Relative contribution of submicron and supermicron particles to aerosol light scattering in the marine boundary layer

Christoph Kleefeld; Colin D. O'Dowd; Sarah O'Reilly; S. Gerard Jennings; Pasi Aalto; Edo Becker; Gerard Kunz; Gerrit De Leeuw

doi:10.1029/2000JD000262

Relative contribution of submicron and supermicron particles to aerosol light scattering in the marine boundary layer

Christoph Kleefeld
, Colin D. O'Dowd
, Sarah O'Reilly
, S. Gerard Jennings
, Pasi Aalto
, Edo Becker
, Gerard Kunz
, Gerrit De Leeuw

Physics

Research output: Contribution to a Journal (Peer & Non Peer) › Article › peer-review

66 Citations (Scopus)

Abstract

Measurements of the aerosol light scattering coefficient (σ_sp) at a wavelength of λ - 550 nm were conducted at a coastal atmospheric research station in the east Atlantic Ocean during June 1999. Size distribution measurements between diameters of 3 nm and 40 um (at ambient humidity) were used to derive scattering coefficients from Mie theory. The calculated scattering coefficients were about a factor of 7.4 higher than the measured scattering coefficients. The discrepancy was explained by a reduced cutoff of the sampling system at particle diameters between 6 and 8 μm, dependent on wind speed. The calculated aerosol scattering was about 1 order of magnitude higher than previously reported measurements in the MBL and is attributed to supermicrometer particles at sizes d > 10 μm dominating aerosol scattering.

Original language	English
Article number	8103
Number of pages	0
Journal	Journal of Geophysical Research
Volume	107
Issue number	19
DOIs	https://doi.org/10.1029/2000JD000262
Publication status	Published - Oct 2002

Keywords

Light scattering
Marine boundary layer
Mie theory
Particle size distribution
Sea-salt aerosol

Authors (Note for portal: view the doc link for the full list of authors)

Authors
Kleefeld, C;O'Dowd, CD;O'Reilly, S;Jennings, SG;Aalto, P;Becker, E;Kunz, G;de Leeuw, G

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10.1029/2000JD000262

Cite this

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title = "Relative contribution of submicron and supermicron particles to aerosol light scattering in the marine boundary layer",

abstract = "Measurements of the aerosol light scattering coefficient (σsp) at a wavelength of λ - 550 nm were conducted at a coastal atmospheric research station in the east Atlantic Ocean during June 1999. Size distribution measurements between diameters of 3 nm and 40 um (at ambient humidity) were used to derive scattering coefficients from Mie theory. The calculated scattering coefficients were about a factor of 7.4 higher than the measured scattering coefficients. The discrepancy was explained by a reduced cutoff of the sampling system at particle diameters between 6 and 8 μm, dependent on wind speed. The calculated aerosol scattering was about 1 order of magnitude higher than previously reported measurements in the MBL and is attributed to supermicrometer particles at sizes d > 10 μm dominating aerosol scattering.",

keywords = "Light scattering, Marine boundary layer, Mie theory, Particle size distribution, Sea-salt aerosol",

author = "Christoph Kleefeld and O'Dowd, \{Colin D.\} and Sarah O'Reilly and Jennings, \{S. Gerard\} and Pasi Aalto and Edo Becker and Gerard Kunz and \{De Leeuw\}, Gerrit",

year = "2002",

month = oct,

doi = "10.1029/2000JD000262",

language = "English",

volume = "107",

journal = "Journal of Geophysical Research",

issn = "0148-0227",

publisher = "Wiley-Blackwell",

number = "19",

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T1 - Relative contribution of submicron and supermicron particles to aerosol light scattering in the marine boundary layer

AU - Kleefeld, Christoph

AU - O'Dowd, Colin D.

AU - O'Reilly, Sarah

AU - Jennings, S. Gerard

AU - Aalto, Pasi

AU - Becker, Edo

AU - Kunz, Gerard

AU - De Leeuw, Gerrit

PY - 2002/10

Y1 - 2002/10

N2 - Measurements of the aerosol light scattering coefficient (σsp) at a wavelength of λ - 550 nm were conducted at a coastal atmospheric research station in the east Atlantic Ocean during June 1999. Size distribution measurements between diameters of 3 nm and 40 um (at ambient humidity) were used to derive scattering coefficients from Mie theory. The calculated scattering coefficients were about a factor of 7.4 higher than the measured scattering coefficients. The discrepancy was explained by a reduced cutoff of the sampling system at particle diameters between 6 and 8 μm, dependent on wind speed. The calculated aerosol scattering was about 1 order of magnitude higher than previously reported measurements in the MBL and is attributed to supermicrometer particles at sizes d > 10 μm dominating aerosol scattering.

AB - Measurements of the aerosol light scattering coefficient (σsp) at a wavelength of λ - 550 nm were conducted at a coastal atmospheric research station in the east Atlantic Ocean during June 1999. Size distribution measurements between diameters of 3 nm and 40 um (at ambient humidity) were used to derive scattering coefficients from Mie theory. The calculated scattering coefficients were about a factor of 7.4 higher than the measured scattering coefficients. The discrepancy was explained by a reduced cutoff of the sampling system at particle diameters between 6 and 8 μm, dependent on wind speed. The calculated aerosol scattering was about 1 order of magnitude higher than previously reported measurements in the MBL and is attributed to supermicrometer particles at sizes d > 10 μm dominating aerosol scattering.

KW - Light scattering

KW - Marine boundary layer

KW - Mie theory

KW - Particle size distribution

KW - Sea-salt aerosol

UR - https://www.scopus.com/pages/publications/33645038346

U2 - 10.1029/2000JD000262

DO - 10.1029/2000JD000262

M3 - Article

SN - 0148-0227

VL - 107

JO - Journal of Geophysical Research

JF - Journal of Geophysical Research

IS - 19

M1 - 8103

ER -

Relative contribution of submicron and supermicron particles to aerosol light scattering in the marine boundary layer

Abstract

Keywords

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