QBO‐MJO Connection

Chidong Zhang; Bosong Zhang

doi:10.1002/2017jd028171

journal article Mar 23, 2018

QBO‐MJO Connection

Chidong Zhang

Bosong Zhang

Journal of Geophysical Research: Atmospheres Vol. 123 No. 6 pp. 2957-2967 · American Geophysical Union (AGU)

View at Publisher Save 10.1002/2017jd028171

Abstract

AbstractActivities of the Madden‐Julian Oscillation (MJO) in boreal winter has recently been found to be stronger in easterly phases of the stratospheric quasi‐biennial oscillation (QBO) than its westerly phases. This QBO‐MJO connection was investigated in this study using a method that identifies individual MJO events by tracking their eastward propagating signals in precipitation. Stronger MJO activities in QBO easterly phases are a consequence of more MJO days, not larger amplitudes of individual MJO events as previously thought. More MJO days come from more MJO events initiated over the Indian Ocean and their longer duration because of a weaker barrier effect of the Maritime Continent on MJO propagation. Zonal heterogeneity exists in the connection between QBO, MJO, and tropical total precipitation in general. This poses a challenge to our current understanding of the MJO dynamics, which has yet to fully include upper‐tropospheric and stratospheric processes.

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Metrics

90

Citations

39

References

Details

Published: Mar 23, 2018
Vol/Issue: 123(6)
Pages: 2957-2967
License: View

Authors

C

Chidong Zhang

NOAA Pacific Marine Environmental Laboratory Seattle WA USA

B

Bosong Zhang

Rosenstiel School of Marine and Atmospheric Science University of Miami Miami FL USA

Funding

National Science Foundation Award: NA13OAR310161

National Oceanic and Atmospheric Administration

Cite This Article

Chidong Zhang, Bosong Zhang (2018). QBO‐MJO Connection. Journal of Geophysical Research: Atmospheres, 123(6), 2957-2967. https://doi.org/10.1002/2017jd028171

QBO‐MJO Connection

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