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'Chemical equator' discovery will aid pollution mapping
Date:9/23/2008

ientists discovered evidence of the chemical equator using sensors on a specially equipped aeroplane during a series of flights north of Darwin. At the time, the ITCZ was situated well to the south over central Australia.

Dr Jacqueline Hamilton, of the Department of Chemistry at York, said: "The shallow waters of the Western Pacific, known as the Tropical Warm Pool, have some of highest sea surface temperatures in the world, which result in the region's weather being dominated by storm systems. The position of the chemical equator was to the south of this stormy region during the ACTIVE campaign.

"This means that these powerful storms may act as pumps, lifting highly polluted air from the surface to high in the atmosphere where pollutants will remain longer and may have a global influence. To improve global simulations of pollutant transport, it is vital to know when the chemical and meteorological boundary are in different locations."


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Contact: David Garner
dcg501@york.ac.uk
44-019-044-32153
University of York
Source:Eurekalert

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