noun
Arctic oscillation
A climate pattern characterized by pressure differences between the Arctic and mid-latitudes. Used in meteorology and climate science.
北極振動が負の時、日本は寒冬になりやすい。
When the Arctic oscillation is negative, Japan tends to have cold winters.
Compound of 北極 (ほっきょく, 'Arctic') and 振動 (しんどう, 'oscillation'). The term is a direct translation of the English 'Arctic oscillation'.