Results 81 to 90 of about 17,552 (267)

Tropical variability simulated in ICON-A with a spectral cumulus parameterization [PDF]

open access: yes, 2020
We implemented a spectral cumulus parameterization based on a cloud-resolving model (SC scheme) in the icosahedral nonhydrostatic atmospheric model (ICON-A).
Baba, Y., Giorgetta, M.
core   +2 more sources

Diversity of the Global Teleconnections Associated with the Madden–Julian Oscillation

open access: yesJournal of Climate, 2021
A recent study has revealed that the Madden–Julian oscillation (MJO) during boreal winter exhibits diverse propagation patterns that consist of four archetypes: standing MJO, jumping MJO, slow eastward propagating MJO, and fast eastward propagating MJO ...
Guosen Chen
semanticscholar   +1 more source

Potential Vorticity of the Madden–Julian Oscillation

open access: yesJournal of the Atmospheric Sciences, 2012
Abstract This study explores the extent to which the dynamical structure of the Madden–Julian oscillation (MJO), its evolution, and its connection to diabatic heating can be described in terms of potential vorticity (PV). The signature PV structure of the MJO is an equatorial quadrupole of cyclonic and anticyclonic PV that tilts westward
Jian Ling, Chidong Zhang
openaire   +1 more source

Spatial and temporal variability of wet spells and their role in wet and dry summers and winters in Australia

open access: yesQuarterly Journal of the Royal Meteorological Society, EarlyView.
The change in the frequency of wet spells in tropical Australia in summer primarily contributes to the change in precipitation between wet and dry years. In the extratropics, both the frequency and intensity of wet spells are important, especially in winter.
Sunil Pariyar   +4 more
wiley   +1 more source

Real-time localised forecasting of the Madden-Julian Oscillation using neural network models [PDF]

open access: yes, 2009
Existing statistical forecast models of the Madden-Julian Oscillation (MJO) are generally of very low order and predict the evolution of a small number (typically two) of principal components (PCs).
Alexander   +28 more
core   +1 more source

The relationship between seasonal mean temperature and most extreme day

open access: yesQuarterly Journal of the Royal Meteorological Society, EarlyView.
In Northern Hemisphere winter, there is a strong correlation between seasonal mean temperature and coldest daily mean temperature which varies in magnitude from one region to another (with a weaker relationship in summer between mean and hottest day).
Anna Maidens   +3 more
wiley   +1 more source

Vertical structure and diabatic processes of the Madden-Julian oscillation [PDF]

open access: yes, 2016
The “Vertical Structure of Diabatic Processes of the Madden-Julian Oscillation” global-model evaluation project developed a novel experimental framework, which produces a complete characterization of models’ abilities to simulate the Madden-Julian ...
Jiang, Xianan   +5 more
core   +1 more source

Influence of Indian Ocean Tropical Cyclones on the Development of the Madden‐Julian Oscillation in December 2011

open access: yesGeophysical Research Letters
Previous studies demonstrate that the Madden‐Julian Oscillation (MJO) modulates tropical cyclone (TC) activity over various locations worldwide. Since TCs are associated with anomalous large‐scale circulations, they can influence the development of the ...
Suyang Pei, Toshiaki Shinoda
doaj   +1 more source

On the Relationship Between the Madden‐Julian Oscillation and the Hadley and Walker Circulations

open access: yesJournal of Geophysical Research: Atmospheres, 2021
This study investigates: (i) how the local meridional (Hadley) and zonal (Walker) circulations change in each phase of the Madden‐Julian Oscillation (MJO); and (ii) the effect of enhanced and suppressed MJO‐related convection on the poleward extent of ...
J. Schwendike   +3 more
semanticscholar   +1 more source

The characteristics of squall lines in the Southeast Asia region

open access: yesQuarterly Journal of the Royal Meteorological Society, EarlyView.
Squall lines over the Maritime Continent were analysed using 20 years of IMERG GPM data and classified into four regional clusters. Significant regional differences were found in their size, intensity, lifespan, and propagation. Nighttime squall lines are primarily driven by the convergence of opposing offshore flows and the convergence of monsoonal ...
Jeong‐Yik Diong   +3 more
wiley   +1 more source

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