A simple relationship between cloud drop number concentration and precursor aerosol concentration for the regions of Earth's large marine stratocumulus decks

A simple relationship between cloud drop number concentration and precursor aerosol concentration for the regions of Earth's large marine stratocumulus decks

Aircraft–based measurements of cloud condensation nuclei (CCN), accumulation mode and Aitken mode number concentrations, cloud drop number concentration (CDNC), and selected ancillary measurements are presented for the three large, semi-permanent marine stratocumulus decks of the earth (in the Pacif...

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Main Authors: D. A. Hegg, D. S. Covert, H. H. Jonsson, R. K. Woods
Format: Article
Language:English
Published: Copernicus Publications 2012-02-01
Series:Atmospheric Chemistry and Physics
Online Access:http://www.atmos-chem-phys.net/12/1229/2012/acp-12-1229-2012.pdf
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spelling doaj-6cec1b89f21c4047887d56a9d42568262020-11-25T01:20:08ZengCopernicus PublicationsAtmospheric Chemistry and Physics1680-73161680-73242012-02-011231229123810.5194/acp-12-1229-2012A simple relationship between cloud drop number concentration and precursor aerosol concentration for the regions of Earth's large marine stratocumulus decksD. A. HeggD. S. CovertH. H. JonssonR. K. WoodsAircraft–based measurements of cloud condensation nuclei (CCN), accumulation mode and Aitken mode number concentrations, cloud drop number concentration (CDNC), and selected ancillary measurements are presented for the three large, semi-permanent marine stratocumulus decks of the earth (in the Pacific offshore of California and Chile and in the Atlantic offshore of Namibia). Based on these data, a simple linear relationship between CDNC and the accumulation mode number concentration (AMNC) is derived via regression. The slope of the regression is 0.72 ± 0.04 with an <i>R</i><sup>2</sup> of 0.90, higher than those found for CDNC-CCN linear regressions. Explanations of the relatively favorable CDNC-AMNC relationship and its utility for climate studies are discussed.http://www.atmos-chem-phys.net/12/1229/2012/acp-12-1229-2012.pdf
collection DOAJ
language English
format Article
sources DOAJ
author D. A. Hegg
D. S. Covert
H. H. Jonsson
R. K. Woods
spellingShingle D. A. Hegg
D. S. Covert
H. H. Jonsson
R. K. Woods
A simple relationship between cloud drop number concentration and precursor aerosol concentration for the regions of Earth's large marine stratocumulus decks
Atmospheric Chemistry and Physics
author_facet D. A. Hegg
D. S. Covert
H. H. Jonsson
R. K. Woods
author_sort D. A. Hegg
title A simple relationship between cloud drop number concentration and precursor aerosol concentration for the regions of Earth's large marine stratocumulus decks
title_short A simple relationship between cloud drop number concentration and precursor aerosol concentration for the regions of Earth's large marine stratocumulus decks
title_full A simple relationship between cloud drop number concentration and precursor aerosol concentration for the regions of Earth's large marine stratocumulus decks
title_fullStr A simple relationship between cloud drop number concentration and precursor aerosol concentration for the regions of Earth's large marine stratocumulus decks
title_full_unstemmed A simple relationship between cloud drop number concentration and precursor aerosol concentration for the regions of Earth's large marine stratocumulus decks
title_sort simple relationship between cloud drop number concentration and precursor aerosol concentration for the regions of earth's large marine stratocumulus decks
publisher Copernicus Publications
series Atmospheric Chemistry and Physics
issn 1680-7316
1680-7324
publishDate 2012-02-01
description Aircraft–based measurements of cloud condensation nuclei (CCN), accumulation mode and Aitken mode number concentrations, cloud drop number concentration (CDNC), and selected ancillary measurements are presented for the three large, semi-permanent marine stratocumulus decks of the earth (in the Pacific offshore of California and Chile and in the Atlantic offshore of Namibia). Based on these data, a simple linear relationship between CDNC and the accumulation mode number concentration (AMNC) is derived via regression. The slope of the regression is 0.72 ± 0.04 with an <i>R</i><sup>2</sup> of 0.90, higher than those found for CDNC-CCN linear regressions. Explanations of the relatively favorable CDNC-AMNC relationship and its utility for climate studies are discussed.
url http://www.atmos-chem-phys.net/12/1229/2012/acp-12-1229-2012.pdf
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