solar terms are valuable experiences summed up by the ancients through long-term observation, including the change laws of natural phenomena such as seasons, climate and phenology. For thousands of years, they have been an important guide for people's daily life and agricultural production. Especially in understanding the ancients' cognition of meteorology, solar terms can be called "living fossils" and have played an important role, Then let the old yellow calendar introduce you. The 24 solar terms,
are the experience of the ancients on the changing laws of seasons, climate and phenology by observing the annual movement of the sun. It can be said that it is the earliest weather and climate forecast. In modern climatology, the understanding of the regularity brought by the 24 solar terms has great reference significance. As a "living fossil" of cognitive meteorology, it is not only a culture, but also highly scientific.
people first studied the changes of time and season by observing the changes of the sun's shadow. The 24 solar terms are divided according to the orbit of the earth around the sun, that is, the position of the sun on the ecliptic. Depending on the sun starting from the vernal equinox, that is, zero degrees of the Yellow meridian, at this moment, the sun shines vertically on the equator, and every 15 degrees forward is a solar term; It runs for a week and returns to the spring equinox. It is a year of return, and the 24 solar terms are exactly 360 degrees. The 24 solar terms ofand
are the needs of the agricultural era. At that time, there was no modern technology and everything depended on the weather. The cultivation and sowing of farmland needed to understand the weather and climate. Therefore, our ancestors understood the natural changes of the outside world by observing the changes of the sun, moon and stars. The 24 solar terms ofand
mainly correspond to agricultural activities. Although it originated in the middle and lower reaches of the Yellow River and guides agricultural activities there, the 24 solar terms can be used from Northeast China to Hainan. This is because the 24 solar terms are not immutable. It is like a coordinate. People in different regions will find suitable local farming nodes in the coordinates in combination with local weather and climate characteristics, so as to guide the local farming process.and
today, with the continuous development of science and technology and the continuous improvement of the refinement level of weather forecast, the 24 solar terms are still not outdated. Although modern science has improved the monitoring means and the refinement of forecast, the grasp of weather phenomena is still not 100% accurate.
and the 24 solar terms are the summary of the experience and laws of long-term observation of weather, climate, production and life for thousands of years. Modern meteorology often uses the principle of statistics to find out the law from as many samples as possible, which is the same as the principle of the ancients to summarize the 24 solar terms. Therefore, this method is not outdated today.and
from the perspective of meteorologists, the 24 solar terms will still be regarded as a part of meteorological scientific knowledge. Although the development of modern science is very important to the promotion of meteorology, meteorological work still needs to summarize the past meteorological laws and study the 24 solar terms, that is, the past climatic characteristics, which is also of great significance to the current meteorological science.and
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