Why is it so quiet after a heavy snowfall? Why is it so quiet after a heavy snowfall?

Many people like snowy days in life because they can do a lot of things on snowy days, but if you look closely, you will find that the surrounding area is quieter on snowy days. So when is it expected to snow in 2020? When is it expected to snow in 2020?

Why is it so quiet after heavy snow?

There are two main reasons:

The weather is too cold

The surrounding air after snow is It's relatively cold. If you don't take precautions against the cold when you go out at this time, you will easily develop uncomfortable symptoms such as colds, which will cause harm to human health. Therefore, many people are reluctant to go out, so they will appear very quiet.

Snowflakes

Another reason is that the shape of snowflakes has a porous structure, with many small pores on the surface. These small pores are large inside and have small exits, which can absorb most of the sound. . When sound enters these small pores, it will be reflected multiple times by the wall of the hole. Due to the small exit, only a small amount of sound can be reflected out, and most of the sound will remain in the small pores, so the air will appear particularly quiet after heavy snowfall.

The expected snow time in 2020

Depends on actual conditions.

This winter will be colder, mainly because this winter will be affected by the La Ni?a phenomenon, which will cause the temperature to drop and the possibility of snowfall to increase. This means that snowfall may occur in many places this year, but after all, our country is vast. , and has many low-temperature zones. Different regions have different altitudes, so the snowfall time and temperature are different. They need to be determined according to the specific local conditions and cannot be generalized. This is wrong.

2020 will enter an era of extreme cold

Maybe.

According to the current weather trends, the winter of 2020 will be relatively cold, mainly because this winter may be affected by the La Ni?a phenomenon, which will cause global winter temperatures to drop.

However, with the warming of global temperatures, the weather has begun to become complex and changeable. In some years, the winter weather is relatively cold, and in other years, there are mild winters. So is there extreme cold weather in 2020? It is not known yet, the specific weather conditions are still subject to actual weather conditions.

Will it be cold in the winter from 2020 to 2021?

Will it be cold?

According to research from the Meteorological Bureau, there are three major factors that can indicate that this year will be a cold winter in 2020-2021. First, the extreme sunspot trough in 2020 will continue for the third year; secondly, 2020 will be a possible La Ni?a year; and That is, the PDO will return to the cold phase in 2020; according to the current analysis of the earth's air and sea, the PDO cold phase and La Ni?a events have a high probability of forming next year. All signs indicate that the winter of 2020-2021 will be cold.

But after all, the weather is changeable, and whether it is cold or not needs to be determined based on the actual situation. We cannot draw a one-sided conclusion. This is wrong.