Journal article

Understanding the role of sea surface temperature-forcing for variability in global temperature and precipitation extremes

Andrea J Dittus, David J Karoly, Markus G Donat, Sophie C Lewis, Lisa V Alexander

Weather and Climate Extremes | Elsevier | Published : 2018

Abstract

The oceans are a well-known source of natural variability in the climate system, although their ability to account for inter-annual variations of temperature and precipitation extremes over land remains unclear. In this study, the role of sea-surface temperature (SST)-forcing is investigated for variability and trends in a range of commonly used temperature and precipitation extreme indices over the period 1959 to 2013. Using atmospheric simulations forced by observed SST and sea-ice concentrations (SIC) from three models participating in the Climate of the Twentieth Century Plus (C20C+) Project, results show that oceanic boundary conditions drive a substantial fraction of inter-annual varia..

View full abstract

University of Melbourne Researchers

Grants

Awarded by Australian Research Council


Funding Acknowledgements

Authors are supported by Australian Research Council grant CE110001028. AJD also acknowledges the David Lachlan Hay Memorial Fund. SCL is supported by Australian Research Council Grant DE160100092. MGD is supported by Australian Research Council Grant DE150100456. LVA is supported by Australian Research Council Grant DP160103439.