A tropospheric ozone maximum over the Middle East
The GEOS‐CHEM global 3‐D model of tropospheric chemistry predicts a summertime O3 maximum over the Middle East, with mean mixing ratios in the middle and upper troposphere in excess of 80 ppbv. This model feature is consistent with the few observations from commercial aircraft in the region. Its ori...
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| Veröffentlicht in: | Geophysical research letters 2001-09, Vol.28 (17), p.3235-3238 |
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| creator | Li, Qinbin Jacob, Daniel J. Logan, Jennifer A. Bey, Isabelle Yantosca, Robert M. Liu, Hongyu Martin, Randall V. Fiore, Arlene M. Field, Brendan D. Duncan, Bryan N. Thouret, Valérie |
| description | The GEOS‐CHEM global 3‐D model of tropospheric chemistry predicts a summertime O3 maximum over the Middle East, with mean mixing ratios in the middle and upper troposphere in excess of 80 ppbv. This model feature is consistent with the few observations from commercial aircraft in the region. Its origin in the model reflects a complex interplay of dynamical and chemical factors, and of anthropogenic and natural influences. The anticyclonic circulation in the middle and upper troposphere over the Middle East funnels northern midlatitude pollution transported in the westerly subtropical jet as well as lightning outflow from the Indian monsoon and pollution from eastern Asia transported in an easterly tropical jet. Large‐scale subsidence over the region takes place with continued net production of O3 and little mid‐level outflow. Transport from the stratosphere does not contribute significantly to the O3 maximum. Sensitivity simulations with anthropogenic or lightning emissions shut off indicate decreases of 20–30% and 10–15% respectively in the tropospheric O3 column over the Middle East. More observations in this region are needed to confirm the presence of the O3 maximum. |
| doi_str_mv | 10.1029/2001GL013134 |
| format | Article |
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This model feature is consistent with the few observations from commercial aircraft in the region. Its origin in the model reflects a complex interplay of dynamical and chemical factors, and of anthropogenic and natural influences. The anticyclonic circulation in the middle and upper troposphere over the Middle East funnels northern midlatitude pollution transported in the westerly subtropical jet as well as lightning outflow from the Indian monsoon and pollution from eastern Asia transported in an easterly tropical jet. Large‐scale subsidence over the region takes place with continued net production of O3 and little mid‐level outflow. Transport from the stratosphere does not contribute significantly to the O3 maximum. Sensitivity simulations with anthropogenic or lightning emissions shut off indicate decreases of 20–30% and 10–15% respectively in the tropospheric O3 column over the Middle East. More observations in this region are needed to confirm the presence of the O3 maximum.</description><identifier>ISSN: 0094-8276</identifier><identifier>EISSN: 1944-8007</identifier><identifier>DOI: 10.1029/2001GL013134</identifier><identifier>CODEN: GPRLAJ</identifier><language>eng</language><publisher>Washington, DC: Blackwell Publishing Ltd</publisher><subject>Applied sciences ; Atmospheric pollution ; Chemical composition and interactions. Ionic interactions and processes ; Earth, ocean, space ; Exact sciences and technology ; External geophysics ; Meteorology ; Pollutants physicochemistry study: properties, effects, reactions, transport and distribution ; Pollution</subject><ispartof>Geophysical research letters, 2001-09, Vol.28 (17), p.3235-3238</ispartof><rights>2001 by the Chinese Geophysical Society</rights><rights>2001 INIST-CNRS</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c4801-d8faf1dfbf013d2f895cff90f6250804ced4c34684ced28de62d6fb3762f54943</citedby><cites>FETCH-LOGICAL-c4801-d8faf1dfbf013d2f895cff90f6250804ced4c34684ced28de62d6fb3762f54943</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1029%2F2001GL013134$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1029%2F2001GL013134$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,776,780,1411,1427,11493,27901,27902,45550,45551,46384,46443,46808,46867</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=1131471$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Li, Qinbin</creatorcontrib><creatorcontrib>Jacob, Daniel J.