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Association between Australian rainfall and the Southern Annular Mode

International Journal of Climatology, 2006
AbstractIn this study, we explore the relationships between seasonal Australian rainfall and the Southern Annular Mode (SAM). We produce two seasonal indices of the SAM: the Antarctic Oscillation Index (AOI), and an Australian regional version (AOIR) using ERA‐40 mean sea‐level pressure (MSLP) reanalysis data.
Belinda Meneghini   +2 more
openaire   +1 more source

Coupled Ocean–Atmosphere Feedback in the Southern Annular Mode

Journal of Climate, 2007
Abstract Previous studies have demonstrated that while the Southern Annular Mode (SAM) is an intrinsic feature of the atmosphere, it projects strongly onto the ocean and sea ice properties and circulation. This study investigates the extent of “back interaction” whereby these oceanic SAM anomalies feed back to the atmosphere.
Matthew H. England, Alexander Sen Gupta
openaire   +1 more source

On the Origin of the Solar Cycle Modulation of the Southern Annular Mode

Journal of Geophysical Research: Atmospheres, 2018
AbstractThe Southern Annular Mode (SAM) is the dominant hemisphere‐scale mode of variability in the Southern Hemisphere. Analysis of the European Centre for Medium‐range Weather Forecasts Reanalysis data set (ERA‐Interim) for 1979–2015 shows that stratospheric variability associated with the October–November mean SAM index is modulated in synchrony ...
openaire   +1 more source

Multiple time scales of the southern annular mode

Climate Dynamics, 2022
Qiuyan Zhang, Yang Zhang, Zhaohua Wu
openaire   +1 more source

An evaluation of the Southern Annular Mode in the Twentieth Century Reanalysis

We explore whether improvements to the Twentieth Century Reanalysis (20CR) in the most recent version (v3) have improved representation of the Southern Annular Mode (SAM).  The negative SAM index bias in the first half of the 20th century compared to instrumental SAM reconstructions in previous 20CR versions (due to a systematic high latitude ...
Julie Jones   +6 more
openaire   +1 more source

Association between Australian rainfall and the Southern Annular Mode

International Journal of Climatology, 2007
Ian Simmonds
exaly  

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