AustralieFrV1, Main, Exploration, bibRecord, 00A542

Multi-decadal variability of rainfall and streamflow across eastern Australia

Identifieur interne : 00A542 ( Main/Exploration ); précédent : 00A541; suivant : 00A543

Multi-decadal variability of rainfall and streamflow across eastern Australia

Auteurs : Danielle C. Verdon [Australie] ; Adam M. Wyatt [Australie] ; Anthony S. Kiem [Australie] ; Stewart W. Franks [Australie]

Source :

IAHS-AISH publication [ 0144-7815 ] ; 2005.

RBID : Pascal:05-0305480

Descripteurs français

Pascal (Inist)
- Australie, Nouvelle Galles du Sud, Précipitation atmosphérique, Pluie, Ecoulement cours eau, El Nino, Oscillation, Océan Pacifique, Variabilité climatique, ENSO, La Nina.
Wicri :
- geographic : Australie.
- topic : Océan Pacifique.

English descriptors

KwdEn :
- Australia, El Nino, New South Wales, Pacific Ocean, atmospheric precipitation, oscillations, rainfall, streamflow.

Abstract

This study investigates the influence of the El Niño/Southern Oscillation (ENSO) and the Interdecadal Pacific Oscillation (IPO) on rainfall and streamflow regimes of eastern Australia. An analysis of historical rainfall and streamflow data for Queensland (QLD), New South Wales (NSW) and Victoria (VIC) reveals strong relationships between these indices and seasonal rainfall and streamflow totals. Rainfall and streamflow in NSW and QLD are shown to be significantly enhanced during the La Niña phase of ENSO, with La Niña impacts diminishing as one moves south into VIC. In addition, the study shows that on a multi-decadal time scale, the negative phase of the IPO is associated with "wetter" conditions than the positive phase. Importantly, the already enhanced La Niña rainfall and streamflow is demonstrated to be even further magnified during La Niña events that occur in the IPO negative phase. The results also indicate that some useful predictability of ENSO impacts can be achieved during the negative phase of the IPO for VIC.

Affiliations:

Australie

Links toward previous steps (curation, corpus...)

to stream PascalFrancis, to step Corpus: 004887
to stream PascalFrancis, to step Curation: 001816
to stream PascalFrancis, to step Checkpoint: 004498
to stream Main, to step Merge: 00B148
to stream Main, to step Curation: 00A542

Le document en format XML

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<front><div type="abstract" xml:lang="en">This study investigates the influence of the El Niño/Southern Oscillation (ENSO) and the Interdecadal Pacific Oscillation (IPO) on rainfall and streamflow regimes of eastern Australia. An analysis of historical rainfall and streamflow data for Queensland (QLD), New South Wales (NSW) and Victoria (VIC) reveals strong relationships between these indices and seasonal rainfall and streamflow totals. Rainfall and streamflow in NSW and QLD are shown to be significantly enhanced during the La Niña phase of ENSO, with La Niña impacts diminishing as one moves south into VIC. In addition, the study shows that on a multi-decadal time scale, the negative phase of the IPO is associated with "wetter" conditions than the positive phase. Importantly, the already enhanced La Niña rainfall and streamflow is demonstrated to be even further magnified during La Niña events that occur in the IPO negative phase. The results also indicate that some useful predictability of ENSO impacts can be achieved during the negative phase of the IPO for VIC.</div>
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Serveur d'exploration sur les relations entre la France et l'Australie

Multi-decadal variability of rainfall and streamflow across eastern Australia

Multi-decadal variability of rainfall and streamflow across eastern Australia

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri