The impact of typhoon on human beings, typhoon is a rainfall system closely related to human life and production, which can bring enough rain. However, typhoon will also destroy people's living environment in various ways, and it is one of the most serious natural disasters in the world. Let's take a look at the impact of typhoon on human beings.
Impact of typhoon on human beings 1 1, strong wind
Typhoon is a huge energy pool, and its wind speed is above 17m/s, even above 60m/s. According to the measurement, when the wind reaches 12, the wind pressure per square meter on the plane perpendicular to the wind direction can reach 230kg.
2. Heavy rain
Typhoon is a very strong rainfall system. When the typhoon lands, the rainstorm center can drop 100-300mm a day, or even reach 500-800mm. The floods caused by typhoons and rainstorms are the most dangerous disasters. Typhoon rainstorm is strong, flood occurs frequently, spreads widely, and is fierce and destructive.
3. Storm Surge The so-called storm surge means that when the typhoon moves to the land, due to the typhoon's strong wind and low air pressure, the sea water accumulates strongly in the direction of the coast, the tide level rises sharply, and water waves are overwhelming to the coast. The storm surge of a strong typhoon can raise the coastal water level by 5-6 meters.
Storm surge meets astronomical high tide level, resulting in high-frequency tide level, which leads to tidal overflow, seawall burst, washed away houses and various building facilities, flooded towns and farmland, and caused a large number of casualties and property losses. Storm surge will also cause coastal erosion and land salinization caused by seawater intrusion.
Typhoon has at least the following benefits for human beings:
First, with the rapid growth of global population and the development of industry and agriculture, the demand for fresh water is expanding day by day, and the limited fresh water resources on land are unevenly distributed, so the problem of water shortage in the world is becoming more and more serious. However, tropical storms and typhoons have brought people abundant fresh water.
Typhoon brings a lot of rainfall to the coast of China, the coast of the Sea of Japan, India, Southeast Asia and the southeastern United States, accounting for more than 1/4 of the total precipitation in these areas, which is of great significance to improving the fresh water supply and ecological environment in these areas.
Secondly, the tropical and subtropical areas near the equator have the longest sunshine time, and the dry heat is unbearable. If there is no typhoon to dissipate heat in these areas, it will be hotter there and the surface sand shortage will be more serious. At the same time, the cold zone will be colder and the temperate zone will disappear. China will not have a spring city like Kunming, nor will it have an evergreen Guangzhou, and "Beidacang" and Inner Mongolia grassland will also cease to exist.
Third, the maximum speed of a typhoon can reach more than 200 kilometers per hour, and its energy is equivalent to the energy released when 400 2000-ton hydrogen bombs explode. Wherever they go, they destroy everything. This huge energy can directly cause disasters to mankind, but it also keeps the earth in thermal balance and makes mankind live and work in peace and contentment.
Fourthly, in the process of typhoon formation and operation with huge energy, with the help of lightning, long chains of water molecules can be interrupted to form active short-chain water molecules. Living things on the earth can increase the vitality of life after inhaling these short-chain water molecules, thus making the earth's ecology continue to develop.
Fifth, typhoons can also increase fishing output. Every time a typhoon blows, it turns over the river, rolling up the nutrients in the river bottom and the sea, increasing the bait, attracting fish to gather near the water surface, and naturally increasing the catch.
The impact of typhoon on human beings II threatens life safety.
Typhoon is so powerful that people are as light as a feather in front of it. Therefore, in the case of unsuspecting, typhoons will cause incalculable casualties. Typhoons can overturn ships, cut off power transmission lines, scrape off hanging objects (such as billboards or windows), cause landslides and mudslides, cause subgrade collapse or fracture, and spread diseases ... all of these will pose a direct or indirect threat to people's lives. In Bangladesh, 300,000 people died in the typhoon disaster. Even today when the typhoon forecast is more accurate and the government's emergency plan is more effective, it is impossible to absolutely avoid casualties caused by typhoons.
