, and it is the highest temperature and muggy day of the year. The reason for the high humidity in dog days is that the southeast wind blows in dog days, and the southeast direction is the Pacific Ocean and the Indian Ocean, so the air is humid, and the humidity of the wind causes the high humidity in dog days. After late autumn, the opposite is true. The northwest wind blows and the northwest inland is dry. The dry northwest wind leads to a dry climate after late autumn. After entering the Millennium solar terms, the summer monsoon is gradually replaced by the winter monsoon, and the cold air goes south in batches, which often brings a certain range of cooling. The folk proverb "Autumn night in the white dew, a cool night" describes the situation that the temperature drops rapidly.

The first two solar terms in autumn are sultry. Autumn is generally cool, until after the Millennium solar terms, it gradually tends to be cool and dry since the Millennium solar terms. In late autumn, the climate turns from hot to cold, and everything comes into being with cold and gradually falls. This is the season of alternating hot and cold. The most obvious change in autumn is that the leaves of vegetation change from lush green to yellow, and the leaves begin to fall and the crops begin to mature.

4. Weather

After the Millennium solar terms, the autumn wind cools down and dries the moisture in the air. This dry climate is called "autumn dryness" in traditional Chinese medicine, and many people will have symptoms such as dry mouth, dry throat, dry eyes and dry skin. The Millennium climate is characterized by dryness. Millennium dew is a natural phenomenon. At this time of the solar term, the sun is still hot during the day and the water vapor evaporates. As soon as the sun returns to the mountains, the temperature drops rapidly. At night, the water vapor in the air condenses into tiny water droplets, which are very densely attached to green stems and leaves or petals of flowers and trees. Even if the Millennium really gets cold, "the Millennium basically ended the sultry summer." Entering the "White Dew", the temperature difference between day and night is large, and you will feel a little cold at night, obviously feeling that the cool autumn has arrived.

5. Weather

Around the Millennium, the residual heat of summer gradually disappeared, the sky and the earth rose and spread, the weather gradually turned cold, and the dew in the morning became thicker and thicker, condensing into a layer of white water droplets on the surface of grass leaves, which is also one of the names of the Millennium. The plants began to dew. After entering the Millennium solar terms, the summer monsoon is gradually replaced by the winter monsoon, the cold air turns to attack, and the warm air gradually retreats. Cold air going south in batches will often bring a certain range of cooling. People like to use the proverb "it's cold in the autumn night in the white dew" to describe the situation that the temperature drops rapidly.