Results 51 to 60 of about 17,552 (267)

An Analysis of Anomalous Winter and Spring Tornado Frequency by Phase of the El Niño/Southern Oscillation, the Global Wind Oscillation, and the Madden-Julian Oscillation

open access: yesAdvances in Meteorology, 2018
Winter and spring tornado activity tends to be heightened during the La Niña phase of the El Niño/Southern Oscillation and suppressed during the El Niño phase.
Todd W. Moore   +2 more
doaj   +1 more source

Atmospheric response to observed intraseasonal tropical sea surface temperature anomalies [PDF]

open access: yes, 2004
The major tropical convective and circulation features of the intraseasonal or Madden-Julian Oscillation (MJO) are simulated as a passive response to observed MJO sea surface temperature (SST) anomalies in an atmospheric general circulation model (AGCM),
Adrian J. Matthews   +23 more
core   +1 more source

Drivers of uncertainty in future projections of Madden–Julian Oscillation teleconnections [PDF]

open access: yesWeather and Climate Dynamics, 2021
Teleconnections from the Madden–Julian Oscillation (MJO) are a key source of predictability of weather on the extended timescale of about 10–40 d. The MJO teleconnection is sensitive to a number of factors, including the mean dry static stability, the ...
A. M. Jenney   +3 more
doaj   +1 more source

Does the Madden-Julian Oscillation influence aerosol variability? [PDF]

open access: yes, 2008
We investigate the modulation of aerosols by the Madden-Julian Oscillation (MJO) using multiple, global satellite aerosol products: aerosol index (AI) from the Total Ozone Mapping Spectrometer (TOMS) on Nimbus-7, and aerosol optical thickness (AOT) from ...
Geogdzhayev, Igor V.   +9 more
core   +1 more source

Modulation of the Westerly and Easterly Quasi-Biennial Oscillation Phases on the Connection between the Madden–Julian Oscillation and the Arctic Oscillation

open access: yesAtmosphere, 2020
Previous studies have revealed the relationship between the Madden−Julian oscillation (MJO) and the Arctic Oscillation (AO). The MJO phase 2/3 is followed by the positive AO phase, and the MJO phase 6/7 is followed by the negative AO phase.
Lei Song, Renguang Wu
doaj   +1 more source

Circulation Factors Determining the Propagation Speed of the Madden–Julian Oscillation

open access: yesJournal of Climate, 2020
The eastward propagating Madden–Julian oscillation (MJO) events exhibit various speeds ranging from 1 to 9 m s−1, but what controls the propagation speed remains elusive. This study attempts to address this issue. It reveals that the Kelvin wave response
Guosen Chen, Bin Wang
semanticscholar   +1 more source

Modulation of Polar Low Activity by the Madden‐Julian Oscillation

open access: yesGeophysical Research Letters, 2023
The impacts of the Madden‐Julian Oscillation (MJO) on polar low (PL) activity are examined. We found that PL frequency increases over the Irminger Sea and decreases over the Norwegian‐Barents Seas following the MJO Phases 2–4, and nearly opposite changes
Zhuo Wang, Kevin Boyd, John E. Walsh
doaj   +1 more source

Atmospheric River Lifecycle Responses to the Madden‐Julian Oscillation

open access: yesGeophysical Research Letters, 2021
We investigate how the Madden‐Julian Oscillation (MJO), the dominant mode of tropical subseasonal variability, modulates the lifecycle of cool‐season North Pacific atmospheric rivers (ARs). When the enhanced (suppressed) convection center is located over
Yang Zhou, Hyemi Kim, D. Waliser
semanticscholar   +1 more source

Vertical Heating Structures Associated with the MJO as Characterized by TRMM Estimates, ECMWF Reanalyses, and Forecasts: A Case Study during 1998/99 Winter [PDF]

open access: yes, 2009
The Madden–Julian oscillation (MJO) is a fundamental mode of the tropical atmosphere variability that exerts significant influence on global climate and weather systems.
Grecu, Mircea   +10 more
core   +1 more source

The Madden–Julian Oscillation in CCSM4

open access: yesJournal of Climate, 2011
Abstract This study assesses the ability of the Community Climate System Model, version 4 (CCSM4) to represent the Madden–Julian oscillation (MJO), the dominant mode of intraseasonal variability in the tropical atmosphere. The U.S. Climate Variability and Predictability (CLIVAR) MJO Working Group’s prescribed diagnostic tests are used to
Subramaian, A.C.   +5 more
openaire   +1 more source

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