Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/112782
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Type: Journal article
Title: Temperature-extreme precipitation scaling: a two-way causality?
Author: Barbero, R.
Westra, S.
Lenderink, G.
Fowler, H.
Citation: International Journal of Climatology, 2018; 38(S1):e1274-e1279
Publisher: Wiley
Issue Date: 2018
ISSN: 0899-8418
1097-0088
Statement of
Responsibility: 
R. Barbero, S. Westra, G. Lenderink and H.J. Fowler
Abstract: Extreme precipitation events are widely thought to intensify in a warmer atmosphere through the Clausius-Clapeyron equation. The temperature-extreme precipitation scaling was proposed to analyse the temperature dependency of short-duration extreme precipitation and since then, the concept has been widely used in climatology. Bao et al. (2017) suggest that the apparent scaling reflects not only how surface air properties affect extreme precipitation, but also reflects how synoptic conditions and localized cooling due to the storm itself affect the scaling – implying two-way causality. We address here critical issues of this paper and provide evidence that dew point temperature drives extreme precipitation, with the direction of causality reversed only for the storm’s peak intensity. This physical inference may serve as a basis to better quantify scaling rates and to help establish the relationship between extreme precipitation and environmental conditions in the current climate, and thereby provide insights into future changes to precipitation extremes due to climate change.
Keywords: Precipitation extreme; temperature-extreme precipitation scaling; dew point temperature; Australia; climate change
Rights: © 2017 Royal Meteorological Society
RMID: 0030079425
DOI: 10.1002/joc.5370
Grant ID: http://purl.org/au-research/grants/arc/DP150100411
Appears in Collections:Civil and Environmental Engineering publications

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