Wind is a natural phenomenon in the form of air moving through our land. Each of us feels a breath of wind on the body, and can watch the wind stir the branches of the trees. The wind can be either very strong or very weak. Let's see where the wind comes from and why its strength depends.
Why is the wind blowing?
Please note that if you open a window in a warm room, the air from the street will go straight into the room. And all because the movement of air is formed when the temperature in the rooms is different. Cold air tends to block warm, and vice versa. Hence the concept of "wind". Our Sun heats the air shell of the Earth, from which part of the sun's rays fall on the surface. Thus, the entire earthly space is heated - soil, seas and oceans, mountains and rocks. The land heats up very quickly, while the water surface of the Earth remains cold. Thus, warm air from land rises, and cold air from the seas and oceans takes its place.
What determines the strength of the wind?
The strength of the wind is directly dependent on temperature. The larger the temperature difference, the higher the air velocity, and thereby the wind force. The strength of the wind is determined by its speed. But also a number of factors affect the strength of the wind:
- Sudden changes in air temperature in the form of cyclones or anticyclones ;
- Terrain (the more relief the terrain, the faster the wind speed);
- The presence of seas or oceans that warm up much more slowly, causing temperature changes.
What types of winds are there?
As we already found out, the wind can blow with different strengths. Each type of wind has its own name. Consider the main ones:
- The storm is one of the most powerful types of wind. Often accompanied by the transfer of sand, dust or snow. Able to cause damage by knocking down trees, shields and traffic lights;
- A hurricane is a type of storm with the highest speed;
- Typhoon is the most devastating hurricane that can manifest itself in the Far East;
- Breeze - wind from the sea blowing on the coast;
One of the fastest natural phenomena is a tornado.
Tornado - both a terrible and beautiful sight
As we have already found out, winds do not come from anywhere, the reason for their appearance is to varying degrees of heating of the Earth's surface in its different regions.
Why the wind blows - informative video