The first typhoon "Du Fu" was born this year. What effect does typhoon have on our life?

Typhoon has brought enough rain to vast areas, which has become a rainfall system closely related to human life and production, and can alleviate local drought and change local heat. But typhoons are also harmful.

In Southeast Asian countries, including China and the United States, typhoon rainfall accounts for more than 1/4 of the total rainfall in these areas, so if there is no typhoon, the agricultural difficulties in these countries will be unimaginable; In addition, typhoons also play an important role in regulating the earth's heat and maintaining the heat balance. As we all know, tropical areas receive the most solar radiation heat, so the climate is also the hottest, while cold areas are just the opposite. Due to typhoon activity, the heat in tropical areas is dispersed to high latitudes, thus compensating the heat in cold areas. If there is no typhoon, the climate in tropical areas will get hotter and hotter, the temperate zone on the natural earth will no longer exist, and many animals and plants will become extinct because they are difficult to adapt. That would be a terrible scene. Typhoon is a huge energy pool, and its wind speed is above 17m/s, even above 60m/s ... it damages buildings, crops and trees and affects traffic.

Typhoon is a very strong rainfall system. When the typhoon lands, the rainfall center can drop 100-300mm or even 500-800mm a day. The floods caused by typhoons and rainstorms are the most dangerous disasters. The intensity of typhoon rainstorm is high, the frequency of flood is high, the spread range is wide, and it is fierce and destructive. Continued heavy rain may also cause mudslides and landslides. This may cause loss of life and property. 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, resulting in tidal surge, breakwater, washing away houses and various building facilities, flooding towns and farmland, causing a large number of casualties and property losses. Storm surges can also lead to coastal erosion, seawater intrusion and land salinization.

Before the typhoon comes, the meteorological observatory will issue typhoon news or typhoon warning. Everyone must take precautions and protect themselves in advance.

Prepare necessary food, drinking water, medicines and daily necessities, as well as emergency appliances such as candles, emergency lights and flashlights, and move flowerpots and sundries easily blown off by strong winds such as balconies, window sills and roofs indoors or other safe places in time. Strengthen outdoor suspended, high-altitude facilities and simple temporary buildings, dismantle them when necessary, and transfer furniture, electrical appliances and materials. In low-lying areas, houses along the river and other flooded houses should be moved to high places in time. Don't go to areas that may be affected by typhoons. If the typhoon may affect regional tourism, you'd better go back early. People living in dangerous areas should prepare necessary daily necessities and food as soon as possible, and be ready to move at any time. Old, weak, sick, disabled, pregnant, young, etc. You should vote for relatives and friends as soon as possible.