Overlord, the cold snap is coming! Audio-visual illustrations of Arctic Oscillation

The strongest cold current in recent years broke out at the weekend. Why is it so cold? Central weather bureau's animated video about the principle of "Arctic Oscillation" tells you why.

Central weather bureau released a special report on low temperature in Taiwan Province. The lowest temperature in Taiwan Province this weekend was only 5 degrees Celsius. This wave of cold current is so fierce that it is described as "overlord cold current". What caused it?

In this animated video produced by the Meteorological Bureau, the original cold Arctic cold air is usually locked near the Arctic Circle and the cold zone by the "polar front jet", which encircles the Arctic cold air like a golden hoop on the Monkey King's head. Once the polar front jet is broken by the arctic cold wind, the cold air mass will rush to the south, forming a "negative arctic oscillation", which is the cause of the 1/23~ 1/25 super cold current.

Audio and video source: CWB of Meteorological Bureau

Starting from the weather phenomena experienced every day, through asking questions, solving doubts, guessing, discussing and experimenting, collect 100 weather problems that are not only daily life but also linked to course learning, and help children solve intractable diseases about weather! Weather 100 q: the strongest picture x-cool experiment cracked 100 incredible meteorological secrets.