What are the climatic characteristics of solar terms in Grain Rain?

Climatic characteristics of solar terms in Grain Rain

spring drought

Huaihe river basin is a transitional zone between the spring rain area in the south of the Yangtze River and the spring drought area in the north. From the north of the Huaihe River in Qinling Mountains, the spring rain dropped sharply. As the saying goes, "Qingming Grain Rain is often short of rain", which means that during these two solar terms, there is a shortage of rain. During Grain Rain, people in Hainan Island, western Sichuan, western Guangxi, northwest China and north China are more eager for rain. Generally speaking, there are many sunny days, strong sunshine, large evaporation, windy sand and dry air, so the rain is more expensive at this time.

rains cats and dogs

When entering the Grain Rain solar term, the middle and lower reaches of the Yangtze River and the south of the Yangtze River often start to rain obviously, especially in South China. Once cold air meets warm and humid air, it will often form rainy weather for a long time, and it will enter the first flood season of the year. Strong convective weather wrapped in clouds and rain will not only bring disasters such as hail and thunderstorm, but also be accompanied by short-term, local rainstorm or torrential rain. 24-hour rainfall can reach more than 300 or 400 mm, resulting in river flooding and serious waterlogging, and long-term heavy rain will also lead to mudslides, landslides and other disasters.

aeolian sand

According to the 24 solar terms, Grain Rain is the last solar term in spring. Grain Rain in late spring means that spring will end and summer will come. The large-scale invasion of cold air into the south is rare, but the cold air activities affecting the north will not stop. 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 high-altitude wind drops, the frontal cyclone is active, and the windy and dusty weather caused by * * * is more common. A wide range of floating dust weather, dark sky and falling yellow dust have eclipsed the poet's pictures of grass growing, flowers blooming and spring.

Strong convective weather

Generally speaking, April to August is the peak period of strong convective weather in a year. In May, severe weather such as thunderstorms, hail, strong winds and tornadoes will increase significantly in many areas in the south. Lightning protection, hail suppression and wind protection are put on the agenda.