Impact of atmospheric circulation on the rainfall-temperature relationship in Australia
Bhavik Magan, Seokhyeon Kim, Conrad Wasko, Renaud Barbero, Vincent Moron, Rory Nathan, Ashish Sharma
ENVIRONMENTAL RESEARCH LETTERS | IOP PUBLISHING LTD | Published : 2020
Anthropogenic climate change is leading to the intensification of extreme rainfall due to an increase in atmospheric water holding capacity at higher temperatures as governed by the Clausius-Clapeyron (C-C) relationship. However, the rainfall-temperature sensitivity (termed scaling) often deviates from the C-C relationship. This manuscript uses classifications prescribed by regional-scale atmospheric circulation patterns to investigate whether deviations from the C-C relationship in tropical Australia can be explained by differing weather types (WT). We show that the rainfall-temperature scaling differs depending on the WTs, with the difference increasing with rainfall magnitude. All monsoon..View full abstract
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Awarded by Australian Research Council
This work has been undertaken as part of a Discovery Project (DP200101326, Assessing Water Supply Security in a Nonstationary Environment) funded by the Australian Research Council. Climate data was obtained from the Australian Bureau of Meteorology and can be found at www.bom.gov.au/climate/.Weather types are available on request from the authors. Conrad Wasko receives funding from the University of Melbourne McKenzie Postdoctoral Fellowships Program.