Represents the official start of the last month of summer. In summer, the solar term refers to Xin, the sun reaches the longitude of the Yellow River 105 degrees, and the solar term is on July 06-08 of the Gregorian calendar. Summer heat, which means hot, is a little hot, not very hot. It's getting hotter, but it's not the hottest. The average temperature in southern China is around 26℃ in summer, which is already midsummer. All localities have also entered the season with the most thunderstorms, often accompanied by strong winds and heavy rains.
2. Hot summer
July 22-24 of Gregorian calendar. Summer is the hottest solar term in a year, and "damp-heat steaming" reaches its peak at this time. High temperature weather of 40 degrees Celsius often occurs in many areas of our country. During this period, the temperature is the highest and crops grow the fastest. At the same time, various meteorological disasters such as drought, waterlogging and wind disasters are also the most frequent in many areas.
3. beginning of autumn
It marks the official start of the Meng and Qiu seasons: "Autumn" means that the summer heat will cool off. In early autumn, Beidou points southwest. From this day on, autumn began, the autumn was crisp, the moon was bright and the wind was clear. Since then, the temperature has gradually decreased from the hottest time.
4. Summer heat
Place means to stop and hide, and summer means to end the hot summer. At this point, the dog days have passed or come to an end. It's hot during the day and cool in the morning and evening. The temperature difference between day and night is large, and autumn rain comes from time to time. The summer solar term refers to entering the autumn with meteorological significance.
Summer and solar terms coincide with the harvest season of crops. In ancient times, people held various ceremonies to worship their ancestors and thank the land gods. After summer, autumn is getting stronger, which is also a good time for people to welcome autumn and enjoy the scenery.
The role of twenty-four solar terms in expanding information
"Twenty-four solar terms" reflect the influence of the sun on the earth and belong to the solar calendar category. It is a knowledge system formed by observing the movement of the sun in a year and understanding the changing laws of the four seasons, climate and phenology in a year.
It not only plays a guiding role in agricultural production, but also affects the food, clothing, housing and transportation of ancient people, and even cultural concepts. The current lunar calendar absorbs the solar terms of the trunk calendar as a supplement to the calendar, and is adjusted to conform to the tropic year through the leap method, forming a combined calendar of yin and yang.
Twenty-four solar terms are not only the time criterion promulgated by successive governments, but also the compass to guide agricultural production and to predict cold, warm, snow and rainy days in people's daily life. In the field of international meteorology, the 24 solar terms are known as "the fifth invention of China".
2016165438+1October 30th, 24 solar terms was officially listed in UNESCO? List of representative works of human intangible cultural heritage. 2065438+July 2009, the "China Weather 24 Solar Terms Research Institute" jointly sponsored by Huafeng Meteorological Media Group of China Meteorological Bureau and Meteorological Publicity Science Center of China Meteorological Bureau was formally established.
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