Induced disease
Psychological barriers When the wind howls, it will directly affect people's nervous system, causing psychological barriers including fear. Because typhoons mostly occur in summer and autumn in China, it is easier to induce depression at this time. Therefore, in the typhoon season, people with depression tendency should consult doctors in time and take corresponding measures.
Respiratory diseases When a typhoon comes, with the change of weather, the temperature will drop sharply. When the temperature is lower than 20℃, every two levels of wind power increase is equivalent to a temperature drop of 5 ~ 6℃. Therefore, whenever a typhoon comes, the wind speed suddenly increases and the temperature suddenly drops, which will reduce the local temperature of the human respiratory tract, shrink the capillaries, slow down the ciliary activity of the mucosal epithelium, and weaken the bacteria discharge function of the trachea. At this time, it is easy to induce respiratory diseases, such as colds, chronic bronchitis and bronchitis.
Patients with emphysema are prone to relapse under cool breeze, and some fever symptoms will aggravate the condition when encountering cool breeze.
Myocardial infarction According to the research of medical meteorologists, most patients with coronary heart disease are very sensitive to strong wind cooling, and the risk of myocardial infarction increases.
Other diseases, strong wind cooling have a significant impact on patients with joint diseases and stomach diseases.
The main preventive measures for the above diseases are to keep warm and seek medical attention in time.
Low air pressure affects human oxygen supply.
People need about 750 mg of oxygen every day, of which 20% is used by the brain. When the air pressure drops, the partial pressure of oxygen in the atmosphere, the partial pressure of oxygen in alveoli and arterial oxygen saturation will all drop, which will lead to a series of physiological reactions, such as shortness of breath, rapid heart rate and dizziness. Especially when the typhoon center moves, the air pressure often drops to more than 900 hectopascals, and patients with cardiovascular and cerebrovascular diseases or poor cardiopulmonary function will have obvious discomfort. Healthy people may ignore the slight discomfort caused by low air pressure because of the rapid movement of typhoon center and the gradual increase of air pressure.
Make the condition worse
It is found that most patients will get worse under low pressure circulation and low pressure transport. Before the arrival of the typhoon, people will feel suffocated and depressed, and the autonomic nerves will tend to be nervous, which will lead to the aggravation of the disease.
The influence of typhoon on human beings. Measures to prevent typhoons and mitigate typhoon disasters
First, insist on duty and inspection. During the flood season from July 29th to August 2nd, the personnel on duty should adhere to the 24-hour duty system. The main leaders should personally grasp, and the leaders in charge should stick to their posts. If you have gone out, you should point out that someone is responsible for the prevention of geological disasters, and organize personnel to inspect the dangerous points of geological disasters, and deal with hidden dangers in time to ensure the safety of people's lives and property.
Second, strengthen supervision and inspection. It is necessary to pay close attention to typhoon dynamics and rainstorm information, do a good job in forecasting geological disasters, promptly notify responsible comrades in townships and towns and those responsible for mass monitoring and prevention of geological disasters, urge monitoring personnel to take up their posts, guide grassroots and the masses to do a good job in protection, and conduct spot checks on the arrival of monitoring personnel at important geological disaster risk points and the preparedness for disaster prevention at dangerous points. If the responsible person causes damage due to dereliction of duty, the responsible person should be seriously investigated for responsibility and will not be tolerated.
Third, publicize and popularize the basic knowledge about geological disasters to the people threatened by geological disasters, so that the threatened people can observe the precursors of geological disasters at the first time, evacuate and avoid casualties in time.
Fourth, avoid and report. In case of danger and disaster, it is necessary to assist the local government to start the emergency plan in time, take emergency measures, and decisively evacuate all personnel threatened by geological disasters in the dangerous area. When geological disasters occur, emergency rescue should be organized quickly and reported according to the quick report system.
The influence of typhoon on life
1, crops are damaged, affecting growth and development.
During this period, household appliances can't be used, and you will get an electric shock.
3, you can't talk when you go out, definitely not.
If you are a student, according to the intensity of the typhoon, decide to suspend classes for a few days.
For a country, the lost economy is definitely heavy.