An Observation‐Based Correction for Aerosol Effects on Nitrogen Dioxide Column Retrievals Using the Absorbing Aerosol Index
Retrievals of nitrogen dioxide (NO2) and other trace gases from satellite measurements rely on accurate calculation of an air mass factor (AMF) to account for the atmospheric light path. Scattering and absorption of sunlight by aerosols affects AMFs by impacting the sensitivity of satellite‐observed...
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| Veröffentlicht in: | Geophysical research letters 2019-07, Vol.46 (14), p.8442-8452 |
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| creator | Cooper, Matthew J. Martin, Randall V. Hammer, Melanie S. McLinden, Chris A. |
| description | Retrievals of nitrogen dioxide (NO2) and other trace gases from satellite measurements rely on accurate calculation of an air mass factor (AMF) to account for the atmospheric light path. Scattering and absorption of sunlight by aerosols affects AMFs by impacting the sensitivity of satellite‐observed radiances to NO2 at different altitudes. Current NO2 retrievals either do not explicitly account for these effects or rely on aerosol information from an external source. Here we investigate a method for quantifying the impact of aerosols on NO2 AMFs using the Absorbing Aerosol Index, a satellite‐based measure of light absorption and scattering by aerosols. We find a robust relationship between the Absorbing Aerosol Index and the aerosol correction to NO2 AMFs using the GEOS‐Chem chemical transport model and the LIDORT radiative transfer model. This relationship enables estimating the impact of aerosols on AMFs using observed Absorbing Aerosol Index values, thus yielding an observation‐based aerosol correction for NO2 retrievals.
Key Points
Light absorption and scattering by aerosols impacts satellite instrument sensitivity to trace gases, affecting air mass factor calculations
We develop the first observation‐based constraints on aerosol impacts on NO2 air mass factor calculations
We show that Absorbing Aerosol Index measurements can predict aerosol impacts on NO2 air mass factors |
| doi_str_mv | 10.1029/2019GL083673 |
| format | Article |
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Key Points
Light absorption and scattering by aerosols impacts satellite instrument sensitivity to trace gases, affecting air mass factor calculations
We develop the first observation‐based constraints on aerosol impacts on NO2 air mass factor calculations
We show that Absorbing Aerosol Index measurements can predict aerosol impacts on NO2 air mass factors</description><identifier>ISSN: 0094-8276</identifier><identifier>EISSN: 1944-8007</identifier><identifier>DOI: 10.1029/2019GL083673</identifier><language>eng</language><publisher>Washington: John Wiley & Sons, Inc</publisher><subject>Absorption ; Aerosol absorption ; Aerosol effects ; Aerosol scattering ; Aerosols ; Air masses ; Chemical transport ; Electromagnetic absorption ; Gases ; Light absorption ; Meteorological satellites ; Nitrogen dioxide ; Organic chemistry ; Radiative transfer ; Satellite observation ; Satellites ; Scattering ; Trace gases</subject><ispartof>Geophysical research letters, 2019-07, Vol.46 (14), p.8442-8452</ispartof><rights>2019. American Geophysical Union. All Rights Reserved.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c3065-ce838d6ac9bd1027c6475a301971af4fa82938dbba732d48fecf066d5ca80bdf3</citedby><cites>FETCH-LOGICAL-c3065-ce838d6ac9bd1027c6475a301971af4fa82938dbba732d48fecf066d5ca80bdf3</cites><orcidid>0000-0003-2632-8402 ; 0000-0001-5054-1380 ; 0000-0002-4145-3458</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1029%2F2019GL083673$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1029%2F2019GL083673$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,778,782,1414,1430,11501,27911,27912,45561,45562,46396,46455,46820,46879</link.rule.ids></links><search><creatorcontrib>Cooper, Matthew J.</creatorcontrib><creatorcontrib>Martin, Randall V.</creatorcontrib><creatorcontrib>Hammer, Melanie S.</creatorcontrib><creatorcontrib>McLinden, Chris A.</creatorcontrib><title>An Observation‐Based Correction for Aerosol Effects on Nitrogen Dioxide Column Retrievals Using the Absorbing Aerosol Index</title><title>Geophysical research letters</title><description>Retrievals of nitrogen dioxide (NO2) and other trace gases from satellite measurements rely on accurate calculation of an air mass factor (AMF) to account for the atmospheric light path. Scattering and absorption of sunlight by aerosols affects AMFs by impacting the sensitivity of satellite‐observed radiances to NO2 at different altitudes. Current NO2 retrievals either do not explicitly account for these effects or rely on aerosol information from an external source. Here we investigate a method for quantifying the impact of aerosols on NO2 AMFs using the Absorbing Aerosol Index, a satellite‐based measure of light absorption and scattering by aerosols. We find a robust relationship between the Absorbing Aerosol Index and the aerosol correction to NO2 AMFs using the GEOS‐Chem chemical transport model and the LIDORT radiative transfer model. This relationship enables estimating the impact of aerosols on AMFs using observed Absorbing Aerosol Index values, thus yielding an observation‐based aerosol correction for NO2 retrievals.
