| 单词 | north atlantic oscillation |
| 释义 | > as lemmasNorth Atlantic Oscillation North Atlantic Oscillation n. Climatology a non-periodic variation in surface atmospheric pressure over the North Atlantic, associated with permanent regions of low pressure over Iceland and high pressure over the Azores, which affects winter weather patterns in Europe and eastern North America; an index of this, which is positive when the pressure difference between the two regions is great, and negative when it is less marked.A positive index is correlated with strong westerlies across mid-latitudes, mild, wet winters in northern Europe and the eastern United States, and dry winters in southern Europe and northern Canada.extracted from North Atlanticn.< as lemmas |
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