Effects of varying aerosol regimes on low-level Arctic stratus

T. J. Garrett; C. Zhao; X. Dong; G. G. Mace; P. V. Hobbs

doi:10.1029/2004GL019928

Effects of varying aerosol regimes on low-level Arctic stratus

T. J. Garrett, C. Zhao, X. Dong, G. G. Mace, P. V. Hobbs

Research output: Contribution to journal › Article › peer-review

116 Scopus citations

Abstract

The effects on low-level cloud microstructures of varying aerosol regimes in the Arctic are examined using ground-based measurements obtained near Barrow, Alaska. Episodic 'arctic haze' events produced high cloud droplet concentrations, and small cloud droplet effective radii. By contrast, the fresh nucleation of aerosols within the Arctic produced particles high in number concentration but generally too small to be efficient cloud condensation nuclei. Comparisons with similar analyses done at lower latitudes suggest that the 'indirect effect' of haze aerosol on low-cloud effective radii is particularly high in the Arctic.

Original language	English (US)
Pages (from-to)	L17105 1-4
Journal	Geophysical Research Letters
Volume	31
Issue number	17
DOIs	https://doi.org/10.1029/2004GL019928
State	Published - Sep 16 2004
Externally published	Yes

Keywords

0305 Atmospheric composition and structure: Aerosols and particle (3045, 4801)
0320 Atmospheric composition and structure: Cloud physics chemistry
0343 Atmospheric composition and structure: Planetary atmospheres (0505, 5407, 5409, 5704, 5705, 5707)
0368 Atmospheric composition and structure: Troposphere-constituent transport and chemistry
3349 Meteorology and atmospheric dynamics: Polar meteorology

ASJC Scopus subject areas

Geophysics
General Earth and Planetary Sciences

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10.1029/2004GL019928

Cite this

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abstract = "The effects on low-level cloud microstructures of varying aerosol regimes in the Arctic are examined using ground-based measurements obtained near Barrow, Alaska. Episodic 'arctic haze' events produced high cloud droplet concentrations, and small cloud droplet effective radii. By contrast, the fresh nucleation of aerosols within the Arctic produced particles high in number concentration but generally too small to be efficient cloud condensation nuclei. Comparisons with similar analyses done at lower latitudes suggest that the 'indirect effect' of haze aerosol on low-cloud effective radii is particularly high in the Arctic.",

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AU - Garrett, T. J.

AU - Zhao, C.

AU - Dong, X.

AU - Mace, G. G.

AU - Hobbs, P. V.

PY - 2004/9/16

Y1 - 2004/9/16

N2 - The effects on low-level cloud microstructures of varying aerosol regimes in the Arctic are examined using ground-based measurements obtained near Barrow, Alaska. Episodic 'arctic haze' events produced high cloud droplet concentrations, and small cloud droplet effective radii. By contrast, the fresh nucleation of aerosols within the Arctic produced particles high in number concentration but generally too small to be efficient cloud condensation nuclei. Comparisons with similar analyses done at lower latitudes suggest that the 'indirect effect' of haze aerosol on low-cloud effective radii is particularly high in the Arctic.

AB - The effects on low-level cloud microstructures of varying aerosol regimes in the Arctic are examined using ground-based measurements obtained near Barrow, Alaska. Episodic 'arctic haze' events produced high cloud droplet concentrations, and small cloud droplet effective radii. By contrast, the fresh nucleation of aerosols within the Arctic produced particles high in number concentration but generally too small to be efficient cloud condensation nuclei. Comparisons with similar analyses done at lower latitudes suggest that the 'indirect effect' of haze aerosol on low-cloud effective radii is particularly high in the Arctic.

KW - 0305 Atmospheric composition and structure: Aerosols and particle (3045, 4801)

KW - 0320 Atmospheric composition and structure: Cloud physics chemistry

KW - 0343 Atmospheric composition and structure: Planetary atmospheres (0505, 5407, 5409, 5704, 5705, 5707)

KW - 0368 Atmospheric composition and structure: Troposphere-constituent transport and chemistry

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JO - Geophysical Research Letters

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Effects of varying aerosol regimes on low-level Arctic stratus

Abstract

Keywords

ASJC Scopus subject areas

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