Lead
The beginning of autumn is coming, the ancients used the handle of the Big Dipper to point to the way to judge the seasonal changes and future weather conditions, of which the beginning of autumn refers to the position of the handle of the Big Dipper is "southwest".
On the basis of this, the ancients summed up a lot of "agricultural proverbs" to predict the cold and warm of the future winter, most of which were based on the temperature and climate of the beginning of autumn.
And this year's beginning of autumn is the "late beginning of autumn", you can pay attention to the direction of the wind on the day, the climate after the winter solstice is likely to be the wind direction of the beginning of autumn, which means how cold the winter is, how cold the "cold" in the ancient mouth.
Autumn.
The beginning of autumn is the 13th of the 24 solar terms, and 10 days after the end of the "Xiaoxia" solar term, when the sun reaches 15 degrees of ecliptic longitude, the "lowest temperature" may occur at the North Pole.
Although it has passed the hottest time, the beginning of autumn does not mean that the temperature will immediately turn cooler, and some places will usher in the weather like "autumn tigers".
The original meaning of the beginning of autumn is "the beginning of autumn", which indicates that the season has entered autumn, but in fact it is useless.
Because there are still 20 days from the beginning of the "beginning of autumn" before the beginning of the beginning of autumn, "the beginning of autumn" itself does not represent the meaning of "autumn", but a kind of solar term name, so what are the special signs of the beginning of autumn?
On the day of the beginning of autumn, the air is cool, and many plants will decisively drop all their leaves to the ground in order not to consume too many natural resources and die in the following long winter.
After the beginning of autumn, the sycamore tree begins to lose its leaves, the sycamore tree is a very spiritual tree species since ancient times, and the sign of falling leaves on this day is likely to rain, so in the Song Dynasty there is a ritual of "sycamore autumn".
On this day, the leaves from the plane tree are plucked and placed in a small pot facing east, waiting for the first rays of sunlight from the east to come out, and then the leaves are burned to show that the revered sun god dispels the yin energy, thus ensuring that autumn can come smoothly.
The ancients summed up agricultural proverbs to interpret the weather after the beginning of autumn, such as "the south wind will be dry in the beginning of autumn", "the northwest wind in the beginning of autumn, and the fierce after autumn", etc., these agricultural proverbs have their truth, but not everyone knows them.
The beginning of autumn has an indication: how "cold" the beginning of autumn is.
After the beginning of autumn, the air gradually has the smell of autumn, in addition to adding clothes to prevent autumn coolness, we should also pay attention to the wind direction on the day of the beginning of autumn, because it is likely to become the wind direction after the winter solstice.
There is a sentence in the "agricultural proverb" that "the south wind will be dry in autumn, and it will not be too cold in winter", according to the current folk weather prediction method, this means that the wind direction in winter will be towards the north, and the winter in the north will naturally be very cold, so this is not contrary to this agricultural proverb?
It is possible that the wind direction of the mainland in ancient times was blowing in other directions, so this "agricultural proverb" was established, an interesting point of view.
There is another agricultural proverb that is, "The beginning of the autumn thunderstorm, after a hundred days of sunshine; The proverb "the beginning of autumn is cloudy, and the next hundred days are sunny" is not wrong in general, but it is not all true.
Because even if it rains, the sun will appear immediately in the place where the rain has passed, and there is no such strict "100 days of sunshine", but it can be said that there are mostly sunny days after the beginning of autumn, and the "beginning of autumn cloudy" is all unblocked sun, so in general, this proverb can be believed.
However, there are also many versions of the "beginning of autumn" in this proverb, some of which refer to the point of time, and after a long time, it will become "the beginning of autumn", and there is also an explanation that it is calculated according to the solar terms, which becomes the "beginning of autumn".
Therefore, the expression of this proverb is also different, and the accent may be different in each place, so there are various names.
How cold it is in winter.
So what people are most concerned about is how cold it will be in winter, a sentence "the beginning of autumn south wind, winter will not be too cold", sure enough, someone has done research in this area, it really makes sense.
In the summer on the mainland, the wind direction is indeed blowing to the south, which means that the hot weather is "blended" by those places in the north.
Therefore, after the beginning of autumn, the north will begin to blow out, so it is "not too cold in winter", of course, there is also a sentence "the northwest wind in the beginning of autumn, and the autumn is fierce", refuting the "agricultural proverb" that refers to "winter will not be cold", who said it is true, so it seems that winter is still relatively cold.
In modern times, due to the development of meteorological science, it is already possible to predict the weather in the next seven days, after the beginning of autumn, autumn officially begins, then the time to enter the winter is not far away, so we must arrange their own heat source problem in advance, otherwise it will be cold and can not find warmth.
epilogue
In ancient times, people summarized their daily observations of the weather, and they were used in daily life, and the same is true now.
Although the mainland's modern meteorological forecasting work has made very good progress and brought great convenience to people's production and life, we have reason to believe that agricultural proverbs will continue to play an irreplaceable role in our lives.
It will be passed on to the people of the mainland for a long time, not only adding an interesting scenery to our lives, but also continuing to contribute its "wisdom" to the meteorological work of the mainland in continuous verification.