Quasi-biennial oscillation
The quasi-biennial oscillation (QBO), is a quasiperiodic oscillation of the equatorial zonal wind between easterlies and westerlies in the tropical stratosphere with a mean period of 28 to 29 months. The alternating wind regimes develop at the top of the lower stratosphere and propagate downwards at about 1 km (0.6 mi) per month until they are dissipated at the tropical tropopause. Downward motion of the easterlies is usually more irregular than that of the westerlies. The amplitude of the easterly phase is about twice as strong as that of the westerly phase. At the top of the vertical QBO domain, easterlies dominate, while at the bottom, westerlies are more likely to be found. At the 30mb level, with regards to monthly mean zonal winds, the strongest recorded easterly was 29.55 m/s in Nov
known for
1999 Atlantic hurricane season2006–07 South-West Indian Ocean cyclone seasonAtmospheric waveClimate change in TuvaluClimate variability and changeGlossary of meteorologyGravity waveIndex of climate change articlesJohn Michael WallaceKrakatoa WindsKrakatoa windsList of astronomy acronymsList of unsolved problems in geoscienceNorth Atlantic oscillationOscillationQBOQuasi-Biennial OscillationQuasi biennial oscillationRichard LindzenStratosphereSudden stratospheric warmingTropical cycloneTropical cyclone forecastingWilliam M. GrayWinter flooding of 2013–14 on the Somerset LevelsWinter of 2009–10 in Europe
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Quasi-biennial oscillation
The quasi-biennial oscillation (QBO), is a quasiperiodic oscillation of the equatorial zonal wind between easterlies and westerlies in the tropical stratosphere with a mean period of 28 to 29 months. The alternating wind regimes develop at the top of the lower stratosphere and propagate downwards at about 1 km (0.6 mi) per month until they are dissipated at the tropical tropopause. Downward motion of the easterlies is usually more irregular than that of the westerlies. The amplitude of the easterly phase is about twice as strong as that of the westerly phase. At the top of the vertical QBO domain, easterlies dominate, while at the bottom, westerlies are more likely to be found. At the 30mb level, with regards to monthly mean zonal winds, the strongest recorded easterly was 29.55 m/s in Nov
has abstract
Die quasi-zweijährige Schwingu ...... orialen Stratosphäre der Erde.
@de
L'oscillazione quasi biennale ...... te di quella della fase ovest.
@it
La oscilación cuasi bienal (ac ...... de 15,62 m/s en junio de 1995.
@es
L’oscillation quasi biennale ( ...... matique sur cette oscillation.
@fr
The quasi-biennial oscillation ...... s only 15.62 m/s in June 1995.
@en
成層圏準2年周期振動(せいそうけんじゅんにねんしゅうきしんど ...... ギリスのR.A. Ebdonによりそれぞれ独立に発見された。
@ja
热带平流层大气的準两年振荡(Quasi-biennial o ...... 影响对流层环流,例如QBO东风位相年利于厄尔尼诺事件的发生。
@zh
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Die quasi-zweijährige Schwingu ...... orialen Stratosphäre der Erde.
@de
L'oscillazione quasi biennale ...... erlies) (indice QBO negativo).
@it
La oscilación cuasi bienal (ac ...... pan en la tropopausa tropical.
@es
L’oscillation quasi biennale ( ...... matique sur cette oscillation.
@fr
The quasi-biennial oscillation ...... easterly was 29.55 m/s in Nov
@en
成層圏準2年周期振動(せいそうけんじゅんにねんしゅうきしんど ...... ギリスのR.A. Ebdonによりそれぞれ独立に発見された。
@ja
热带平流层大气的準两年振荡(Quasi-biennial o ...... 影响对流层环流,例如QBO东风位相年利于厄尔尼诺事件的发生。
@zh
label
Oscilación cuasi bienal
@es
Oscillation quasi biennale
@fr
Oscillazione quasi biennale
@it
Quasi-biennial oscillation
@en
Quasi-zweijährige Schwingung
@de
准两年振荡
@zh
成層圏準2年周期振動
@ja