What is the solar term?

Sad cold dew zero refers to the cold dew solar terms.

The poem "Cool breeze moves, cold dew is zero" can almost be regarded as an autumn picture, which makes people feel the scene of cold dew season. First of all, "cool breeze" describes a feeling of breeze, which is a common phenomenon in the cold dew season. Although the sun shines brightly during the day, the temperature begins to drop and the breeze blows, giving people a fresh and pleasant feeling.

However, Cold Dew Zero shows the characteristics of cold dew. Cold dew is the ninth solar term in autumn, which generally appears around the middle of September in the lunar calendar. At this time, the weather is obviously cool, and there may be a thin layer of dew on the grass in the morning, hence the name cold dew. This also means that the coolness of autumn is gradually increasing, which indicates that winter is coming.

Meteorological changes of cold dew;

Cold dew is a solar term reflecting the characteristics of climate change. After the cold dew solar terms, the days become shorter, the nights become longer, the sunshine decreases, the hot air slowly recedes, the cold gradually increases, the temperature difference between day and night is larger, and it feels a little chilly in the morning and evening. After the cold dew, the cold air in the north has a certain influence, and most parts of China are controlled by cold high pressure, and the rainy season is over.

Wan Li is clear, warm during the day and cool at night. Thunderstorms have disappeared in most parts of Chinese mainland. From the climate characteristics, in the cold dew season, the autumn in the south is getting stronger, cool and cool, with little rain and dryness; The northeast and northwest regions in the north show a scene of winter, with thousands of miles of frost and snow in Wan Li, which is quite different from the autumn colors in the south.