Worldwide data sets constrain the water vapor uptake coefficient in cloud formation

Raatikainen T.; Nenes A.; Seinfeld J.H.Morales R.Moore R.H.Lathem T.L.Lance S.Padró L.T.Lin J.J.Cerully K.M.Bougiatioti A.Cozicl J.Ruehl C.R.Chuang P.Y.Anderson B.E.Flagan R.C.Jonsson H.Mihalopoulos N.Smith J.N.

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Worldwide data sets constrain the water vapor uptake coefficient in cloud formation

机译：Worldwide data sets constrain the water vapor uptake coefficient in cloud formation

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Cloud droplet formation depends on the condensation of water vapor on ambient aerosols, the rate of which is strongly affected by the kinetics of water uptake as expressed by the condensation (or mass accommodation) coefficient, αc. Estimates of αc for droplet growth from activation of ambient particles vary considerably and represent a critical source of uncertainty in estimates of global cloud droplet distributions and the aerosol indirect forcing of climate. We present an analysis of 10 globally relevant data sets of cloud condensation nuclei to constrain the value ofαc forambient aerosol.Wefind that rapid activation kinetics (αc > 0.1) is uniformly prevalent. This finding resolves a long-standing issue in cloud physics, as the uncertainty in water vapor accommodation on droplets is considerably less than previously thought.

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《Proceedings of the National Academy of Sciences of the United States of America》 |2013年第10期|3760-3764|共5页
作者
Raatikainen T.; Nenes A.; Seinfeld J.H.Morales R.Moore R.H.Lathem T.L.Lance S.Padró L.T.Lin J.J.Cerully K.M.Bougiatioti A.Cozicl J.Ruehl C.R.Chuang P.Y.Anderson B.E.Flagan R.C.Jonsson H.Mihalopoulos N.Smith J.N.;
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作者单位

Department of Earth and Atmospheric Sciences, Georgia Institute of Technology, Atlanta, GA 30332, United States;

Department of Chemical Engineering, California Institute of Technology, Pasadenda, CA 91106, United States;

Department of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, GA 30332, United StatesDepartment of National Oceanic and Atmospheric Administration, Earth System Research Laboratory, Chemical Sciences Division, Boulder, CO 80305, United StatesLawrence Berkeley National Lab, Berkeley, CA 94720, United StatesDepartment of Earth and Planetary Sciences, University of California, Santa Cruz, CA 95064, United StatesNASA Langley Research Center, Hampton, VA 23681, United StatesNaval Postgraduate School, Monterey, CA 93943, United StatesFoundation for Research and Technology Hellas, Institute of Chemical Engineering and High Temperature Chemical Processes, 711 10 Patras, GreeceNational Center for Atmospheric Research, Atmospheric Chemistry Division, Boulder, CO 80305, United States;

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收录信息美国《科学引文索引》(SCI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
原文格式 PDF
正文语种英语
中图分类自然科学总论;
关键词
Global climate; Hydrological cycle; Precipitation;

Worldwide data sets constrain the water vapor uptake coefficient in cloud formation

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