What does Grain Rain mean and what are the climatic characteristics of the Grain Rain solar term?
Introduction: Grain Rain is one of the 24 solar terms in our country, and the arrival of different solar terms indicates climate change. So what does Grain Rain mean and what are the climatic characteristics of the Grain Rain solar term? In March, all things come back to life, willows are green, flowers are red, orioles are singing and swallows are dancing, and the earth is full of vitality. The Fortune Teller website has compiled detailed information for you about the third month of the lunar calendar in 2018!What does Guyu mean?Guyu is the sixth solar term of the twenty-four solar terms and the last solar term in spring. It occurs when the sun reaches 30° of the ecliptic longitude from April 19th to 21st every year. It comes from the ancient saying that "rain brings forth hundreds of grains." It is also the best time to sow seeds, transplant seedlings, and plant melons and beans."The snow stops in Qingming and the frost stops in Guyu." Meteorological experts say that Guyu is the last solar term in spring. The arrival of Guyu means that the cold wave weather is basically over and the temperature will rise faster, which is greatly beneficial to the growth of cereal crops. What are the climatic characteristics of the Grain Rain solar term?1. Wind and Sand <br /> According to the 24 solar terms, Grain Rain is the last solar term in spring. Grain Rain in late spring means that spring is coming to an end and summer is approaching. There are fewer cases of cold air invading the south, but the cold air activities affecting the north are still ongoing.From the end of April to the beginning of May, the temperature is much higher than that in March, and the soil is dry and loose; the air layer is unstable, the upper wind momentum is transmitted downward, and the frontal cyclones are active, and the strong winds and sandstorms caused by them are more common. 2. Spring Drought <br /> The Huaihe River Basin is a transitional area between the spring rain in the south of the Yangtze River and the spring drought in the north. From the Qinling Mountains and the Huaihe River to the north, the spring rain decreases sharply. As the saying goes, "There is often a lack of rain during Qingming and Guyu," which means that there is a shortage of rain during these two solar terms. During the Grain Rain period, people in Hainan Island, western Sichuan, western Guangxi, Northwest China, and North China are more eager for rain. In normal years, there are many sunny days, strong sunshine, great evaporation, much wind and sand, and dry air. Rain at this time is as precious as oil. Overwintering crops such as winter wheat and rapeseed need rain to enter the maturity stage. Millet, corn, sorghum, cotton, vegetables, etc. sown in spring also need rain to take root, grow strong seedlings, and thrive. A heavy rain at this time is equivalent to raining grain! If there is little snowfall in winter, drought is likely to occur. For areas where spring drought occurs nine out of ten years, it is very important to take measures such as water-saving irrigation and artificial rainfall increase. Spring drought is also an accomplice of forest and grass fires. It can be said that it has reached a critical stage for forest areas to strengthen forest fire monitoring and fire prevention publicity. 3. Severe convective weather <br /> Generally speaking, April to August is the peak period of severe convective weather in a year. As May approaches, localized disastrous weather conditions such as thunderstorms, hail, strong winds, tornadoes, etc. will increase significantly in many areas in the south. Lightning protection, hail protection and wind protection are put on the agenda. 4. Heavy rain <br /> In the middle and lower reaches of the Yangtze River and the south of the Yangtze River, it often starts to rain a lot, especially in southern China. Once the cold air meets the warm and humid air, it often forms a long period of rainfall, and it enters the annual pre-flood season. Severe convective weather wrapped in clouds and rain will not only bring disasters such as hail and thunderstorms, but some will also be accompanied by short-term, localized heavy rain or extremely heavy rain. The 24-hour rainfall may reach more than 300 or 400 mm, causing rivers to overflow and serious waterlogging, while longer heavy rain will also trigger disasters such as mudslides and landslides. Summary: The above content is about [What does Grain Rain mean and what are the climatic characteristics of the Grain Rain solar term? 】Problem analysis, hope it can help everyone! |
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