1, astronomical significance
Being in the summer is one of the 24 solar terms in the ancient Chinese calendar in China, and it is also one of the important astronomical observation moments in the traditional culture of China. Summer is when the sun reaches150, when the position where the sun directly hits the earth is just 23.5 degrees south of the equator in the northern hemisphere. This moment marks the end of summer and the beginning of autumn.
2. Climate significance
Summer is the last solar term in summer, when the temperature gradually drops and the weather turns cold, indicating that autumn is coming. At this time, it is the harvest season, the crops are ripe, and people are busy harvesting, storing and processing. At the same time, due to the gradual decline in temperature, people's bodies have gradually adapted to climate change and started to enter a new season.
3. Cultural significance
In the traditional culture of China, the summer vacation has profound cultural connotations. For example, in folk customs, people will worship their ancestors, pray for a bumper harvest and pray for peace. At the same time, the summer is also the previous solar term of the Mid-Autumn Festival on the 15th day of the eighth lunar month. At this time, people will begin to prepare for the Mid-Autumn Festival celebrations, such as making moon cakes and enjoying the moon.
There is also a special meaning of "being in summer", which means that the hot summer is about to pass and people can welcome the refreshing and cool autumn.
4. What is summer heat?
Summer is the fourteenth solar term of the twenty-four solar terms and the second solar term in autumn. Douzhiwu (southwest); Sun meridian150; On August 22-24 of the Gregorian calendar every year. It's summer, and it's the "last summer" of the "three summers" of high temperature and hot weather, which means that the hot and difficult weather is coming to an end.
After the summer heat, the direct point of the sun continued to move southward, the solar radiation weakened, the subtropical high retreated southward, and the summer heat gradually disappeared. Thunderstorm activity is not as active as that in summer, and the general trend of heavy rain in all parts of the country is weakened. There are many folk activities in the summer, such as eating ducks, setting off river lanterns, opening fishing festivals, decocting medicinal tea, and worshiping the land.