Key Points
Light absorption and scattering by aerosols impacts satellite instrument sensitivity to trace gases, affecting air mass factor calculations
We develop the first observation‐based constraints on aerosol impacts on NO2 air mass factor calculations
We show that Absorbing Aerosol Index measurements can predict aerosol impacts on NO2 air mass factors</description><subject>Absorption</subject><subject>Aerosol absorption</subject><subject>Aerosol effects</subject><subject>Aerosol scattering</subject><subject>Aerosols</subject><subject>Air masses</subject><subject>Chemical transport</subject><subject>Electromagnetic absorption</subject><subject>Gases</subject><subject>Light absorption</subject><subject>Meteorological satellites</subject><subject>Nitrogen dioxide</subject><subject>Organic chemistry</subject><subject>Radiative transfer</subject><subject>Satellite observation</subject><subject>Satellites</subject><subject>Scattering</subject><subject>Trace gases</subject><issn>0094-8276</issn><issn>1944-8007</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><recordid>eNp9kE1OwzAQhS0EEqWw4wCW2BIY20mcLEMppVJEpYquIyexi6s0LnZa2gUSR-CMnARXBYkVq5l5-ubnDUKXBG4I0PSWAklHOSQs5uwI9UgahkECwI9RDyD1OeXxKTpzbgEADBjpofesxZPSSbsRnTbt18fnnXCyxgNjraz2ElbG4kxa40yDh0p51WEvP-nOmrls8b02W11L39Ksly2eys5quRGNwzOn2znuXiTOSmdsua9-J43bWm7P0YnyoLz4iX00exg-Dx6DfDIaD7I8qBjEUVDJhCV1LKq0rL1RXsUhjwTzbjkRKlQioakHylJwRusw8TcqiOM6qkQCZa1YH10d5q6seV1L1xULs7atX1lQyikhlBHuqesDVfkTnZWqWFm9FHZXECj2Dy7-Ptjj9IC_6Ubu_mWL0TSPUsoj9g2OkH58</recordid><startdate>20190728</startdate><enddate>20190728</enddate><creator>Cooper, Matthew J.</creator><creator>Martin, Randall V.</creator><creator>Hammer, Melanie S.</creator><creator>McLinden, Chris A.</creator><general>John Wiley & Sons, Inc</general><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><orcidid>https://orcid.org/0000-0003-2632-8402</orcidid><orcidid>https://orcid.org/0000-0001-5054-1380</orcidid><orcidid>https://orcid.org/0000-0002-4145-3458</orcidid></search><sort><creationdate>20190728</creationdate><title>An Observation‐Based Correction for Aerosol Effects on Nitrogen Dioxide Column Retrievals Using the Absorbing Aerosol Index</title><author>Cooper, Matthew J. ; Martin, Randall V. ; Hammer, Melanie S. ; McLinden, Chris A.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c3065-ce838d6ac9bd1027c6475a301971af4fa82938dbba732d48fecf066d5ca80bdf3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2019</creationdate><topic>Absorption</topic><topic>Aerosol absorption</topic><topic>Aerosol effects</topic><topic>Aerosol scattering</topic><topic>Aerosols</topic><topic>Air masses</topic><topic>Chemical transport</topic><topic>Electromagnetic absorption</topic><topic>Gases</topic><topic>Light absorption</topic><topic>Meteorological satellites</topic><topic>Nitrogen dioxide</topic><topic>Organic chemistry</topic><topic>Radiative transfer</topic><topic>Satellite observation</topic><topic>Satellites</topic><topic>Scattering</topic><topic>Trace gases</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Cooper, Matthew J.</creatorcontrib><creatorcontrib>Martin, Randall V.</creatorcontrib><creatorcontrib>Hammer, Melanie S.