Meteorology Classroom: Which comes first, beginning of autumn or Qiu Hu?

Autumn has begun.

On August 7th or 8th every year, beginning of autumn is considered as the time when the sun reach

Meteorology Classroom: Which comes first, beginning of autumn or Qiu Hu?

Autumn has begun.

On August 7th or 8th every year, beginning of autumn is considered as the time when the sun reaches 135. The ancients did not have a solar calendar, but only followed the lunar calendar. Generally speaking, beginning of autumn is at the turn of June and July in the lunar calendar, so beginning of autumn is earlier in June and later in July.

Beginning of autumn is the13rd solar term among the 24 solar terms in the lunar calendar, and it is also the first solar term in autumn, which marks the official start of the Meng and autumn seasons: "Autumn" means that summer is cool. When we arrived in beginning of autumn, the phoenix tree began to shed its leaves, so there is an idiom "Autumn is known by falling leaves". Literally, the word "autumn" consists of "valley" and "fire", indicating the maturity of five grains. Autumn is the transitional season when the weather turns from hot to cold, and then from cold to cold.

Beginning of autumn, July Festival. Make a word to understand spring. In autumn, things are different here.

When the cool breeze came to The Book of Rites, it was a blind wind. The bleak wind in the west is called cool wind. The temperature changed and the chill began to subside. "Zhou Yu" said that it is also true that the eyes are golden and the breeze is cold.

Wait, the Millennium falls. After the heavy rain, the cool wind came and the weather dropped. Those white beads have not yet condensed, so the white dew drips, showing the white of autumn gold.

Third class, chilling. Chilling, "Erya" said chilling, small and green; Ma Shi said that things were born in the heat and their voices changed.

In the Song Dynasty, the plane tree planted in the pot had to move into the temple. It's time to "beginning of autumn", and the master shouted, "Autumn is here." After the play, the phoenix tree dropped one or two leaves to express autumn.

Autumn tiger appearance time:

Autumn Tiger in China refers to the short-term hot weather after beginning of autumn. It usually happens at the turn of August and September and lasts about 7- 15 days. Meteorology means that the highest temperature is above 35℃ for five consecutive days after the summer solar term. The reason for this kind of weather is that the subtropical high retreating to the south has once again controlled the Jianghuai and its nearby areas, resulting in fine weather, strong solar radiation and the reappearance of hot summer weather, which makes people feel sultry and uncomfortable, so it is called "autumn tiger".

The reason for the formation of autumn tiger is that the western Pacific subtropical high that controls China gradually moves southward in autumn, but moves northward. Under the control of this high pressure, it turned cloudy and sunny locally, with strong solar radiation and rising temperature. This regenerative weather is called "old woman summer" weather in Europe and "Indian summer" weather in North America. Beginning of autumn just now. "Autumn" includes beginning of autumn, Chushu, Bailu, Autumnal Equinox, Cold Dew and First Frost. After autumn, the rain is decreasing day by day, and the air humidity is lower than the limit needed by people's life (the relative humidity is 70%), so the weather is dry, the vegetation withers and people feel dry.

Therefore, we can know that the autumn tiger is behind beginning of autumn.