What are the benefits of cold wave?

The cold wave contributes to the heat exchange on the earth's surface.

With the increase of latitude, the energy received by the earth from solar radiation gradually weakens, so the earth forms tropical, temperate and cold zones. The cold wave injects a large amount of cold air into the tropical region, which makes the ground exchange heat on a large scale, which is very helpful to maintain the ecological balance of nature and maintain the prosperity of species. ?

Cold wave is the guarantee of good weather. Affected by monsoon, China has a dry winter climate, which is a dry season. However, whenever a cold wave invades the south, it often brings a wide range of rain and snow, which alleviates the drought in winter and benefits crops. ?

Experts in crop pest control believe that the low temperature brought by the cold wave is the most effective natural "insecticide" at present, which can kill a large number of pests and germs lurking in the soil for the winter, or inhibit their reproduction and reduce pests and diseases in the coming year.

The cold wave can also bring wind resources, and the power generation efficiency during the cold wave is 1.5 times of the usual one. The influence range of cold wave can reach several hundred kilometers to several Qian Qian meters from east to west, but its thickness is generally only two or three kilometers. The moving speed of cold wave is tens of thousands of meters per hour, which is similar to the speed of train.

Extended data:

Matters needing attention when the cold wave comes:

1. When the temperature drops suddenly, pay attention to add clothes to keep warm, especially the hands and face.

2. Close the doors and windows and fix the outdoor structure.

Be careful when you go out.

4. Elderly and frail patients, especially people who are sensitive to temperature changes such as cardiovascular patients and asthma patients, should try not to go out.

5, pay attention to rest, don't be too tired.

6. Families who use coal stoves for heating should be alert to gas poisoning.

7, should strengthen the weather forecast, release accurate cold wave news or alarm in advance.

8. Issue accurate cold wave news or alarm so that ships at sea can return in time.

9. Prepare crops and herds for the cold in advance.

Baidu encyclopedia-cold wave