A new method to determine the mixing state of light absorbing carbonaceous using the measured aerosol optical properties and number size distributions
dc.bibliographicCitation.firstPage | 2381 | eng |
dc.bibliographicCitation.issue | 5 | eng |
dc.bibliographicCitation.lastPage | 2397 | eng |
dc.bibliographicCitation.volume | 12 | |
dc.contributor.author | Ma, N. | |
dc.contributor.author | Zhao, C.S. | |
dc.contributor.author | Müller, T. | |
dc.contributor.author | Cheng, Y.F. | |
dc.contributor.author | Liu, P.F. | |
dc.contributor.author | Deng, Z.Z. | |
dc.contributor.author | Xu, W.Y. | |
dc.contributor.author | Ran, L. | |
dc.contributor.author | Nekat, B. | |
dc.contributor.author | van Pinxteren, D. | |
dc.contributor.author | Gnauk, T. | |
dc.contributor.author | Müller, K. | |
dc.contributor.author | Herrmann, H. | |
dc.contributor.author | Yan, P. | |
dc.contributor.author | Zhou, X.J. | |
dc.contributor.author | Wiedensohler, A. | |
dc.date.accessioned | 2017-11-17T00:53:15Z | |
dc.date.available | 2019-06-26T17:18:09Z | |
dc.date.issued | 2012 | |
dc.description.abstract | In this paper, the mixing state of light absorbing carbonaceous (LAC) was investigated with a two-parameter aerosol optical model and in situ aerosol measurements at a regional site in the North China Plain (NCP). A closure study between the hemispheric backscattering fraction (HBF) measured by an integrating nephelometer and that calculated with a modified Mie model was conducted. A new method was proposed to retrieve the ratio of the externally mixed LAC mass to the total mass of LAC (rext-LAC) based on the assumption that the ambient aerosol particles were externally mixed and consisted of a pure LAC material and a core-shell morphology in which the core is LAC and the shell is a less absorbing material. A Monte Carlo simulation was applied to estimate the overall influences of input parameters of the algorithm to the retrieved rext-LAC. The diurnal variation of rext-LAC was analyzed and the PartMC-MOSAIC model was used to simulate the variation of the aerosol mixing state. Results show that, for internally mixed particles, the assumption of core-shell mixture is more appropriate than that of homogenous mixture which has been widely used in aerosol optical calculations. A significant diurnal pattern of the retrieved rext-LAC was found, with high values during the daytime and low values at night. The consistency between the retrieved rext-LAC and the model results indicates that the diurnal variation of LAC mixing state is mainly caused by the diurnal evolution of the mixing layer. | eng |
dc.description.version | publishedVersion | eng |
dc.format | application/pdf | |
dc.identifier.uri | https://doi.org/10.34657/742 | |
dc.identifier.uri | https://oa.tib.eu/renate/handle/123456789/523 | |
dc.language.iso | eng | eng |
dc.publisher | München : European Geopyhsical Union | eng |
dc.relation.doi | https://doi.org/10.5194/acp-12-2381-2012 | |
dc.relation.ispartofseries | Atmospheric Chemistry and Physics, Volume 12, Issue 5, Page 2381-2397 | eng |
dc.rights.license | CC BY 3.0 Unported | eng |
dc.rights.uri | https://creativecommons.org/licenses/by/3.0/ | eng |
dc.subject | aerosol property | eng |
dc.subject | algorithm | eng |
dc.subject | backscatter | eng |
dc.subject | diurnal variation | eng |
dc.subject | Mie theory | eng |
dc.subject | Monte Carlo analysis | eng |
dc.subject | size distribution | eng |
dc.subject.ddc | 550 | eng |
dc.title | A new method to determine the mixing state of light absorbing carbonaceous using the measured aerosol optical properties and number size distributions | eng |
dc.type | article | eng |
dc.type | Text | eng |
dcterms.bibliographicCitation.journalTitle | Atmospheric Chemistry and Physics | eng |
tib.accessRights | openAccess | eng |
wgl.contributor | TROPOS | eng |
wgl.subject | Geowissenschaften | eng |
wgl.type | Zeitschriftenartikel | eng |
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