Traditional Culture Encyclopedia - Weather forecast - Why does it snow on the fifteenth day of the first month?
Why does it snow on the fifteenth day of the first month?
August 15, Yun Zheyue, the fifteenth day of the first month, it snows and lights up.
"It reflects the echo relationship between holiday weather.
Mid-Autumn Festival is a traditional folk festival in China. As the saying goes, the Mid-Autumn Festival is especially bright. On the night of Mid-Autumn Festival, the bright moon is in the sky.
Silver light shines on the earth. The climate here is pleasant,
On a quiet night,
People get together,
Look at the bright moon,
Tell the children the story of the Goddess Chang'e flying to the moon,
The story of osmanthus tree and jade rabbit.
If dark clouds cover the moon on this day,
The sky is gloomy,
Disappointing!
But it means another traditional festival in China, the Lantern Festival.
When every household is decorated with lights,
Snowflakes are flying and exciting.
The echo relationship between the weather of these two traditional festivals has always been concerned by people. Over time,
In many places,
If the night of August 15 is covered with dark clouds,
Snowflakes often appear on the fifteenth day of the first month. So people concluded: "Yun Zheyue on August 15,
On the fifteenth day of the first month, the snow lights up,
Widely circulated.
of course,
The rhythmic activity of the atmosphere is a very complicated problem.
Its reasons, conditions, performance and many other aspects have not yet been clarified.
This regularity is not comparable in every place and year.
at present
Many meteorologists are deeply studying the rhythmic activity of the atmosphere and its causes.
The research results in this field,
In order to develop long-term weather forecast,
There is no doubt that it is of great benefit.
On the surface, "Yun Zheyue" and "Snow Lantern" are the echo phenomena of clouds and snow, but in essence they are the echo relationship of two cold air activities.
That is to say,
If there is cold air activity around the Mid-Autumn Festival,
As a result, the phenomenon of "Yun Zheyue" came into being. So,
Around the Lantern Festival,
There will be another cold air invasion,
Form a situation of "snow hits the lights". Therefore, "Yun Zheyue in August 15,
On the fifteenth day of the first month, the snow lights up,
It is a reflection of the rhythmic activity of the cold air invading China for about five months. According to this proverb,
The rhythmic relationship of cold air activity for about 5 months was studied.
Use it for long-term weather forecast,
Good results have been achieved; The weather on other days also has this rhythm relationship.
It's just that most people don't notice.
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