Many countries in Europe have ushered in snowfall. What are the adverse effects of snowfall?

Generally speaking, the snow level specification refers to the specification of continuous snow or snowfall within a specified time range, and the classification is based on the amount converted into precipitation. This specification generally adopts two specifications: delay time 12 hours and 24 hours.

If the 24-hour rainfall is taken as the zoning standard, in which the rainfall of 0.1mm ~ 2.4 mm is slightly cold,10 mm ~ 3.7 mm is small to medium snow, 7.5 mm ~ 4.9 mm is medium to heavy snow, and 3.8 mm ~ 7.4 mm is medium to heavy snow, that is 5.0 mm ~ 9.9 mm and 7.7 mm. If the rainfall of 12 hour is taken as the zoning standard, among them, the rainfall of 0. 1 mm ~ 0.9 mm is slightly cold, 0.5 mm ~ 1.9 mm is small to medium snow, and 1.0 mm ~ 2.9 mm is medium to heavy snow, which is 3.0 mm ~.

This snow has many harmful effects. For example, rainy and snowy days will reduce the average temperature, muddy roads and low visibility in some areas, which will do some harm to urban traffic. Therefore, people should pay special attention to slowing down when driving and try not to choose cycling. Friends who fly should pay attention to the plane delay. In rainy and snowy days, with the decrease of temperature and the experience of severe cold, it is very easy to cause respiratory diseases and bronchitis. Therefore, people should wear clothes when they go out, and their ears, hands, feet and neck should not be exposed as much as possible, and measures should be taken to prevent freezing and keep warm. At the level of agriculture and animal husbandry, areas with severe snowfall will do harm to protected vegetables and aquaculture, as well as to the shipment and freight logistics of protected vegetables. It is suggested that the production and manufacture of protected vegetables and aquaculture should pay attention to the immediate maintenance of structural reinforcement equipment, do a good job in thermal insulation and antifreeze of arch sheds, and do a good job in feed storage in agricultural and pastoral areas to actively prevent the damage of greenhouses or equipment crops caused by heavy snowfall in some areas. Attention should be paid to bypassing the whole process of rain and snow weather in western region, eastern region, southern North China and Huanghuai.

Naturally, there is no doubt that this rain and snow weather will also produce some beneficial harm. For example, the area covered by rain and snow is the winter wheat planting area, and snow can greatly improve soil moisture, thus reasonably curbing diseases. It can be said that snow is a good omen for a good year. In addition, rainy and snowy days will also play a prominent role in air filtration in many areas, and also have a positive and proactive harm to reducing forest fires.