What is the difference between Greater Heat and Lesser Heat? What is the origin of the Great Heat solar term?

What is the difference between Greater Heat and Lesser Heat? What is the origin of the Great Heat solar term?
The Great Heat solar term falls around the middle of the three hottest days of the year, which is the hottest period of the year with the highest temperature and the fastest growth of crops. What is the difference between Greater Heat and Lesser Heat? What is the origin of the Great Heat solar term? The sixth month of the lunar calendar is the season when lotus flowers begin to bloom, and lotus flowers are the messenger of June. If you want to know about the sixth lunar month of 2018, please consult the fortune teller website. Lesser Heat is the eleventh solar term of the twenty-four solar terms in the lunar calendar and the fifth solar term in summer, marking the official start of the midsummer season. The Lesser Heat solar term begins when the sun reaches 105 degrees of the ecliptic longitude. "Shu" means hot, and "Xiaoshu" means a little hot, not very hot. It means that the weather is starting to get hot, but it has not yet reached its hottest point, and this basically applies to most parts of the country. Crops across the country have entered a stage of vigorous growth and field management needs to be strengthened.
Great Heat is one of the 24 solar terms in the lunar calendar, when the sun is at 120° of the ecliptic longitude. During the Great Heat period, the Han people have the customs of drinking Fu tea, drying Fu ginger, and burning Fu incense. "Collected Explanations of the 72 Seasonal Changes" says: "The Great Heat is in the middle of June. Heat is hot and can be divided into small and large heat. The beginning of the month is small, the middle of the month is big, and the heat is still big now." Its climatic characteristics are: "When the Big Dipper points to Bing, it is the Great Heat. At this time, the weather is much hotter than the Lesser Heat, so it is named the Great Heat." The Great Heat solar term is around the middle of the "Three Hot Days", the hottest period of the year, with the highest temperature and the fastest growth of crops. At the same time, various meteorological disasters such as drought, flood and wind disasters are also most frequent in many areas.

What is the origin of the Great Heat solar term?

Great Heat is one of the 24 solar terms. Around July 22nd to 24th every year, the sun reaches 120 degrees of ecliptic longitude. The Great Heat solar term belongs to the middle period of the dog days of summer, which is the hottest period of the year. I believe everyone knows that “the hottest time of the year is during the dog days”. During the Great Heat season, most parts of my country are in the hottest period of the year, and the temperature difference across the country is not large.

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