The advantages and disadvantages of cold waves

Benefits of cold waves:

1. Conducive to heat exchange on the earth's surface. Cold waves carry a large amount of cold air toward the tropics, causing large-scale heat exchange on the ground and helping to maintain the ecological balance of nature.

2. When the cold wave invades the south, it often brings widespread rain and snow, which helps alleviate crop drought in winter. The high nitrogen content in snow water can greatly increase the nitrogen in the soil. Heavy snow covers overwintering crops, helping to resist cold and heat preservation. Low temperatures can kill a large number of pests and germs that lurk in the soil over the winter.

3. The cold wave can also bring pollution-free wind resources.

Adverse effects of cold wave.

1. Harm to agriculture. Due to severe cooling, when the temperature drops below 0℃ (freezing point), the plants of overwintering crops will freeze and lose all physiological activities, causing the plants to wither or die. Severe low temperatures can also cause livestock to become sick or freeze to death. Severe strong winds or accompanying snowfall will blow over or crush agricultural facility scaffoldings and livestock pens.

2. Harm to traffic. Strong winds can cause trains to derail or even overturn, can overturn ships, and can also make aircraft susceptible to accidents such as tire rupture and landing gear breakage during takeoff and landing. Rain will threaten the flight safety of aircraft. Freezing phenomena caused by rain and snow, low visibility and low temperatures will have an adverse impact on transportation.

3. Harm to power communications. Freezing rain caused by cold waves can cause rain scum to accumulate on power lines. After the wires freeze, they shrink when exposed to cold. Coupled with the shock caused by strong winds and the weight of raindrops, the wires and communication lines can be crushed under heavy loads, causing interruptions in power transmission and communications.