Definition of Arctic Oscillation
climatology
: the recurring movement of high pressure systems in the atmosphere from the middle latitudes to the polar latitudes and back
—abbreviation AO
— compare north atlantic oscillation, southern oscillation
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“Arctic Oscillation.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Arctic%20Oscillation. Accessed 9 May. 2021.
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The first known use of Arctic Oscillation was in 1998
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