Exploring aerosol effects on rainfall for Brisbane, Australia

Hewson, Michael, McGowan, Hamish, Phinn, Stuart, Peckham, Steven and Grell, Georg (2013) Exploring aerosol effects on rainfall for Brisbane, Australia. Climate, 1 3: 120-147. doi:10.3390/cli1030120

Author Hewson, Michael
McGowan, Hamish
Phinn, Stuart
Peckham, Steven
Grell, Georg
Title Exploring aerosol effects on rainfall for Brisbane, Australia
Journal name Climate   Check publisher's open access policy
ISSN 2225-1154
Publication date 2013-12-01
Sub-type Article (original research)
DOI 10.3390/cli1030120
Open Access Status DOI
Volume 1
Issue 3
Start page 120
End page 147
Total pages 28
Place of publication Basel, Switzerland
Publisher M D P I
Language eng
Formatted abstract
The majority of studies assessing aerosol effects on rainfall use coarse spatial scale (1° latitude/longitude or more) and multi-seasonal or decadal data sets. Here, we present results from a spatial correlation of aerosol size distribution and rain rate for selected stratiform and cumuliform precipitation events. The chemistry transport version of the Weather Research and Forecasting model was used to estimate aerosol parameters during rain events Aerosol maps were then compared with observations of rainfall using geostatistics for the first time. The cross-variogram analysis showed that anthropogenic aerosol was associated with areas of less intense rain within the stratiform system studied. For cumuliform systems, cross-variogram analysis found that anthropogenic emissions may be associated with enhanced rain downwind of aerosol emissions. We conclude that geostatistics provides a promising new technique to investigate relationships between aerosols and rainfall at spatial scales of 1 km which complements more commonly used methods to study aerosol effects on rainfall.
Keyword Natural and anthropogenic emission
Spatial analysis
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes This article belongs to the Special Issue "Emission Impacts on Aerosol-Climate Feedbacks".

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Geography, Planning and Environmental Management Publications
Official 2014 Collection
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Created: Tue, 29 Oct 2013, 20:19:08 EST by Michael Hewson on behalf of School of Geography, Planning & Env Management