</creatorcontrib><creatorcontrib>McLinden, Chris A.</creatorcontrib><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><jtitle>Geophysical research letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Cooper, Matthew J.</au><au>Martin, Randall V.</au><au>Hammer, Melanie S.</au><au>McLinden, Chris A.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>An Observation‐Based Correction for Aerosol Effects on Nitrogen Dioxide Column Retrievals Using the Absorbing Aerosol Index</atitle><jtitle>Geophysical research letters</jtitle><date>2019-07-28</date><risdate>2019</risdate><volume>46</volume><issue>14</issue><spage>8442</spage><epage>8452</epage><pages>8442-8452</pages><issn>0094-8276</issn><eissn>1944-8007</eissn><abstract>Retrievals of nitrogen dioxide (NO2) and other trace gases from satellite measurements rely on accurate calculation of an air mass factor (AMF) to account for the atmospheric light path. Scattering and absorption of sunlight by aerosols affects AMFs by impacting the sensitivity of satellite‐observed radiances to NO2 at different altitudes. Current NO2 retrievals either do not explicitly account for these effects or rely on aerosol information from an external source. Here we investigate a method for quantifying the impact of aerosols on NO2 AMFs using the Absorbing Aerosol Index, a satellite‐based measure of light absorption and scattering by aerosols. We find a robust relationship between the Absorbing Aerosol Index and the aerosol correction to NO2 AMFs using the GEOS‐Chem chemical transport model and the LIDORT radiative transfer model. This relationship enables estimating the impact of aerosols on AMFs using observed Absorbing Aerosol Index values, thus yielding an observation‐based aerosol correction for NO2 retrievals.
Key Points
Light absorption and scattering by aerosols impacts satellite instrument sensitivity to trace gases, affecting air mass factor calculations
We develop the first observation‐based constraints on aerosol impacts on NO2 air mass factor calculations
We show that Absorbing Aerosol Index measurements can predict aerosol impacts on NO2 air mass factors</abstract><cop>Washington</cop><pub>John Wiley & Sons, Inc</pub><doi>10.1029/2019GL083673</doi><tpages>11</tpages><orcidid>https://orcid.org/0000-0003-2632-8402</orcidid><orcidid>https://orcid.org/0000-0001-5054-1380</orcidid><orcidid>https://orcid.org/0000-0002-4145-3458</orcidid></addata></record> |
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| source | Wiley Online Library Journals Frontfile Complete; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; Wiley Free Content; Wiley-Blackwell AGU Digital Library |
| subjects | Absorption Aerosol absorption Aerosol effects Aerosol scattering Aerosols Air masses Chemical transport Electromagnetic absorption Gases Light absorption Meteorological satellites Nitrogen dioxide Organic chemistry Radiative transfer Satellite observation Satellites Scattering Trace gases |
| title | An Observation‐Based Correction for Aerosol Effects on Nitrogen Dioxide Column Retrievals Using the Absorbing Aerosol Index |
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