This is the solar term of heavy snow. What is goose feather in winter?

Goose feather is a collection of snowflakes.

The so-called "goose feather snow" is actually a polymer of snowflakes. As we all know, snowflakes are small hexagonal ice flowers condensed by water vapor in the air, with loose branches. When it snows heavily, the density of snowflakes falling from the air is relatively high, so many snowflakes cling to each other and blend together before landing. These snowflakes stick together and even fuse many times, which is called "goose feather snow".

An ancient poem says, "The ground is white, and the flying place is always light and bright" (from William Wang's Snow Puppet). On February 7th, 65438, there will be heavy snow in 24 solar terms, which is the 2 1 solar term in a year and the third solar term in winter. The heavy snow solar term marks the official start of the mid-winter season, and the temperature in all parts of China will drop obviously, while the precipitation will increase.

Twenty-four solar terms are the product of the farming era, and they are a system formed by the ancients by observing the movement of the sun and summarizing the changing laws of climate and phenology in a year. Like the light snow solar term, the heavy snow solar term reflects the changing trend of temperature and precipitation. It may not snow heavily this day, but the probability is relatively high.