</creatorcontrib><creatorcontrib>Logan, Jennifer A.</creatorcontrib><creatorcontrib>Bey, Isabelle</creatorcontrib><creatorcontrib>Yantosca, Robert M.</creatorcontrib><creatorcontrib>Liu, Hongyu</creatorcontrib><creatorcontrib>Martin, Randall V.</creatorcontrib><creatorcontrib>Fiore, Arlene M.</creatorcontrib><creatorcontrib>Field, Brendan D.</creatorcontrib><creatorcontrib>Duncan, Bryan N.</creatorcontrib><creatorcontrib>Thouret, Valérie</creatorcontrib><title>A tropospheric ozone maximum over the Middle East</title><title>Geophysical research letters</title><addtitle>Geophys. Res. Lett</addtitle><description>The GEOS‐CHEM global 3‐D model of tropospheric chemistry predicts a summertime O3 maximum over the Middle East, with mean mixing ratios in the middle and upper troposphere in excess of 80 ppbv. This model feature is consistent with the few observations from commercial aircraft in the region. Its origin in the model reflects a complex interplay of dynamical and chemical factors, and of anthropogenic and natural influences. The anticyclonic circulation in the middle and upper troposphere over the Middle East funnels northern midlatitude pollution transported in the westerly subtropical jet as well as lightning outflow from the Indian monsoon and pollution from eastern Asia transported in an easterly tropical jet. Large‐scale subsidence over the region takes place with continued net production of O3 and little mid‐level outflow. Transport from the stratosphere does not contribute significantly to the O3 maximum. Sensitivity simulations with anthropogenic or lightning emissions shut off indicate decreases of 20–30% and 10–15% respectively in the tropospheric O3 column over the Middle East. More observations in this region are needed to confirm the presence of the O3 maximum.</description><subject>Applied sciences</subject><subject>Atmospheric pollution</subject><subject>Chemical composition and interactions. Ionic interactions and processes</subject><subject>Earth, ocean, space</subject><subject>Exact sciences and technology</subject><subject>External geophysics</subject><subject>Meteorology</subject><subject>Pollutants physicochemistry study: properties, effects, reactions, transport and distribution</subject><subject>Pollution</subject><issn>0094-8276</issn><issn>1944-8007</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2001</creationdate><recordtype>article</recordtype><recordid>eNp9kEtLw0AUhQdRsFZ3_oAsxJXRO48kk2WpNSrxgSiCm2E6DxpNmjiTauuvNyVFXbm6Z_F9h8tB6BDDKQaSnhEAnOWAKaZsCw1wyljIAZJtNABIu0ySeBftef8KABQoHiA8ClpXN7VvZsYVKqi_6rkJKrksqkUV1B_GBe3MBDeF1qUJJtK3-2jHytKbg80doqeLyeP4MszvsqvxKA8V44BDza20WNup7f7RxPI0UtamYGMSAQemjGaKspivE-HaxETHdkqTmNiIpYwO0XHf27j6fWF8K6rCK1OWcm7qhReYMwoJTzvwpAeVq713xorGFZV0K4FBrHcRf3fp8KNNr_RKltbJuSr8r9NRLMEdRnrssyjN6t9KkT3kncPWUthLhW_N8keS7k3ECU0i8Xybiez6JYni-3Mxpt_kDH42</recordid><startdate>20010901</startdate><enddate>20010901</enddate><creator>Li, Qinbin</creator><creator>Jacob, Daniel J.</creator><creator>Logan, Jennifer A.</creator><creator>Bey, Isabelle</creator><creator>Yantosca, Robert M.</creator><creator>Liu, Hongyu</creator><creator>Martin, Randall V.</creator><creator>Fiore, Arlene M.</creator><creator>Field, Brendan D.</creator><creator>Duncan, Bryan N.</creator><creator>Thouret, Valérie</creator><general>Blackwell Publishing Ltd</general><general>American Geophysical Union</general><scope>BSCLL</scope><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7TG</scope><scope>7TV</scope><scope>C1K</scope><scope>KL.