[ˈɑːktɪk ˌɒsɪˈleɪʃ(ə)n]

Arctic-Oscillation refers to the atmospheric circulation pattern that occurs in the Northern Hemisphere, particularly in the Arctic region. It is characterized by fluctuations in air pressure and wind patterns that can greatly influence weather conditions and climate.

Pronunciation: [ˈɑːktɪk ˌɒsɪˈleɪʃ(ə)n]

Usage: The Arctic-Oscillation is a key factor in understanding and predicting weather patterns in the Northern Hemisphere.

Example Sentences:

1. The recent changes in the Arctic-Oscillation have led to unusually warm temperatures in the northern regions.

最近北半球气候振荡的变化导致了北部地区异常温暖的气温。

2. The Arctic-Oscillation index is used by meteorologists to track and monitor changes in atmospheric circulation.

气象学家使用北极振荡指数来追踪和监测大气环流的变化。

3. The strength of the Arctic-Oscillation can greatly impact the severity of winter storms in certain regions.

北极振荡的强弱可以极大地影响某些地区冬季风暴的严重程度。

4. A positive Arctic-Oscillation index indicates stronger westerly winds, while a negative index suggests weaker winds and a higher likelihood of cold outbreaks.

正值北极振荡指数表明西风更强劲，而负值则意味着风力较弱，更容易出现寒流。

5. The Arctic-Oscillation has a significant impact on sea ice extent and melting rates in the Arctic region.

北极振荡对北极地区海冰范围和融化速度有着重大影响。

Synonyms: Arctic Oscillation, AO

Summary:

The Arctic-Oscillation is an important atmospheric circulation pattern in the Northern Hemisphere that can greatly influence weather conditions and climate. It is characterized by fluctuations in air pressure and wind patterns and is closely monitored by meteorologists to predict changes in weather patterns. Its impact on sea ice extent and melting rates in the Arctic region make it a key factor in understanding climate change.