Relative changes in CO emissions over megacities based on observations from space
Urban areas are large sources of several air pollutants, with carbon monoxide (CO) among the largest. Yet measurement from space of their CO emissions remains elusive due to its long lifetime. Here we introduce a new method of estimating relative changes in CO emissions over megacities. A new multic...
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| Veröffentlicht in: | Geophysical research letters 2013-07, Vol.40 (14), p.3766-3771 |
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| creator | Pommier, Matthieu McLinden, Chris A. Deeter, Merritt |
| description | Urban areas are large sources of several air pollutants, with carbon monoxide (CO) among the largest. Yet measurement from space of their CO emissions remains elusive due to its long lifetime. Here we introduce a new method of estimating relative changes in CO emissions over megacities. A new multichannel Measurements of Pollution in the Troposphere (MOPITT) CO data product, offering improved sensitivity to the boundary layer, is used to estimate this relative change over eight megacities: Moscow, Paris, Mexico, Tehran, Baghdad, Los Angeles, Sao Paulo, and Delhi. By combining MOPITT observations with wind information from a meteorological reanalysis, changes in the CO upwind‐downwind difference are used as a proxy for changes in emissions. Most locations show a clear reduction in CO emission between 2000–2003 and 2004–2008, reaching −43% over Tehran and −47% over Baghdad. There is a contrasted agreement between these results and the MACCity and Emission Database for Global Atmospheric Research v4.2 inventories.
Key Points
Satellite measurements used to determine relative change in CO over megacities
Wind direction influences the CO distribution observed from space
upwind‐downwind differences are used to infer changes in CO emissions |
| doi_str_mv | 10.1002/grl.50704 |
| format | Article |
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Key Points
Satellite measurements used to determine relative change in CO over megacities
Wind direction influences the CO distribution observed from space
upwind‐downwind differences are used to infer changes in CO emissions</description><identifier>ISSN: 0094-8276</identifier><identifier>EISSN: 1944-8007</identifier><identifier>DOI: 10.1002/grl.50704</identifier><identifier>CODEN: GPRLAJ</identifier><language>eng</language><publisher>Washington, DC: Blackwell Publishing Ltd</publisher><subject>Air pollution ; air quality ; Atmospheric and Oceanic Physics ; Atmospheric research ; Atmospherics ; Boundary layers ; Carbon monoxide ; Earth sciences ; Earth, ocean, space ; Emission ; Emission measurements ; Emission standards ; Emissions ; Estimating ; Exact sciences and technology ; Megacities ; Meteorology ; MOPITT ; Paris ; Physics ; satellite remote sensing ; Troposphere ; Urban areas ; wind direction</subject><ispartof>Geophysical research letters, 2013-07, Vol.40 (14), p.3766-3771</ispartof><rights>2013. American Geophysical Union. All Rights Reserved.</rights><rights>2014 INIST-CNRS</rights><rights>Distributed under a Creative Commons Attribution 4.0 International License</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c4674-427f997982a6383b647e8c03d0f76508b6c55459e7df526317a348dee86dd2403</citedby><cites>FETCH-LOGICAL-c4674-427f997982a6383b647e8c03d0f76508b6c55459e7df526317a348dee86dd2403</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1002%2Fgrl.50704$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1002%2Fgrl.50704$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>230,314,780,784,885,1417,1433,11514,27924,27925,45574,45575,46409,46468,46833,46892</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=27681585$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://hal.science/hal-00844309$$DView record in HAL$$Hfree_for_read</backlink></links><search><creatorcontrib>Pommier, Matthieu</creatorcontrib><creatorcontrib>McLinden, Chris A.</creatorcontrib><creatorcontrib>Deeter, Merritt</creatorcontrib><title>Relative changes in CO emissions over megacities based on observations from space</title><title>Geophysical research letters</title><addtitle>Geophys. Res. Lett</addtitle><description>Urban areas are large sources of several air pollutants, with carbon monoxide (CO) among the largest. Yet measurement from space of their CO emissions remains elusive due to its long lifetime. Here we introduce a new method of estimating relative changes in CO emissions over megacities. A new multichannel Measurements of Pollution in the Troposphere (MOPITT) CO data product, offering improved sensitivity to the boundary layer, is used to estimate this relative change over eight megacities: Moscow, Paris, Mexico, Tehran, Baghdad, Los Angeles, Sao Paulo, and Delhi. By combining MOPITT observations with wind information from a meteorological reanalysis, changes in the CO upwind‐downwind difference are used as a proxy for changes in emissions. Most locations show a clear reduction in CO emission between 2000–2003 and 2004–2008, reaching −43% over Tehran and −47% over Baghdad. There is a contrasted agreement between these results and the MACCity and Emission Database for Global Atmospheric Research v4.2 inventories.
