Clean air slots amid atmospheric pollution

Peter V. Hobbs ()
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Peter V. Hobbs: University of Washington

Nature, 2002, vol. 415, issue 6874, 861-861

Abstract: Abstract Layering in the Earth's atmosphere is most commonly seen where parts of the atmosphere resist the incursion of air parcels from above and below — for example, when there is an increase in temperature with height over a particular altitude range. Pollutants tend to accumulate underneath the resulting stable layers1,2,3,4,5, which is why visibility often increases markedly above certain altitudes. Here we describe the occurrence of an opposite effect, in which stable layers generate a layer of remarkably clean air (we refer to these layers as clean-air 'slots') sandwiched between layers of polluted air.

Date: 2002
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DOI: 10.1038/415861a

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