Skip to main content
Ir a la página de inicio de la Comisión Europea (se abrirá en una nueva ventana)
español es
CORDIS - Resultados de investigaciones de la UE
CORDIS
Contenido archivado el 2024-06-16

Exploring the influence of intraseasonal oscillations on the climate variability in the Indo-Pacific sector during boreal summer

Objetivo

The sub seasonal activity in the Indo-Pacific region is dominated by the Madden-Julian Oscillation (MJO), which can be defined as a 30-50-day oscillation that moves eastward from at least the Indian Ocean to the Central Pacific Ocean. This intraseasonal oscillation organizes convection on a regional scale and, by modulation of the strength and position of the main tropical heat source, is thought to strongly influence large-scale climatic phenomena, such as the Asian Summer Monsoon (ASM) and the El Nina Southern Oscillation (ENSO). The aim of this project is to identify the mechanisms in this suggested relationship with a focus on the boreal summer season. To that end, we will first analyse the evolution of the coupled Indo-Pacific system during the summer of 2002, which provides an unprecedented example illustrating the influence of the MJO on the ASM and ENSO. The analysis of recent high-quality observational data sets and various sensitivity experiments with forced ocean and atmosphere General Circulation Models (Gems) will allow us to identify the major intraseasonal patterns and build hypotheses on the mechanisms that could link these patterns with the ASM and ENSO. In the second phase, high-resolution coupled Gems will be used to confirm the previous suggested mechanisms and generalize the 2002 case study to various other large-scale Indo-Pacific conditions. An improved understanding of the influence of the intraseasonal activity in the Indo-Pacific sector will have implications in terms of predictability. Indeed, confirmation of the role of intraseasonal forcing on the development of ENSO and ASM activity may imply a limit to long-term predictability of these large-scale phenomena.

Ámbito científico (EuroSciVoc)

Palabras clave

Tema(s)

Convocatoria de propuestas

FP6-2002-MOBILITY-5
Consulte otros proyectos de esta convocatoria

Régimen de financiación

EIF - Marie Curie actions-Intra-European Fellowships

Coordinador

UNIVERSITY OF READING.
Aportación de la UE
Sin datos
Dirección
Whiteknights House, Whiteknights
READING
Reino Unido
Coste total
Sin datos