Indirect and semi-direct aerosol campaign: The impact of arctic aerosols on clouds

Greg M. McFarquhar, Steven Ghan, Johannes Verlinde, Alexei Korolev, J. Walter Strapp, Beat Schmid, Jason M. Tomlinson, Mengistu Wolde, Sarah D. Brooks, Dan Cziczo, Manvendra K. Dubey, Jiwen Fan, Connor Flynn, Ismail Gultepe, John Hubbe, Mary K. Gilles, Alexander Laskin, Paul Lawson, W. Richard Leaitch, Peter LiuXiaohong Liu, Dan Lubin, Claudio Mazzoleni, Ann Marie MacDonald, Ryan C. Moffet, Hugh Morrison, Mikhail Ovchinnikov, Matthew D. Shupe, David D. Turner, Shaocheng Xie, Alla Zelenyuk, Kenny Bae, Matt Freer, Andrew Glen

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Abstract

An overview of Indirect and Semi-Direct Aerosol Campaign (ISDAC), aimed to study the impact of Arctic aerosol on clouds, is provided. The general theme of the campaign was to provide detailed observations of aerosols and clouds and gather high-quality data needed to improve the treatment of clouds and aerosols in climate models. The NRC Convair-580 was used for the in situ measurements of clouds, aerosols, and state parameters, and for active and passive remote sensing observations. The results show that ice nuclei (IN) concentrations in the Arctic are generally low, making accurate IN measurements a challenge. Many aerosol layers had horizontal and vertical filamentous structures, in which aerosol number concentration, their size distributions, and compositions varied rapidly along the flight paths.

Original languageEnglish (US)
Pages (from-to)183-201
Number of pages19
JournalBulletin of the American Meteorological Society
Volume92
Issue number2
DOIs
StatePublished - Feb 1 2011

All Science Journal Classification (ASJC) codes

  • Atmospheric Science

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    McFarquhar, G. M., Ghan, S., Verlinde, J., Korolev, A., Strapp, J. W., Schmid, B., Tomlinson, J. M., Wolde, M., Brooks, S. D., Cziczo, D., Dubey, M. K., Fan, J., Flynn, C., Gultepe, I., Hubbe, J., Gilles, M. K., Laskin, A., Lawson, P., Leaitch, W. R., ... Glen, A. (2011). Indirect and semi-direct aerosol campaign: The impact of arctic aerosols on clouds. Bulletin of the American Meteorological Society, 92(2), 183-201. https://doi.org/10.1175/2010BAMS2935.1