The Segregation of Aerosols by Cloud-Nucleating Activity. Part II: Observation of an Urban AerosolSource: Journal of Climate and Applied Meteorology:;1985:;volume( 024 ):;issue: 004::page 312Author:Harrison, Lee
DOI: 10.1175/1520-0450(1985)024<0312:TSOABC>2.0.CO;2Publisher: American Meteorological Society
Abstract: The submicron aerosol of metropolitan Seattle was segregated into CCN and non-CCN fractions by a high-flux thermal diffusion cloud chamber in series with a dichotomous separator. Each segregated fraction of the five-hour daily sample was deposited on a filter, and analyzed for mass, optical absorption, sulfate and nitrate. Results are presented in context with the meteorological record. A new finding of this study is that the mean non-CCN mass fraction of the submicron aerosol was greater than 50%. The sulfate, nitrate, and optical absorption partitioned between the CCN and non-CCN fractions. The mean ratio of optical absorption to mass concentration suggests that both the non-CCN and CCN fractions contain soot. The CCN optical absorption and sulfate concentration am modulated by rainfall events.
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contributor author | Harrison, Lee | |
date accessioned | 2017-06-09T14:00:32Z | |
date available | 2017-06-09T14:00:32Z | |
date copyright | 1985/04/01 | |
date issued | 1985 | |
identifier issn | 0733-3021 | |
identifier other | ams-10830.pdf | |
identifier uri | http://onlinelibrary.yabesh.ir/handle/yetl/4145991 | |
description abstract | The submicron aerosol of metropolitan Seattle was segregated into CCN and non-CCN fractions by a high-flux thermal diffusion cloud chamber in series with a dichotomous separator. Each segregated fraction of the five-hour daily sample was deposited on a filter, and analyzed for mass, optical absorption, sulfate and nitrate. Results are presented in context with the meteorological record. A new finding of this study is that the mean non-CCN mass fraction of the submicron aerosol was greater than 50%. The sulfate, nitrate, and optical absorption partitioned between the CCN and non-CCN fractions. The mean ratio of optical absorption to mass concentration suggests that both the non-CCN and CCN fractions contain soot. The CCN optical absorption and sulfate concentration am modulated by rainfall events. | |
publisher | American Meteorological Society | |
title | The Segregation of Aerosols by Cloud-Nucleating Activity. Part II: Observation of an Urban Aerosol | |
type | Journal Paper | |
journal volume | 24 | |
journal issue | 4 | |
journal title | Journal of Climate and Applied Meteorology | |
identifier doi | 10.1175/1520-0450(1985)024<0312:TSOABC>2.0.CO;2 | |
journal fristpage | 312 | |
journal lastpage | 321 | |
tree | Journal of Climate and Applied Meteorology:;1985:;volume( 024 ):;issue: 004 | |
contenttype | Fulltext |