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

