Introduction to the weather characteristics of the Winter Solstice. Will it be cold during the Winter Solstice in 2019?
The Winter Solstice is a highly respected festival and solar term. Introduction to the weather characteristics of the Winter Solstice. Will it be cold during the Winter Solstice in 2019? Every day has good and bad, auspicious and inauspicious days. If you want to know more about the auspicious and inauspicious days in November of the lunar calendar 2019, please pay attention to the relevant articles about November of the lunar calendar 2019 compiled by Shuimoxiansheng.com!Introduction to the weather characteristics of the winter solstice《1》Winter Solstice Weather and Climate Characteristics:》In astronomy, the winter solstice is regarded as the beginning of the cold winter climate, which is obviously too late for most parts of my country. The winter solstice is the day with the shortest daylight in the year throughout the Northern Hemisphere. 》After the winter solstice, the sun's direct point gradually moves northward, the days in the northern hemisphere begin to gradually lengthen, and the altitude of the sun at noon gradually increases. 》After the winter solstice, although the solar altitude angle gradually rises, it is a slow recovery process. The heat lost every day is still greater than the heat received, presenting a "not enough to cover expenditure" situation. ——During the "Three Nine Days", the accumulated heat is the least, the temperature is the lowest, and the weather becomes colder and colder. If there is the influence of cold air at this time, the weather will be even colder. After this "cold front" passes, the weather will gradually become warmer. 《2》Climate and weather in the south and north: 》On the day of the winter solstice, the Northern Hemisphere receives the least solar radiation, about 50% less than the Southern Hemisphere. However, this day is not the coldest time. This is because there is atmosphere and moisture on the earth's surface, which can store heat. It is not "stored and lost" but "accumulated heat". my country has a vast territory and the climate and landscape vary greatly from place to place. 》The average temperature in most parts of northern my country is generally below 0℃, while in most parts of the south it is only around 6℃ to 8℃. Is it cold during the Winter Solstice in 2019?The winter solstice is not the coldest day.》During the winter solstice, the sun revolves to 270° of the ecliptic longitude. It is the day with the shortest daylight in the year, but not the coldest day. 》The coldest period should be during the "third nine" and "fourth nine" of the nine cold days. However, the meteorological conditions fluctuate to a certain extent every year, and the actual cold and warm should be based on the real-time weather. ——When is it the coldest? Although the sun is lowest and the sunshine time is shortest on the winter solstice, the heat absorbed by the ground is less than the heat lost. However, the heat accumulated by the ground over a long period of time is still being lost, and the near-ground temperature has not yet dropped to the lowest, so this is not the coldest time of the year. After the winter solstice, although the days become longer and the nights become shorter, in the short term the days are still short and the nights are long. The heat absorbed by the ground every day is still less than the heat lost, so the temperature does not rise immediately. ——People are accustomed to counting the nine days from the winter solstice, with every nine days being a "nine". Around the 39th day of the coldest winter, the ground stores the least heat and the weather is the coldest, so it is said that “the coldest day of the coldest winter”. In astronomy, the winter solstice is regarded as the beginning of winter, which is obviously too late for most parts of China. |
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