What are the meanings of valley, dew, winter snow and snowy winter in the 24 solar terms?

In the twenty-four solar terms, Google is Grain Rain, dew is white dew, winter snow is beginning of winter and light snow, and snowy winter is heavy snow and solstice.

1, Gu: After the arrival of Grain Rain and Grain Rain, grains can thrive under sufficient rainfall.

2, dew: white dew, the weather turned cold, dew turned white.

3. Winter Snow: beginning of winter, beginning of winter. Xiaoxue, it's starting to snow. Heavy snow, increased snow, snow on the ground.

4, snowy winter: heavy snow, increased snow, snow on the ground. The solstice of winter, the cold winter is coming.

The naming of the twenty-four solar terms reflects three seasons, phenology and climate changes.

1. The solar terms reflecting the changes of the four seasons are: beginning of spring, vernal equinox, long summer, summer solstice, beginning of autumn, autumn equinox, beginning of winter and winter solstice. Among them, beginning of spring, Changxia, beginning of autumn and beginning of winter are collectively called "Sili", which means the beginning of the four seasons.

2. There are five solar terms reflecting temperature changes: slight summer heat, great summer heat, summer heat, slight cold and severe cold. There are seven solar terms reflecting weather phenomena: rain, Grain Rain, white dew, cold dew, first frost, light snow and heavy snow.

3. There are four solar terms reflecting phenology, namely, fright, Qingming, Xiaoman and Mangzhong.