Key Points
Satellite measurements used to determine relative change in CO over megacities
Wind direction influences the CO distribution observed from space
upwind‐downwind differences are used to infer changes in CO emissions</description><subject>Air pollution</subject><subject>air quality</subject><subject>Atmospheric and Oceanic Physics</subject><subject>Atmospheric research</subject><subject>Atmospherics</subject><subject>Boundary layers</subject><subject>Carbon monoxide</subject><subject>Earth sciences</subject><subject>Earth, ocean, space</subject><subject>Emission</subject><subject>Emission measurements</subject><subject>Emission standards</subject><subject>Emissions</subject><subject>Estimating</subject><subject>Exact sciences and technology</subject><subject>Megacities</subject><subject>Meteorology</subject><subject>MOPITT</subject><subject>Paris</subject><subject>Physics</subject><subject>satellite remote sensing</subject><subject>Troposphere</subject><subject>Urban areas</subject><subject>wind direction</subject><issn>0094-8276</issn><issn>1944-8007</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2013</creationdate><recordtype>article</recordtype><recordid>eNp1kc1uEzEUhUcIJEJhwRtYQkiwmPb637OsIkiRpi1ERSwtx3MndZmMg50E-vY4pA0SEitb9nfOvUenql5TOKUA7GyZhlMJGsSTakIbIWoDoJ9WE4Cm3JlWz6sXOd8BAAdOJ9WXOQ5uE3ZI_K0bl5hJGMn0muAq5BzimEncYSIrXDofNqH8L1zGjsSRxEXGtCviPdWnuCJ57Ty-rJ71bsj46uE8qb5-_HAzvajb69mn6Xlbe6G0qAXTfdPoxjCnuOELJTQaD7yDXisJZqG8lEI2qLteMsWpdlyYDtGormMC-En1_uB76wa7TmHl0r2NLtiL89bu3wCMEByaHS3suwO7TvHHFvPGlngeh8GNGLfZUsmEAClAFPTNP-hd3KaxJLFUCQZcMGr-Dvcp5pywP25Awe6LsKUI-6eIwr59cHTZu6FPbvQhHwWlE0OlkYU7O3A_w4D3_ze0s3n76FwfFCFv8NdR4dJ3qzTX0n67mtlp-_nypp039or_BhwLovM</recordid><startdate>20130728</startdate><enddate>20130728</enddate><creator>Pommier, Matthieu</creator><creator>McLinden, Chris A.</creator><creator>Deeter, Merritt</creator><general>Blackwell Publishing Ltd</general><general>American Geophysical Union</general><general>John Wiley & Sons, Inc</general><scope>BSCLL</scope><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7TG</scope><scope>7TN</scope><scope>8FD</scope><scope>F1W</scope><scope>FR3</scope><scope>H8D</scope><scope>H96</scope><scope>KL.</scope><scope>KR7</scope><scope>L.G</scope><scope>L7M</scope><scope>1XC</scope><scope>VOOES</scope></search><sort><creationdate>20130728</creationdate><title>Relative changes in CO emissions over megacities based on observations from space</title><author>Pommier, Matthieu ; McLinden, Chris A. ; Deeter, Merritt</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c4674-427f997982a6383b647e8c03d0f76508b6c55459e7df526317a348dee86dd2403</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2013</creationdate><topic>Air pollution</topic><topic>air quality</topic><topic>Atmospheric and Oceanic Physics</topic><topic>Atmospheric research</topic><topic>Atmospherics</topic><topic>Boundary layers</topic><topic>Carbon monoxide</topic><topic>Earth sciences</topic><topic>Earth, ocean, space</topic><topic>Emission</topic><topic>Emission measurements</topic><topic>Emission standards</topic><topic>Emissions</topic><topic>Estimating</topic><topic>Exact sciences and technology</topic><topic>Megacities</topic><topic>Meteorology</topic><topic>MOPITT</topic><topic>Paris</topic><topic>Physics</topic><topic>satellite remote sensing</topic><topic>Troposphere</topic><topic>Urban areas</topic><topic>wind direction</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Pommier, Matthieu</creatorcontrib><creatorcontrib>McLinden, Chris A.