The temperature difference between the Millennium and the morning and evening has increased

The reasons for the increase in temperature difference between the Millennium and the morning and evening are as follows:

Meteorological changes in the Millennium:

The Millennium is the solar term with the largest temperature difference between day and night throughout the year. At this time, the sunshine in the northern hemisphere becomes shorter, the direct point of the sun moves south, and the ground temperature drops; The warm air gradually weakened, the cold air activity was frequent, the autumn wind came unexpectedly, and it cooled down overnight.

Although the temperature still reaches 30 degrees during the day, it drops to 20 degrees at night, and the temperature difference between them reaches more than 10 degrees. In China, the farther north, the greater the temperature difference, and even the northwest and northeast can reach 18 ~ 20℃.

Millennium phenomenon:

During the Millennium solar term, the summer heat gradually disappears, the autumn air is crisp, the osmanthus fragrance is fragrant, migratory birds such as Hongyan and Swallow begin to fly south to avoid the cold, and various birds begin to store food for the winter. "Hongyan comes, Xuanniao returns." After the Millennium, migratory birds that are most sensitive to climate migrate collectively. Hongyan began to fly from the north to the south, and mysterious birds from the south also flew back to the north, and various birds began to store food for winter.

There is a saying in the folk proverb: "The white dew flies in the south in the autumn night", "When beginning of autumn knows it, it makes people sleep, and the sunflower laughs in summer, and the white dew returns to the wild goose, and the osmanthus fragrance fills the garden in the autumn equinox".

The custom of Millennium Festival:

1, clear dew:

China folks have the custom of "picking clean dew" in the Millennium solar terms. In Li Shizhen's Compendium of Materia Medica in the Ming Dynasty, it was recorded: "When the autumn dew is numerous, it is gathered on a plate and fried like rice, which makes people not hungry for many years."

"The autumn dew on the head of a hundred herbs is collected when it is not embarrassing. The more sick you are, the thirst will be quenched, and people will be light and hungry. " The flower is exposed, which is a good color. Thus, dew-clearing has become the most special "ceremony" in the Millennium.

2, Bailu tea:

Bailu tea is tea picked in Bailu season. There is a folk saying that "spring tea is bitter, summer tea is astringent, tea is needed, and autumn dew". At this time, after the summer heat, the tea tree is just another growth period before and after the Millennium. Bailu tea is neither as fresh and tender as spring tea nor as dry and bitter as summer tea. It has a little too much flavor, giving people just the right feeling. Take a sip gently, and your lips and teeth will remain fragrant and full of sweetness, which is deeply loved by old tea customers.