How Big is the Snow Picture Book

How Big Is the Snow Picture Book is a picture book written by Xue Tao, drawn by Peach, and published by 21st Century Publishing House Group, which tells the story of a daring adventure in the freezing snow and a magical experience on the vast snowfield.

Snow, solid water in the form of snowflakes that falls to the ground from mixed clouds. Precipitation consisting of large numbers of white opaque ice crystals (snow crystals) and their polymers (snow masses).

Snow is a natural phenomenon in which water condenses in the air and then falls, or falling snow; snow is a form of water in a solid state. Snow will only occur at very cold temperatures and under the influence of temperate cyclones, so subtropical and tropical regions have a slimmer chance of snow.

Snow is one of the forms of precipitation. Meteorologically, rain, snow, hail and other condensation of water vapor that falls from the sky to the ground is called "precipitation". Snow is precipitation consisting of a large number of white, opaque ice crystals (snow crystals) and their polymers (snow clusters).

Water is fundamental to the existence of all living things on Earth, and the changes and movements of water make our world what it is today. On Earth, water moves in a constant cycle. Water in the oceans and on the ground is heated and evaporates into the sky, and these water vapors move elsewhere with the wind, and when they meet cold air, they form precipitation that returns to the Earth's surface.

This precipitation is divided into two types: one is liquid precipitation, which is rain; the other is solid precipitation, which is snow or hail and so on. "Snow is the product of cold water vapor, representing cold and precipitation. Most of the snow falls from rain clouds and upper level clouds, and the intensity of precipitation is slow to change; snowfall from cumulonimbus clouds on cold days is characterized by bursts and is called snow showers.

Snow is made by the direct condensation of water vapor in the atmosphere or by the direct solidification of water droplets. It can also be said to be snowing when the temperature in the cloud is so low that small droplets of water crystallize into ice crystals and fall to the ground still as snowflakes. Ice absorbs heat when it melts, so the temperature on the ground will be lower than when it snows.?

Snowfall consists of a large number of snow crystals of different sizes, usually more small ones. To characterize the size distribution of a population of snow crystals falling at the same time, a snow crystal spectrum or a spectrum of a solution of dissolved snow crystals is commonly used.

Snow crystals are mainly in the cloud condensation increase, first in the cold cloud through the role of ice nucleation of ice crystals, through the condensation (ice crystal process) to grow into snow crystals, and later on can also be hit by freezing over the cold water droplets and grow. The shape of snow crystals changes when they are hit by a lot of cold water droplets. Snow crystals have a variety of shapes, which are related to the temperature and humidity of the environment in which they grow.

Snowfall, like all precipitation, is measured by the thickness of the equivalent layer of water in millimeters (mm), and is sometimes measured in practical terms by the depth to which snowfall accumulates on a flat surface, known as the snow depth.