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dc.contributor.authorMueller, Detlef
dc.contributor.authorSawamura, Patricia
dc.contributor.authorMoore, Richard H.
dc.contributor.authorBurton, Sharon P.
dc.contributor.authorChemyakin, Edward
dc.contributor.authorKolgotin, Alexei
dc.contributor.authorFerrare, Richard A.
dc.contributor.authorHostetler, Chris A.
dc.contributor.authorZiemba, Luke D.
dc.contributor.authorBeyersdorf, Andreas J.
dc.contributor.authorAnderson, Bruce E.
dc.date.accessioned2017-06-22T16:34:40Z
dc.date.available2017-06-22T16:34:40Z
dc.date.issued2017-06-16
dc.identifier.citationMueller , D , Sawamura , P , Moore , R H , Burton , S P , Chemyakin , E , Kolgotin , A , Ferrare , R A , Hostetler , C A , Ziemba , L D , Beyersdorf , A J & Anderson , B E 2017 , ' HSRL-2 aerosol optical measurements and microphysical retrievals vs. airborne in situ measurements during DISCOVER-AQ 2013: an intercomparison study ' , Atmospheric Chemistry and Physics , vol. 17 , no. 11 , pp. 7229-7243 . https://doi.org/10.5194/acp-17-7229-2017
dc.identifier.issn1680-7316
dc.identifier.otherPURE: 11876310
dc.identifier.otherPURE UUID: 6190329b-b032-4860-a29c-950cd70b3dce
dc.identifier.otherScopus: 85020901381
dc.identifier.urihttp://hdl.handle.net/2299/18477
dc.descriptionThis is an Open Access article distributed under the Creative Commons Attribution 3.0 License, https://creativecommons.org/licenses/by/3.0/. © Author(s) 2017. Published by Copernicus Publications on behalf of the European Geosciences Union.
dc.description.abstractWe present a detailed evaluation of remotely-sensed aerosol microphysical properties obtained from an advanced, multi-wavelength High Spectral Resolution Lidar (HSRL-2) during the 2013 NASA DISCOVER-AQ field campaign. Vertically resolved retrievals of fine mode aerosol number, surface area, and volume concentration as well as aerosol effective radius are compared to 108 co-located, airborne in situ measurement profiles in the wintertime San Joaquin Valley, California, and in summertime Houston, Texas. An algorithm for relating the dry in situ aerosol properties to those obtained by the HSRL at ambient relative humidity is discussed. We show that the HSRL-2 retrievals of ambient fine mode aerosol surface area and volume concentrations agree with the in situ measurements to within 25% and 10%, respectively, once hygroscopic growth adjustments have been applied to the dry in situ data. Despite this excellent agreement for the microphysical properties, extinction and backscatter coefficients at ambient relative humidity derived from the in situ aerosol measurements using Mie theory are consistently smaller than those measured by the HSRL, with average differences of 31% 5% and 53% 11% for California and Texas, respectively. This low bias in the in situ estimates is attributed to the presence of coarse mode aerosol that are detected by HSRL-2 but that are too large to be well sampled by the in situ instrumentation. Since the retrieval of aerosol volume is most relevant to current regulatory efforts targeting fine particle mass (PM2:5), these findings highlight the advantages of an advanced 3+2 HSRL for constraining the vertical distribution of the aerosol volume or mass loading relevant for air quality.en
dc.language.isoeng
dc.relation.ispartofAtmospheric Chemistry and Physics
dc.rightsOpen
dc.titleHSRL-2 aerosol optical measurements and microphysical retrievals vs. airborne in situ measurements during DISCOVER-AQ 2013: : an intercomparison studyen
dc.contributor.institutionSchool of Physics, Astronomy and Mathematics
dc.contributor.institutionCentre for Atmospheric and Climate Physics Research
dc.description.statusPeer reviewed
dc.relation.schoolSchool of Physics, Astronomy and Mathematics
dc.description.versiontypeFinal Published version
dcterms.dateAccepted2017-06-16
rioxxterms.versionAM
rioxxterms.versionVoR
rioxxterms.versionofrecordhttps://doi.org/10.5194/acp-17-7229-2017
rioxxterms.licenseref.urihttp://creativecommons.org/licenses/by/4.0/
rioxxterms.typeJournal Article/Review
herts.preservation.rarelyaccessedtrue
herts.rights.accesstypeOpen


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