Characteristics of solar terms of heavy snow: climate difference between north and south.

Heavy snow is 2 1 of the 24 solar terms and the third solar term in winter. Heavy snow is a solar term reflecting climate characteristics. Heavy snow solar terms are characterized by a significant drop in temperature and an increase in precipitation. What are the characteristics of this solar term? What's the difference between the climate in the south and in the north? Let's take a look with us next.

Characteristics of solar terms in heavy snow

It doesn't necessarily snow on the day of heavy snow and solar terms. Snow solar term is a climate concept, which represents the climate characteristics during the snow solar term, namely temperature and precipitation. Heavy snow means colder weather, and the possibility of snowfall in solar terms is greater than that of light snow. This doesn't mean that there must be a lot of snowfall. The arrival of heavy snow in solar terms means that the weather is getting colder and colder and precipitation is increasing.

The climate in the south

The most common solar term of heavy snow is cooling. China has a vast territory, and the climate between north and south is quite different. The temperature in the south is higher than that in the north. In areas with cold weather or high altitude, there will be snowfall and frost in the south. Strong cold air often brings snowfall or blizzard. Other places, especially Fujian, Guangdong and Yunnan, are still lush and green, which is quite different from the climate in the north. In the south, the winter climate is mild and there is little rain and snow. Although there is little rain and snow, it is foggy. Generally, 65438+February is the month with the most foggy days. Fog usually appears in cloudless nights or partly cloudy mornings, which is called fog in meteorology. Strong cold air reaches the south, especially in Guizhou, Hunan, Hubei and other places, which is prone to freezing rain. Freezing rain is snow falling from the upper cold layer, sometimes it melts into rain in the middle layer, and becomes supercooled water with raindrops at a temperature below 0℃ in the lower cold layer. Freezing rain happens when it touches anything on the ground.

The climate in the north

Before and after the solar term of heavy snow, the climate in the northern region generally dropped below zero degrees Celsius, and the northeast and northwest regions even dropped to about MINUS ten degrees Celsius, which led to the phenomenon of heavy snow, and the Yellow River Basin gradually accumulated snow. In most areas of Northeast China and the Yangtze River valley, rime will appear one after another, especially in mountainous areas with high humidity. Rime is the milky white ice crystal precipitation formed on objects by direct condensation of water vapor in the air at low temperature or direct freezing of supercooled water droplets.