20 15 What is the solar term on March 6th in Gregorian calendar?
The root of fear
Like other solar terms, the date of fright is not necessarily related to the lunar calendar. Every year from March 4th to 7th, when the sun reaches 345 degrees, it is a "fright". Sting means that when the weather gets warmer, the spring thunder begins to sound, awakening the insects that are dormant and hibernating underground.
Thorns and thunder are the most striking. For example, "it thundered before the earthquake, and the clouds could not open for forty-nine days." The solar term of fright is in the middle of cold and warm weather. According to the cold and warm weather, there are proverbs to predict the weather in the later period: "Cold fright, warm spring equinox" and so on. The wind with prickly knots is also used as a basis for predicting the weather in the later period. For example, "if you are afraid of the north wind, you will spend the winter from the beginning" and "if you are afraid of the south wind, you will plant seedlings later".
Modern meteorological science shows that the occasional thunder before and after the "wake-up" is due to the increase of earth humidity, which leads to the rise of hot air near the surface or the strong and frequent northward movement of hot and humid air.
What is the meaning and significance of "horror"
"Sting" is the period when the weather turns warmer and the spring thunder begins to ring after "beginning of spring", which awakens all kinds of insects that are dormant and hibernating in the soil. At this time, the eggs in winter will also start to hatch, which shows that "scare" is a solar term reflecting natural phenology. However, what really wakes up hibernating animals is not the rumbling thunder, but the underground temperature when the temperature rises to a certain extent. There's a proverb that says, "When it thunders, it's warm and harmonious, and the old toad sings folk songs", and "When it thunders, it shocks Gu Mi, and it shocks Remy to mud". This means that it is normal to hear thunder on the day of the earthquake or after it, and it is a good year with good weather.
What are the characteristics of this solar term?
After the "shocking" solar term, the warm and humid air mass in the south became active, and the temperature rose obviously. The average annual solar term temperature in Huaibei area is 6 ~ 7℃, and it is 7 ~ 8℃ in the south of Huaihe River, which is more than 3℃ higher than the "fright" solar term. In this solar term, the temperature in Huanghuai area rises steadily to above 5℃ from south to north, while the temperature rises steadily to 5℃, which is an important meteorological boundary temperature for agricultural production. It indicates that trees begin to sprout, spring begins to grow, and spring crops begin to sow. The annual average solar term rainfall in Huaibei area15 ~ 20mm, 20 ~ 40mm south of Huaihe River.