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Effect of the Quasi-Biennial Oscillation on the Madden Julian Oscillation Teleconnections in the Southern Hemisphere

Journal Article · · Geophysical Research Letters
DOI:https://doi.org/10.1029/2021gl096105· OSTI ID:1978521
The Madden Julian Oscillation (MJO) is the main source of intraseasonal variability in the tropics. MJO modulates rainfall in remote areas in the Southern Hemisphere by exciting tropical and extratropical wave trains. We use newly released reanalysis data to analyze how the Quasi-Biennial Oscillation (QBO) can influence the MJO's effects over the Southern Hemisphere, focusing on precipitation anomalies over South America. The anomalies in the intensity of the South Atlantic Convergence Zone (SACZ) and precipitation over Southeastern South America during MJO phases 1 and 4 are intensified during the easterly QBO. The extratropical wave train excited by the anomalous convection over the maritime continent during MJO phase 4 is affected by the QBO, with a stronger, better-defined pattern during westerly QBO. The conclusions are supported by a perturbation experiment of a case study, conducted using a high-top atmospheric global climate model where the QBO and MJO are controlled.
Research Organization:
Univ. of California, Irvine, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
Grant/Contract Number:
SC0019407
OSTI ID:
1978521
Journal Information:
Geophysical Research Letters, Journal Name: Geophysical Research Letters Journal Issue: 6 Vol. 49; ISSN 0094-8276
Publisher:
American Geophysical Union (AGU)Copyright Statement
Country of Publication:
United States
Language:
English

References (34)

The South American rainfall dipole: A complex network analysis of extreme events journal October 2014
The Specified Chemistry Whole Atmosphere Community Climate Model (SC-WACCM) journal August 2014
Atmosphere‐ocean coupled processes in the Madden‐Julian oscillation journal November 2015
The role of the Madden-Julian oscillation on the Amazon Basin intraseasonal rainfall variability journal August 2018
Influence of Madden–Julian Oscillation on extreme rainfall events in Spring in southern Uruguay journal February 2021
The ERA5 global reanalysis journal June 2020
Variation in the Holton–Tan effect by longitude
  • Elsbury, Dillon; Peings, Yannick; Magnusdottir, Gudrun
  • Quarterly Journal of the Royal Meteorological Society, Vol. 147, Issue 736 https://doi.org/10.1002/qj.3993
journal February 2021
Stationary rossby-wave propagation in a baroclinic atmosphere journal April 1997
Madden–Julian Oscillation impacts on South American summer monsoon season: precipitation anomalies, extreme events, teleconnections, and role in the MJO cycle journal January 2019
Madden-Julian Oscillation impacts on tropical African precipitation journal February 2017
Differences in Vertical Structure of the Madden-Julian Oscillation Associated With the Quasi-Biennial Oscillation journal May 2018
Seasonal Evolution of Stratosphere‐Troposphere Coupling in the Southern Hemisphere and Implications for the Predictability of Surface Climate journal November 2018
The Polar Stratosphere as an Arbiter of the Projected Tropical Versus Polar Tug of War journal August 2019
Fifty Years of Research on the Madden‐Julian Oscillation: Recent Progress, Challenges, and Perspectives journal August 2020
The Global Teleconnection Signature of the Madden‐Julian Oscillation and Its Modulation by the Quasi‐Biennial Oscillation journal March 2020
The Role of Atmospheric Drivers in a Sudden Transition of California Precipitation in the 2012/13 Winter journal November 2021
On the emerging relationship between the stratospheric Quasi-Biennial oscillation and the Madden-Julian oscillation journal February 2019
South Pacific Convergence Zone dynamics, variability and impacts in a changing climate journal August 2020
The influence of the quasi-biennial oscillation on the Madden–Julian oscillation journal June 2021
Detection of a 40–50 Day Oscillation in the Zonal Wind in the Tropical Pacific journal July 1971
Description of Global-Scale Circulation Cells in the Tropics with a 40–50 Day Period journal September 1972
The Influence of Coupled Sea Surface Temperatures on the Madden–Julian Oscillation: A Model Perturbation Experiment journal February 1999
Alternating Wet and Dry Conditions over South America during Summer journal February 1997
An All-Season Real-Time Multivariate MJO Index: Development of an Index for Monitoring and Prediction journal August 2004
Joint Diagnostic of the Surface Air Temperature in Southern South America and the Madden–Julian Oscillation journal August 2010
Barrier Effect of the Indo-Pacific Maritime Continent on the MJO: Perspectives from Tracking MJO Precipitation journal May 2017
Circulation Factors Determining the Propagation Speed of the Madden–Julian Oscillation journal April 2020
Madden–Julian Oscillation: Bridging Weather and Climate journal December 2013
The Modern-Era Retrospective Analysis for Research and Applications, Version 2 (MERRA-2) journal July 2017
Influence of the Indian Ocean Dipole on the large-scale circulation in South America journal April 2021
Potential Predictability of Southwest U.S. Rainfall: Role of Tropical and High-Latitude Variability journal March 2022
The Influence of the Stratosphere on the Tropical Troposphere journal January 2021
On the forcings of the unusual Quasi-Biennial Oscillation structure in February 2016 journal June 2020
Surface impacts of the Quasi Biennial Oscillation journal January 2018