Good rain knows the season, when spring comes. Sneak into the night with the wind, moisten things silently.
The wild path is dark, and the river is bright. Look at the red and wet place, the flowers in Jinguancheng are heavy.
Delighting in Rain on a Spring Night is a poem written by Du Fu, a poet in the Tang Dynasty. This poem depicts the characteristics of spring rain and the scene of rainy night in Chengdu with great joy, and enthusiastically eulogizes the timely and moist spring rain. The poet uses anthropomorphic techniques to describe the spring rain, which is subtle, delicate, vivid and vivid. The whole poem is elegant in artistic conception, quiet in meaning and integrated with painting. This is a poem about rain, with vivid and unique charm.
Spring thunder, meteorological term. Every spring, especially after dormancy, the obviously enhanced warm and humid air confronts the unruly cold air fiercely, resulting in a strong vertical convection movement of the air. When moist warm air rises to a certain height, it will form high cumulonimbus clouds. The strong electric field in the cloud will make the positive and negative charges collide and discharge, thus causing sudden lightning.
Thunder only conforms to the meteorological laws in some parts of southern China. In spring, affected by the warm and humid airflow in the south, the air is humid and the solar radiation is strong. The air near the ground is constantly heated up, and the upper cold air sinks, which is easy to form strong convection, so there are many thunderstorms and even hail. It can be seen that the occurrence of lightning at this time is not only related to the increase of near-surface temperature, but also related to the cold air activity and the obvious increase of water vapor in the air.
Spring is coming. With the enhancement of warm and humid air and abundant water vapor, the towering thunderstorm cloud system develops, so spring thunder occurs every year.