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dc.contributor.authorCohen, Jason Blake
dc.contributor.authorPrinn, Ronald G.
dc.contributor.authorWang, Chien
dc.date.accessioned2012-10-16T13:17:49Z
dc.date.available2012-10-16T13:17:49Z
dc.date.issued2011-05
dc.date.submitted2011-04
dc.identifier.issn0094-8276
dc.identifier.urihttp://hdl.handle.net/1721.1/74005
dc.description.abstractDetailed urban-scale processing has not been included in global 3D chemical transport models due to its large computational demands. Here we present a metamodel for including this processing, and compare it with the use of the traditional approach of dilution of emissions into large grid boxes. This metamodel is used in a global 3D model to simulate the effects of cities around the world on aerosol chemistry, physics, and radiative effects at the global scale. We show that the biases caused by ignoring urban processing on the global values of total aerosol surface concentration, the total aerosol column abundance, the aerosol optical depth (AOD), the absorbing aerosol optical depth (AAOD), and the top of the atmosphere radiative forcing (TOA) respectively are +26 ± +26 ± [subscript 3[superscript 2]]%, +51 ± +26 ± [subscript 10[superscript 12]]%, +42 ± [subscript 8[superscript 10]]%, +8 ± [subscript 16[superscript 18]]%, and −0.27 ± [subscript 0.14[superscript 0.10]] W/m2. These results show that failure to consider urban scale processing leads to significantly more negative aerosol radiative forcing compared to when detailed urban scale processing is considered.en_US
dc.description.sponsorshipUnited States. Dept. of Energy (Grant DE‐FG02‐94ER61937)en_US
dc.description.sponsorshipNational Science Foundation (U.S.) (Grant AGS‐0944121)en_US
dc.description.sponsorshipSingapore. National Research Foundationen_US
dc.description.sponsorshipSingapore-MIT Alliance. Center for Environmental Sensing and Monitoringen_US
dc.language.isoen_US
dc.publisherAmerican Geophysical Union (AGU)en_US
dc.relation.isversionofhttp://dx.doi.org/10.1029/2011gl047417en_US
dc.rightsArticle is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.en_US
dc.sourceMIT web domainen_US
dc.titleThe impact of detailed urban-scale processing on the composition, distribution, and radiative forcing of anthropogenic aerosolsen_US
dc.typeArticleen_US
dc.identifier.citationCohen, Jason Blake, Ronald G. Prinn, and Chien Wang. “The Impact of Detailed Urban-scale Processing on the Composition, Distribution, and Radiative Forcing of Anthropogenic Aerosols.” Geophysical Research Letters 38.10 (2011). ©2011 American Geophysical Unionen_US
dc.contributor.departmentMassachusetts Institute of Technology. Center for Global Change Scienceen_US
dc.contributor.departmentMassachusetts Institute of Technology. Joint Program on the Science & Policy of Global Changeen_US
dc.contributor.mitauthorCohen, Jason Blake
dc.contributor.mitauthorPrinn, Ronald G.
dc.contributor.mitauthorWang, Chien
dc.relation.journalGeophysical Research Lettersen_US
dc.eprint.versionFinal published versionen_US
dc.type.urihttp://purl.org/eprint/type/JournalArticleen_US
eprint.statushttp://purl.org/eprint/status/PeerRevieweden_US
dspace.orderedauthorsCohen, Jason Blake; Prinn, Ronald G.; Wang, Chienen
dc.identifier.orcidhttps://orcid.org/0000-0001-5925-3801
dc.identifier.orcidhttps://orcid.org/0000-0002-3979-4747
mit.licensePUBLISHER_POLICYen_US
mit.metadata.statusComplete


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