The names and characteristics of the solar terms between the beginning of autumn and the frost
The beginning of autumn to the frost fall is the solar term of the whole autumn, including the beginning of autumn, the summer, the white dew, the autumnal equinox, the cold dew, and the frost.
Introduction to the beginning of autumn
The beginning of autumn is the 13th solar term in the twenty-four solar terms, and it is also the first solar term in autumn.The beginning of autumn means that the hot summer is about to pass and autumn is coming.After the beginning of autumn, although the summer heat is hard to disappear, and there is still the prestige of "autumn tiger", the general trend is that the weather is gradually cooler.The ancients of China divided the beginning of autumn into three phases:one is the arrival of the cool breeze; the second is that the white dew is born; the third is that the cold cicadas are singing.It means that after the beginning of autumn, people will feel cool when the wind blows, and the wind at this time is different from the hot wind in summer.Then, there will be fog on the ground in the morning, and the chilling cicadas, which are overcast in autumn, also begin to chirp.
Introduction to the summer heat
The summer heat is the fourteenth of the twenty-four solar terms.Douzhiwu; the ecliptic longitude of the sun is 150°; the festival is on August 22-24 of the Gregorian calendar.Chu means termination and hiding, and Chushu means the end of a hot summer day.At this time, the dog days have passed or are nearing the end, the daytime is hot, the morning and evening are cool, the temperature difference between day and night is large, and autumn rains come from time to time.The end of summer, the solar term, means entering the meteorological autumn.The ancients of China divided the summer season into three phases:“The first phase of the eagle is the sacrifice of birds; the second phase of the heaven and the earth is solemn; the third phase of the He Naideng.” During this solar term, the eagle begins to hunt birds in large numbers; everything between heaven and earth begins to wither; "He" refers to the general term for millet, millet, rice, and sorghum crops, and "deng" means maturity, such as "five grains."
Introduction to Bailu
Bailu is the fifteenth solar term in the twenty-four solar terms and the third solar term in autumn.day, when the sun reaches 165 degrees ecliptic longitude.Bailu is the solar term with the largest temperature difference between day and night.Before and after the white dew, the residual heat of summer gradually disappeared, the yin of heaven and earth rose and spread, the weather gradually turned cooler, and the dew in the morning became thicker and thicker, and condensed into a layer of white water droplets on the grass.It belongs to gold, golden and white, so it is described as "white dew", hence the name "white dew".According to the observation of nature, the ancients of China divided Bailu into three phases:"First, the geese come, the second is the return of the black birds, and the third is the birds to keep their shame." This means that in this solar term, the geese and swallows wait for the birds to fly south to escape the cold., Bainiao began to store dried fruits and grains for winter.
Introduction to the Autumnal Equinox
The Autumnal Equinox is the fourth solar term in autumn and the 16th solar term in the twenty-four solar terms.Every September 23 or 24, when the sun reaches 180 degrees of ecliptic longitude, it is the autumnal equinox.The sun directly hits the earth’s equator, and day and night are equally divided, each 12 hours.The global phenomenon of polar day and polar night.After the autumnal equinox, the direct sunlight point continues to move southward, so the autumnal equinox is also called the descending equinox.Since then, the temperature difference between day and night will gradually increase, the amplitude will be higher than 10 ℃.The ancients of our country divided the autumnal equinox into three phases:first, when the thunder began to be heard; second, when the stinging insects began to dry up; The ancients believed that the thunder sounded because the yang qi was strong, and after the autumn equinox, the yin qi began to flourish, so there was no more thunder.Therefore, the sound of thunder is not only the end of the summer heat, but also the beginning of the autumn cold; as the weather becomes cold, the hibernating insects begin to hide in the cave, and the hole is sealed with fine soil to prevent the cold air from invading; due to the dry weather, the water vapor evaporates So the lakes and rivers have less water, and some marshes and puddles are drying up.
Introduction to Cold Dew
Cold Dew is the seventeenth solar term in the twenty-four solar terms of the lunar calendar, and belongs to the fifth solar term in autumn.On October 8 or 9 every year, when the sun reaches 195° ecliptic longitude, it is cold dew.In the cold dew season, the dew increases and the temperature is lower.At this time, there will be frost in some parts of China.In the north, it is already late autumn, with white clouds and red leaves, and occasionally early frost.The ancients of China divided the cold dew into three stages:the first stage for the guests of the swan geese; the second stage for the birds to enter the water as clams; the third stage for the chrysanthemums to have yellow flowers.This means that in this solar term, geese line up in a single or herringbone-shaped queue to move south; in the cold autumn, the birds are gone.Similar, so it was thought that it was a bird; "Chrysanthemum began to bloom" means that chrysanthemums have generally bloomed at this time.
Introduction to Frostfall
Frostfall, the 18th solar term in the twenty-four solar terms, is regarded as Frostfall from October 22 to 24 of the Gregorian calendar every year when the sun reaches 210 degrees ecliptic longitude.Frostfall is the last solar term in autumn and is the transition from autumn to winter.Frostfall is not a falling frost, but a phenomenon in which the weather is cold and the earth will produce the first frost.The ancients of China divided frost into three stages:first, the jackal was sacrificed to the beast; second, the grass and trees were turning yellow; At this time, animals such as jackals began to capture their prey for the winter; the leaves were all withered and yellowed and fell; the hibernating animals also hid in the hole and did not eat and entered a state of hibernation.
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