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Alternative TitleQuasi-16-day Planetary Waves during Sudden Stratospheric Warming Event
朱露; 姜国英; 徐寄遥; 陈金松; 胡连欢; 宁百齐
Source Publication空间科学学报
Keyword准16日行星波 平流层爆发性增温 中间层-低热层大气
Other AbstractA minor Sudden Stratospheric Warming (SSW) event occurred in the early and middle January of 2014. The amplitude of increasing temperature was about 25 K, and the zonal eastward wind became weaker and shifted its direction until the early February. The Planetary Waves (PW) play an important role in SSW events. Using the wind data detected by 5 meteor radars at low and middle latitude of northern hemisphere near 120°E, the PWs during this minor SSW event are studied. Results show that the enhanced quasi-16-day PW is found at Mesosphere and Lower Thermosphere (MLT) region. The enhancement of quasi-16-day waves was prior to the warming, and the quasi-16-day PW had mostly the strongest amplitude when the polar temperature reached its peak. This demonstrates the coupling between PW of low and middle latitude MLT region and SSW. Furthermore, using the reanalysis data from the European Center for Medium-range Weather Forecasts (ECMWF), the wave coupling between stratosphere and mesosphere is investigated. The band pass filtering result of the stratospheric temperature shows that quasi-16-day PW propagated from lower latitude to the pole, meanwhile the zero-wind line moved from low latitude to high latitude, The results indicate a dynamical connection between the 16-day PWs and SSW.
Indexed ByCSCD
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Cited Times:2[CSCD]   [CSCD Record]
Document Type期刊论文
Recommended Citation
GB/T 7714
朱露,姜国英,徐寄遥,等. 平流层爆发性增温事件中大气准16日行星波[J]. 空间科学学报,2017,37(4):432-441.
APA 朱露,姜国英,徐寄遥,陈金松,胡连欢,&宁百齐.(2017).平流层爆发性增温事件中大气准16日行星波.空间科学学报,37(4),432-441.
MLA 朱露,et al."平流层爆发性增温事件中大气准16日行星波".空间科学学报 37.4(2017):432-441.
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