#文章首发挑战赛#
Recently, the mainland ushered in two rounds of cold waves before New Year's Day, accompanied by the sweep of cold air, rain and snow have arrived, and the temperature has dropped sharply, which has attracted widespread attention.
Some experts pointed out that the intensity and frequency of cold air in this cold wave are rare, and it is even called a rare cold winter in 60 years, which has brought certain inconvenience to people's lives and travel.
The first round of cold spell Cold air is here
The first round of cold air hit the northern part of the mainland around December 27, mainly affecting eastern Inner Mongolia, northern North China and most of Northeast China.
This time, the cold air was dominated by dry winds, and northerly winds of level 4~6 blew through this area, causing the temperature to drop sharply. There was even a drop of more than 8 degrees Celsius locally, which made people sigh at the strength of this cold air.
The north wind is biting and cold air continues to sweep
Under the influence of the first round of cold waves, most areas in northern and northeastern China have been significantly cooled. The northerly wind of level 4~6 is biting, which makes the local residents feel bitterly cold.
The dry nature of the cold air also makes the sky blue and sunny, but this does not hide the fact that it is bitterly cold. Citizens have bought warm clothes and strengthened cold protection measures to welcome this rare cold winter.
The second cold wave brings stronger cold air
From December 30th to New Year's Day, the second round of cold air struck again, and this time the intensity was even more shocking. The cold wave brought cold snaps from north to south, and the central and eastern regions once again faced the test of strong winds and cooling.
The temperature in most areas dropped by 4~8 degrees Celsius, and the weather was unusually cold. Such cold weather has been a rare sight in some areas for many years, and has aroused great concern from all walks of life.
For this rare cold winter, meteorological experts have made a detailed interpretation. They said that the frequent and intense cold wave of cold air is due to the abnormal atmospheric circulation pattern, and the continuous influence of the Mongolian high pressure has caused the cold air to continue southward. This has been relatively rare in the past 60 years, and has therefore led to the occurrence of cold winters.
In this time of frequent cold spells, we can use agricultural proverbs to better understand and respond to changes in the weather. The agricultural proverbs about meteorology inherit the observation and summary of nature by the ancients, and have certain enlightenment for us to understand the laws of weather.
- "It's a little cold and a big cold, and it's cold to the year. This agricultural proverb means that between the small cold and the big cold solar terms, the temperature will continue to be cold. This year's cold winter seems to match the description of this agricultural proverb, and the weather is more common.
- "It's cold rain and fog on sunny days. This agricultural proverb implies that rainy weather brings more cold after it, and fog tends to form on sunny days. There is some similarity to the drop in temperatures after a cold spell.
In this winter, when cold waves are frequent, citizens should always be sensitive to weather changes and be prepared to keep warm at all times to avoid colds and other diseases. In addition, it is necessary to pay attention to safety when traveling, especially in windy and snowy weather, reduce unnecessary outings, and ensure the safety of people and property. I hope that on the occasion of the arrival of the Lunar New Year, the weather will gradually warm up and bring a warm and happy festival to everyone.
What's the weather like in your city?