Journal article

Long-term stationarity of El Nino-Southern Oscillation teleconnections in southeastern Australia

Linden Ashcroft, Joelle Gergis, David John Karoly

Climate Dynamics | Springer (part of Springer Nature) | Published : 2016

Abstract

The El Niño–Southern Oscillation (ENSO) phenomenon plays a large role in the modulation of Aaustralian rainfall, particularly in the highly populated southeast. However, this influence is not stationary over time: weak ENSO teleconnections in Australia have been identified during 1920–1950, and palaeoclimate reconstructions indicate that a breakdown in global ENSO teleconnections may have also occurred in the early to mid-1800s. A lack of long-term instrumental data has prevented detailed examination of this intriguing earlier period. This study uses newly recovered instrumental rainfall observations to determine whether the weakening of ENSO teleconnections in the nineteenth century is appa..

View full abstract

Grants

Awarded by Australian Research Council (ARC) Linkage Project


Awarded by ARC fellowship


Funding Acknowledgements

This study was conducted as part of the South Eastern Australian Recent Climate History (SEARCH) project, supported by the Australian Research Council (ARC) Linkage Project LP0990151. LA and DK were also supported by the ARC Centre of Excellence for Climate System Science, and JG acknowledges funding from ARC fellowship DE130100668. We thank Blair Trewin, Claire Fenby, Ailie Gallant and three anonymous reviewers for advice that helped improve this manuscript.