The autumnal equinox is the characteristic of temperature and climate on which day of the lunar calendar
when we were young, when we wrote about autumn, we often wrote words such as "late autumn season" and "golden autumn September" to describe autumn. The so-called "late autumn season" and "golden autumn September" actually refer to the autumnal equinox. The autumnal equinox is located in the middle of autumn. At this time, the breath of autumn gradually thickens. Autumn is high and crisp, which is a suitable season for travel.
when is the autumnal equinox? The
autumnal equinox is the fourth solar term in autumn and the 16th of the twenty-four solar terms. September 23 or 24 of each year. Temperature and climate characteristics ofautumnal equinox
autumnal equinox is a solar term representing seasonal changes. On the autumnal equinox, the sun is located at 180 degrees of the Yellow longitude, the sun is almost direct at the equator, and the day and night are almost the same length. At this time, the temperature in Sichuan basin generally dropped below 22 ℃ and entered a cool autumn. "An autumn rain, a cold". The cold air going south meets the gradually decaying warm and humid air, resulting in rainfall and temperature drop again and again. In the northern part of the Western Sichuan Plateau, when the daily minimum air temperature drops below 0 ℃, you can already see the magnificent snow scenery of flocs flying all over the sky and the earth wrapped in silver. After the autumnal equinox, the rainfall in Sichuan Province decreased significantly, and rainstorms and heavy rains generally rarely occurred; However, the number of rainfall days has increased. It is often cloudy and rainy, and the night rain rate is also high. Li Shangyin, a famous poet of the Tang Dynasty, vividly described the climate characteristics of rainy nights in autumn in Sichuan. The basin and Liangshan Prefecture of our province have a lot of continuous rain in autumn, with serious wet damage, which has a great impact on autumn harvest, autumn tillage and autumn planting. We should seize the sunshine, manage moisture and prevent stains, and pay close attention to the quality and progress of "three autumn" production. At the same time, we should make full use of the meteorological conditions of cloudy and rainy autumn and good soil moisture, lose no time to engage in afforestation and strive to improve the survival rate of seedlings.and
thunder began to stop at the autumnal equinox: the ancients believed that thunder sounded because of the prosperity of Yang Qi. After the autumnal equinox, Yin Qi began to flourish, so there was no more thunder.and
insects: some insects unearthed at the spring equinox will return to the soil after the autumn equinox to prepare for the winter.and
the water starts to dry up: the water vapor is not as abundant as in summer, and will begin to dry up gradually, so we will feel that the air is getting drier and drier.https://www.dailyq-a.com/Culture/33151.html
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