Year: 2001
Type: article
Abstract: Severe and extensive denitrification, chlorine activation, and photochemical ozone loss were observed throughout the lower stratosphere in the 1999–2000 Arctic vortex. A large number of air parcels sampled between late February and mid‐March, 2000, were photochemically intercomparable for chemical O3 loss rates. In these air parcels, the temporal evolution of the correlations of O3 with the NOy remaining after denitrification provides strong evidence for the role of NOy in moderating O3 destruction. In 71%‐denitrified air parcels, a chemical O3 destruction rate of 63 ppbv/day was calculated, while in 43%‐denitrified air parcels the destruction rate was only 43 ppbv/day. These observational results show that representative denitrification models will be required for accurate prediction of future Arctic O3 changes.
Source: Geophysical Research Letters
DOI: 10.1029/2001gl013173
Institutions: National Oceanic and Atmospheric Administration, Cooperative Institute for Research in Environmental Sciences, University of Colorado Boulder, Jet Propulsion Laboratory, Goddard Space Flight Center, Atmospheric and Environmental Research, NSF National Center for Atmospheric Research, Ames Research Center, Environment and Climate Change Canada, Universidad Nacional Autónoma de México
Language: English
Subfield: Atmospheric Science
Field: Earth and Planetary Sciences
Domain: Physical Sciences
SDG: Climate action
Open Access status: bronze
OpenAlex ID: W2000438450