Introduction of summer solar terms

1, summer, which means to leave in hot weather. At this time, the dog days have passed or will soon end, and the summer heat in early autumn will also end. The bucket handle of the Big Dipper points southwest (position E). When the sun reaches the longitude 150, it is the summer heat in 24 solar terms. Summer is a solar term reflecting climate change. Due to the short-term regenerative weather of "autumn tiger", there is still continuous high temperature after the heat. Although it is not as hot as summer, it will still be muggy and dry. The arrival of the hot summer also means entering the second half of the dry calendar.

2. In summer, the direct point of the sun has moved from 23 26' north latitude to1128' north latitude. In the downtown area of Beijing, the height of the sun dropped from 73 32' in summer to 665 438+0 34' at noon, and people could clearly feel that the sun began to turn south. As the height of the sun decreases, the heat it brings will also decrease. The hot summer has passed, but there will still be short-term reheating weather during this period, but it has not really entered the cool weather. The real coolness is usually after the Millennium.