In midsummer, the climate between the north and the south is different, and the crisp autumn is more suitable to describe it?

Mainly due to the flat terrain in most parts of the north, and the influence of Siberian cold current, the northwest wind blows in the north, which makes the clear sky in Wan Li unobstructed. After a long time of air exchange, the air is quite refreshing, thus forming a crisp autumn weather.

Summer climate characteristics

1, temperature drop?

It is not enough to describe the summer solar terms from the end of August to the beginning of September 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; Second, the subtropical high moved southward by leaps and bounds, and the Mongolian cold high began to itch to try, punching and kicking, showing its edge.

2. South "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 areas under its control, people who feel a trace of autumn coolness often feel hot weather again in late summer. Is this a veritable "autumn tiger"? .

For areas that are out of the dog days and have severe summer drought, if they continue to be controlled by subtropical high, it is often easy to form drought in summer and autumn, which greatly advances the fire prevention period in autumn and needs vigilance. In the middle and lower reaches of the Yangtze River, it is often after the autumn tiger weather, but it will be after 10.