How is the wind formed? What effect would the wind have on the planet if it disappeared?
What would happen to the earth if there were no wind in the world? Whether it is the cold wind in winter or the cool breeze in summer, the wind is always around us, so do you know how the wind is formed? Once the wind disappears, how will the earth change?
Wind is actually a natural phenomenon that we often find, and it brings us convenience while at the same time having considerable destructive power, making people love and hate. Ever since human beings entered scientific civilization, they have begun to explain the formation of wind from a scientific point of view. After careful research by scientists, it is agreed that wind is an air flow phenomenon on Earth, generally caused by the heat of solar radiation. Sunlight shines on the surface of the earth, so that the surface temperature rises, the air is heated and expands to rise, the cold air in the distance flows horizontally, then the rising air gradually becomes lighter and falls, the surface temperature is higher and will heat the air, and the wind will form. Simply put, air flow is wind. From a more microscopic point of view, the wind on the earth is also related to the water source, just like the air, when the huge volume of water vapor forms water, the volume shrinks, the water vapor quickly occupies the position, and the flow caused by the transformation of the form of water is the wind.
Wind can be said to be closely related to our lives. It promotes human power generation, helps with refrigeration, imparts plant pollen, removes smog, and purifies the air. The ocean forms ocean currents because of the wind, which produces the migration of aquatic and terrestrial animals, and the clouds in the sky flutter with the wind, allowing the arid parts of the earth to be moistened by rain. However, if the wind exceeds a certain limit and forms a typhoon or hurricane, it will cause great damage to the land and the sea, causing permanent damage to the ocean, ships, and aviation equipment. At the same time, it will also contribute to abuse, fuel fire, and combine with heavy rain to cause great inconvenience to human travel, and even lead to the disappearance of the former overlord dinosaurs of the earth overnight.
Given the harm of wind to the earth, some people imagine that if the earth did not have wind, would it be better? Give a thumbs up to the cat, this will reveal the secret for you ~ without the wind, naturally there is no cold tide and warm current, during the day, the sun mercilessly illuminates the earth, there is no trace of coolness, can only hide in the air-conditioned room, long-term stay in the office kilometer, which is extremely detrimental to physical health. Without the huge air conditioning of the wind, the hot and cold air will not alternate, the equator will be hotter, the Arctic and antarctic will be colder, the area of human settlement will be greatly reduced, food shortages, social contradictions and conflicts will intensify, and it is very likely to trigger World War III. Without the wind, the rain will be much less, the clouds will no longer flow, which will make the flooded place will be a swamp, the arid place will crack the surface, the groundwater resources are scarce, and eventually become a desert, humans can only rely on well water for water, over time, human traces will disappear. All in all, the earth without wind will be a static planet, and human beings can no longer care about the destructive power of wind, and can build towering towers, and can also build all kinds of strange shapes. The most important thing is that the great age of navigation in human history will also disappear, explorers will not discover new continents at all, human technological inventions will be greatly reduced, and there will be no communication between continents. Perhaps human beings still live in isolated paradises and cannot communicate with the outside world. So humans and the planet we live on need wind.
After the research of scientists, it was found that in some areas of the equator and low latitudes, the solar altitude angle is large, the sunshine time is long, the solar radiation intensity is strong, the temperature on the ground is very high, and the air flows quickly, which will cause more winds. In high latitudes, the sun altitude angle is small, the sunshine time is short, the surface temperature is low, and the temperature difference between high and low latitudes causes air inflation to form a north-south pressure gradient. Coupled with the Fact that the Earth's bias force deflects the northern hemisphere airflow to the right and the southern hemisphere airflow to the right, it forces with the pressure gradient force dominate the true motion of the atmosphere, thus forming different kinds of winds. So what are these different types of wind related to?
According to the time and geographical location of wind formation, we can divide them into monsoons, sea and land winds, valley winds, mountain winds, etc. Monsoon, as the name suggests, is related to the season. In our country, spring and summer are basically southeast wind, the east of our country is close to the East China Sea, the Sea of Japan and other oceans, this period the continent is hotter than the ocean, the hot air on the continent rises, the cold air on the sea surface is supplemented, the wind at this time usually gives people a comfortable feeling, in the winter, the continent is cold and the ocean is hot, the hot air of the ocean rises, the cold air on the ground blows to the ocean, so the place near the ocean, the winter is generally not too cold, which is due to the credit of the wind. The second is the sea and land wind. Its formation is related to day and night. We call the daytime wind the sea wind and the night wind the land wind, and its formation is temperature-related, similar to the monsoon. The third is the mountain wind, the valley wind. During the day the sun shines on the plains and hillsides, the slopes are heated fast, the temperature is high, the temperature is higher than the air temperature of the same height, the slope warm air flows from the hillside to the top of the valley, the cold air of the valley blows to the plain or hillside, filling the gap in the airflow, this is the valley wind, at night it is just the opposite, the slope cooling rate is much faster than the air of the same height, and the cold air flows down the slope into the valley, which we call the mountain wind. According to the wind speed, direction, humidity, people also divide the wind into gusts, typhoons, tornadoes and so on.
On the whole, the wind often affects people's lives, but it has brought great benefits to human beings and promoted the progress and development of human civilization, and many of our scientific research achievements today, including electricity, are due to wind, so human beings cannot do without wind. What other resources in nature do you think we can never "let go"?