</scope></search><sort><creationdate>20010901</creationdate><title>A tropospheric ozone maximum over the Middle East</title><author>Li, Qinbin ; Jacob, Daniel J. ; Logan, Jennifer A. ; Bey, Isabelle ; Yantosca, Robert M. ; Liu, Hongyu ; Martin, Randall V. ; Fiore, Arlene M. ; Field, Brendan D. ; Duncan, Bryan N. ; Thouret, Valérie</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c4801-d8faf1dfbf013d2f895cff90f6250804ced4c34684ced28de62d6fb3762f54943</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2001</creationdate><topic>Applied sciences</topic><topic>Atmospheric pollution</topic><topic>Chemical composition and interactions. Ionic interactions and processes</topic><topic>Earth, ocean, space</topic><topic>Exact sciences and technology</topic><topic>External geophysics</topic><topic>Meteorology</topic><topic>Pollutants physicochemistry study: properties, effects, reactions, transport and distribution</topic><topic>Pollution</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Li, Qinbin</creatorcontrib><creatorcontrib>Jacob, Daniel J.</creatorcontrib><creatorcontrib>Logan, Jennifer A.</creatorcontrib><creatorcontrib>Bey, Isabelle</creatorcontrib><creatorcontrib>Yantosca, Robert M.</creatorcontrib><creatorcontrib>Liu, Hongyu</creatorcontrib><creatorcontrib>Martin, Randall V.</creatorcontrib><creatorcontrib>Fiore, Arlene M.</creatorcontrib><creatorcontrib>Field, Brendan D.</creatorcontrib><creatorcontrib>Duncan, Bryan N.</creatorcontrib><creatorcontrib>Thouret, Valérie</creatorcontrib><collection>Istex</collection><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Meteorological & Geoastrophysical Abstracts</collection><collection>Pollution Abstracts</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Meteorological & Geoastrophysical Abstracts - Academic</collection><jtitle>Geophysical research letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Li, Qinbin</au><au>Jacob, Daniel J.</au><au>Logan, Jennifer A.</au><au>Bey, Isabelle</au><au>Yantosca, Robert M.</au><au>Liu, Hongyu</au><au>Martin, Randall V.</au><au>Fiore, Arlene M.</au><au>Field, Brendan D.</au><au>Duncan, Bryan N.</au><au>Thouret, Valérie</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>A tropospheric ozone maximum over the Middle East</atitle><jtitle>Geophysical research letters</jtitle><addtitle>Geophys. Res. Lett</addtitle><date>2001-09-01</date><risdate>2001</risdate><volume>28</volume><issue>17</issue><spage>3235</spage><epage>3238</epage><pages>3235-3238</pages><issn>0094-8276</issn><eissn>1944-8007</eissn><coden>GPRLAJ</coden><abstract>The GEOS‐CHEM global 3‐D model of tropospheric chemistry predicts a summertime O3 maximum over the Middle East, with mean mixing ratios in the middle and upper troposphere in excess of 80 ppbv. This model feature is consistent with the few observations from commercial aircraft in the region. Its origin in the model reflects a complex interplay of dynamical and chemical factors, and of anthropogenic and natural influences. The anticyclonic circulation in the middle and upper troposphere over the Middle East funnels northern midlatitude pollution transported in the westerly subtropical jet as well as lightning outflow from the Indian monsoon and pollution from eastern Asia transported in an easterly tropical jet. Large‐scale subsidence over the region takes place with continued net production of O3 and little mid‐level outflow. Transport from the stratosphere does not contribute significantly to the O3 maximum. Sensitivity simulations with anthropogenic or lightning emissions shut off indicate decreases of 20–30% and 10–15% respectively in the tropospheric O3 column over the Middle East. More observations in this region are needed to confirm the presence of the O3 maximum.</abstract><cop>Washington, DC</cop><pub>Blackwell Publishing Ltd</pub><doi>10.1029/2001GL013134</doi><tpages>4</tpages><oa>free_for_read</oa></addata></record> |
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| subjects | Applied sciences Atmospheric pollution Chemical composition and interactions. Ionic interactions and processes Earth, ocean, space Exact sciences and technology External geophysics Meteorology Pollutants physicochemistry study: properties, effects, reactions, transport and distribution Pollution |
| title | A tropospheric ozone maximum over the Middle East |
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