When is summer? What does this festival stand for?

The summer vacation of 20 19 is August 23rd, which means "summer vacation", which means to leave in hot weather, and it is meteorological significance to enter autumn.

Characteristics of summer weather:

1, temperature drop

It is not enough to describe the solar terms in summer simply by the beginning of temperature drop. Temperature drop is just one of the phenomena. The reasons behind this phenomenon are as follows: first, the direct point of the sun continues to move southward, and the solar radiation weakens; Secondly, the subtropical high moved southward by leaps and bounds, and the Mongolian cold high began to be eager to try and show good intentions.

2. Autumn is crisp

Under the control of the cold high pressure that began to affect our country, the sinking and dry cold air first announced the end of the rainy season in Northeast China, North China and Northwest China, and took the lead in starting the best weather in a year-crisp autumn. In summer, only the northeast and northwest regions really enter autumn.

3. autumn tiger

Although the subtropical high, which is dominant in summer, strides south, it will never give up its advantage easily and retreat to the sea of the western Pacific easily. In the southern region under its control, people who just feel a little bit cool in autumn often feel hot weather at the end of summer, which is a veritable "autumn tiger".