Observational evidence for the role of denitrification in Arctic stratospheric ozone loss
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 O...
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| Veröffentlicht in: | Geophysical research letters 2001-08, Vol.28 (15), p.2879-2882 |
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| creator | Gao, R. S. Richard, E. C. Popp, P. J. Toon, G. C. Hurst, D. F. Newman, P. A. Holecek, J. C. Northway, M. J. Fahey, D. W. Danilin, M. Y. Sen, B. Aikin, K. Romashkin, P. A. Elkins, J. W. Webster, C. R. Schauffler, S. M. Greenblatt, J. B. McElroy, C. T. Lait, L. R. Bui, T. P. Baumgardner, D. |
| description | 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. |
| doi_str_mv | 10.1029/2001GL013173 |
| format | Article |
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P.</creatorcontrib><creatorcontrib>Baumgardner, D.</creatorcontrib><title>Observational evidence for the role of denitrification in Arctic stratospheric ozone loss</title><title>Geophysical research letters</title><addtitle>Geophys. Res. Lett</addtitle><description>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.</description><subject>Atmospheric composition. Chemical and photochemical reactions</subject><subject>Earth, ocean, space</subject><subject>Exact sciences and technology</subject><subject>External geophysics</subject><subject>Physics of the high neutral atmosphere</subject><issn>0094-8276</issn><issn>1944-8007</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2001</creationdate><recordtype>article</recordtype><recordid>eNp9kE9PVTEQxRuiCU9kxwfogrjy4kzb-6dLJPoguUpCMKibpq93GoqX20d7QfHTW3lEXLGamZPfOZkcxvYQDhCEficAcNkDSmzlFlugVqrqANoXbAGgyy7aZpu9yvkKACRIXLBvp6tM6c7OIU525HQXBpoccR8Tny-JpzgSj54XNcwp-OAeUB4mfpjcHBzPc7JzzOtLSuWKv-NEfIw5v2YvvR0z7T7OHfbl44fzo-OqP12eHB32lVMdiMpZ10hCpTqEpvGIQ-3J1m7lu07qFdCgPAxKo0BddKVrawdqxCDRUy283GFvNrnrFG9uKc_mOmRH42gnirfZYCel1qgL-HYDulTeS-TNOoVrm-4Ngvnbn_m_v4LvP-ba7Ozok51cyE8ehEJhwcQG-xlGun820izPelRtI4qp2phCnunXP5NNP0zTyrY2F5-XRqJ-f9x_-m6-yj8TiY4B</recordid><startdate>20010801</startdate><enddate>20010801</enddate><creator>Gao, R. S.</creator><creator>Richard, E. 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S. ; Richard, E. C. ; Popp, P. J. ; Toon, G. C. ; Hurst, D. F. ; Newman, P. A. ; Holecek, J. C. ; Northway, M. J. ; Fahey, D. W. ; Danilin, M. Y. ; Sen, B. ; Aikin, K. ; Romashkin, P. A. ; Elkins, J. W. ; Webster, C. R. ; Schauffler, S. M. ; Greenblatt, J. B. ; McElroy, C. T. ; Lait, L. R. ; Bui, T. P. ; Baumgardner, D.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c4802-cac63e14481066f11d5fea5cbf8839b0ed4f0d491219ea5495aade62d31fe52f3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2001</creationdate><topic>Atmospheric composition. Chemical and photochemical reactions</topic><topic>Earth, ocean, space</topic><topic>Exact sciences and technology</topic><topic>External geophysics</topic><topic>Physics of the high neutral atmosphere</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Gao, R. S.</creatorcontrib><creatorcontrib>Richard, E. 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P.</au><au>Baumgardner, D.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Observational evidence for the role of denitrification in Arctic stratospheric ozone loss</atitle><jtitle>Geophysical research letters</jtitle><addtitle>Geophys. Res. Lett</addtitle><date>2001-08-01</date><risdate>2001</risdate><volume>28</volume><issue>15</issue><spage>2879</spage><epage>2882</epage><pages>2879-2882</pages><issn>0094-8276</issn><eissn>1944-8007</eissn><coden>GPRLAJ</coden><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. 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| source | Wiley Free Content; Wiley-Blackwell AGU Digital Library; Wiley Online Library Journals Frontfile Complete; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals |
| subjects | Atmospheric composition. Chemical and photochemical reactions Earth, ocean, space Exact sciences and technology External geophysics Physics of the high neutral atmosphere |
| title | Observational evidence for the role of denitrification in Arctic stratospheric ozone loss |
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