Article ID Journal Published Year Pages File Type
6338631 Atmospheric Environment 2015 13 Pages PDF
Abstract
Three-day HYSPLIT back trajectories indicate that ozone levels are typically about 17% lower in the 6-12 km range under wind flow conditions from the East than in cases when trajectories came from the Mediterranean. High pressure may lead to subsidence of ozone from the upper troposphere/lower stratosphere and eventually cause an increase of ozone mixing ratios by ∼18% above average between 6 and 7 km, i.e. slightly above subtropical subsidence layer. Under the impact of regional convective activity and associated lightning, ozone mixing ratios can increase by more than 35% averaged over the 9-12 km altitude range. In both cases maximum ozone in the mid to upper troposphere reached more than 100 ppbv.
Related Topics
Physical Sciences and Engineering Earth and Planetary Sciences Atmospheric Science
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