</creatorcontrib><creatorcontrib>Deeter, Merritt</creatorcontrib><collection>Istex</collection><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Meteorological & Geoastrophysical Abstracts</collection><collection>Oceanic Abstracts</collection><collection>Technology Research Database</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Engineering Research Database</collection><collection>Aerospace Database</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 2: Ocean Technology, Policy & Non-Living Resources</collection><collection>Meteorological & Geoastrophysical Abstracts - Academic</collection><collection>Civil Engineering Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Hyper Article en Ligne (HAL)</collection><collection>Hyper Article en Ligne (HAL) (Open Access)</collection><jtitle>Geophysical research letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Pommier, Matthieu</au><au>McLinden, Chris A.</au><au>Deeter, Merritt</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Relative changes in CO emissions over megacities based on observations from space</atitle><jtitle>Geophysical research letters</jtitle><addtitle>Geophys. Res. Lett</addtitle><date>2013-07-28</date><risdate>2013</risdate><volume>40</volume><issue>14</issue><spage>3766</spage><epage>3771</epage><pages>3766-3771</pages><issn>0094-8276</issn><eissn>1944-8007</eissn><coden>GPRLAJ</coden><abstract>Urban areas are large sources of several air pollutants, with carbon monoxide (CO) among the largest. Yet measurement from space of their CO emissions remains elusive due to its long lifetime. Here we introduce a new method of estimating relative changes in CO emissions over megacities. A new multichannel Measurements of Pollution in the Troposphere (MOPITT) CO data product, offering improved sensitivity to the boundary layer, is used to estimate this relative change over eight megacities: Moscow, Paris, Mexico, Tehran, Baghdad, Los Angeles, Sao Paulo, and Delhi. By combining MOPITT observations with wind information from a meteorological reanalysis, changes in the CO upwind‐downwind difference are used as a proxy for changes in emissions. Most locations show a clear reduction in CO emission between 2000–2003 and 2004–2008, reaching −43% over Tehran and −47% over Baghdad. There is a contrasted agreement between these results and the MACCity and Emission Database for Global Atmospheric Research v4.2 inventories.
Key Points
Satellite measurements used to determine relative change in CO over megacities
Wind direction influences the CO distribution observed from space
upwind‐downwind differences are used to infer changes in CO emissions</abstract><cop>Washington, DC</cop><pub>Blackwell Publishing Ltd</pub><doi>10.1002/grl.50704</doi><tpages>6</tpages><oa>free_for_read</oa></addata></record> |
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| source | Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; Wiley Free Content; Wiley-Blackwell AGU Digital Library; Wiley Online Library All Journals |
| subjects | Air pollution air quality Atmospheric and Oceanic Physics Atmospheric research Atmospherics Boundary layers Carbon monoxide Earth sciences Earth, ocean, space Emission Emission measurements Emission standards Emissions Estimating Exact sciences and technology Megacities Meteorology MOPITT Paris Physics satellite remote sensing Troposphere Urban areas wind direction |
| title | Relative changes in CO emissions over megacities based on observations from space |
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