Results 81 to 90 of about 8,922 (190)

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

Maintenance of Moisture Anomalies Across Synoptic and Intraseasonal Timescales Over the Indo‐Pacific Warm Pool

open access: yesJournal of Geophysical Research: Atmospheres, Volume 131, Issue 9, 16 May 2026.
Abstract Moisture variability plays a fundamental role in regulating tropical precipitation; however, the mechanisms that sustain moisture anomalies across different timescales remain unclear. This study examines how moisture anomalies are regulated over the Indo‐Pacific warm pool using the column‐integrated moist static energy (CMSE) budget.
S. M. Navarro   +3 more
wiley   +1 more source

Maritime continent aerosols reinforce the MJO propagation barrier under El Niño conditions

open access: yesEnvironmental Research Letters
The Maritime Continent (MC), a critical region for Madden–Julian oscillation (MJO) propagation, is also a global hotspot for biomass burning aerosol emissions.
Meiqiutong Ma   +4 more
doaj   +1 more source

The dynamics of wind-driven intraseasonal variability in the equatorial Indian Ocean [PDF]

open access: yes, 1992
This commentary provides a discussion of the concept of `bounded rationality' as it applies to the theses advanced by Lopes (1991) and Evans (1991). Lopes's (1991) assessment of the irrationalist consequences of Tversky and Kahneman's (1974) work on ...
名倉, 元樹   +3 more
core   +1 more source

Extreme High Temperatures in the Indochina Peninsula and Their Association With Enhanced Convection in the Horn of Africa and Arabian Peninsula During Spring 2023

open access: yesAtmospheric Science Letters, Volume 27, Issue 5, May 2026.
In 2023, the Indochina Peninsula saw record spring heatwaves after a La Niña winter, unlike past events typically following El Niño winters. A “heat dome” pattern drove the extreme high temperatures over the ICP in spring 2023. The heat dome was linked to a Rossby wave train triggered by enhanced convection over the Horn of Africa and the Arabian ...
Baochao Liu   +4 more
wiley   +1 more source

A census of atmospheric variability from seconds to decades [PDF]

open access: yes, 2017
This paper synthesizes and summarizes atmospheric variability on time scales from seconds to decades through a phenomenological census. We focus mainly on unforced variability in the troposphere, stratosphere, and mesosphere.
Alexander, M. Joan   +14 more
core   +3 more sources

Seasonal Variability of Precipitating Systems in Four Radar Domains of Northeast Brazil

open access: yesInternational Journal of Climatology, Volume 46, Issue 6, May 2026.
This study analyzes the climatology and evaluates how the physical aspects of precipitating systems are influenced by the dry and wet seasons in Northeast Brazil, highlighting seasonal variations in the frequency, size, intensity, and duration of these systems in the regions of Natal, Maceió, Petrolina, and Salvador.
Amanda Carolina da Silva Queiroz   +1 more
wiley   +1 more source

Tropical mid-tropospheric CO_2 variability driven by the Madden–Julian oscillation [PDF]

open access: yes, 2010
Carbon dioxide (CO_2) is the most important anthropogenic greenhouse gas in the present-day climate. Most of the community focuses on its long-term (decadal to centennial) behaviors that are relevant to climate change, but there are relatively few ...
Li, King-Fai   +3 more
core  

A delay differential model of ENSO variability, Part 2: Phase locking, multiple solutions, and dynamics of extrema [PDF]

open access: yes, 2010
We consider a highly idealized model for El Nino/Southern Oscillation (ENSO) variability, as introduced in an earlier paper. The model is governed by a delay differential equation for sea surface temperature in the Tropical Pacific, and it combines two ...
Ghil, Michael, Zaliapin, Ilya
core   +5 more sources

Improving Numerical Weather Forecasts of Rainfall Over Central Africa Using a Three‐Dimensional Variational Data Assimilation Technique and the Weather Research and Forecasting Model

open access: yesMeteorological Applications, Volume 33, Issue 3, May/June 2026.
This study evaluates satellite radiance assimilation using the 3DVAR technique within WRFDA to improve rainfall forecasts over Central Africa. Results show modest error reduction and improved spatial organization of rainfall compared to CHIRPS, while atmospheric variables remain comparable with ERA5, highlighting the potential of data assimilation in ...
Taguemfo Kammalac Jores   +3 more
wiley   +1 more source

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