Local sea surface temperatures add to extreme precipitation in northeast Australia during La Niña
Identifieur interne : 000571 ( Istex/Checkpoint ); précédent : 000570; suivant : 000572Local sea surface temperatures add to extreme precipitation in northeast Australia during La Niña
Auteurs : Jason P. Evans [Australie] ; Irène Boyer-Souchet [France]Source :
- Geophysical Research Letters [ 0094-8276 ] ; 2012-05-28.
Descripteurs français
- Wicri :
- topic : Simulation.
English descriptors
- KwdEn :
- Australian rainfall, Climate change research centre, December, December ssts, Eastern australia, Eastern queensland, Extreme precipitation, Extreme rainfall, High ssts, Interim report, Many rivers, National climate centre, Nicholls, Northeast australia, Northern australia, Precipitation, Precipitation distribution, Queensland, Queensland floods commission, Queensland government, Rainfall, Satellite record, Simulation, Southern oscillation, Ssts, Surface temperatures, Time series.
- Teeft :
- Australian rainfall, Climate change research centre, December, December ssts, Eastern australia, Eastern queensland, Extreme precipitation, Extreme rainfall, High ssts, Interim report, Many rivers, National climate centre, Nicholls, Northeast australia, Northern australia, Precipitation, Precipitation distribution, Queensland, Queensland floods commission, Queensland government, Rainfall, Satellite record, Simulation, Southern oscillation, Ssts, Surface temperatures, Time series.
Abstract
This study examines the role played by high sea surface temperatures around northern Australia, in producing the extreme precipitation which occurred during the strong La Niña in December 2010. These extreme rains produced floods that impacted almost 1,300,000 km2, caused billions of dollars in damage, led to the evacuation of thousands of people and resulted in 35 deaths. Through the use of regional climate model simulations the contribution of the observed high sea surface temperatures to the rainfall is quantified. Results indicate that the large‐scale atmospheric circulation changes associated with the La Niña event, while associated with above average rainfall in northeast Australia, were insufficient to produce the extreme rainfall and subsequent flooding observed. The presence of high sea surface temperatures around northern Australia added ∼25% of the rainfall total.
Url:
DOI: 10.1029/2012GL052014
Affiliations:
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These extreme rains produced floods that impacted almost 1,300,000 km2, caused billions of dollars in damage, led to the evacuation of thousands of people and resulted in 35 deaths. Through the use of regional climate model simulations the contribution of the observed high sea surface temperatures to the rainfall is quantified. Results indicate that the large‐scale atmospheric circulation changes associated with the La Niña event, while associated with above average rainfall in northeast Australia, were insufficient to produce the extreme rainfall and subsequent flooding observed. The presence of high sea surface temperatures around northern Australia added ∼25% of the rainfall total.</div></front></TEI><affiliations><list><country><li>Australie</li><li>France</li></country><region><li>Île-de-France</li></region><settlement><li>Palaiseau</li></settlement></list><tree><country name="Australie"><noRegion><name sortKey="Evans, Jason P" sort="Evans, Jason P" uniqKey="Evans J" first="Jason P." last="Evans">Jason P. Evans</name></noRegion><name sortKey="Evans, Jason P" sort="Evans, Jason P" uniqKey="Evans J" first="Jason P." last="Evans">Jason P. Evans</name><name sortKey="Evans, Jason P" sort="Evans, Jason P" uniqKey="Evans J" first="Jason P." last="Evans">Jason P. Evans</name></country><country name="France"><region name="Île-de-France"><name sortKey="Boyer Ouchet, Irene" sort="Boyer Ouchet, Irene" uniqKey="Boyer Ouchet I" first="Irène" last="Boyer-Souchet">Irène Boyer-Souchet</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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