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Original Research Papers

The influence of the organic aerosol component on CCN supersaturation spectra for different aerosol types

Authors:

Mihaela Mircea ,

Istituto di Scienze dell’Atmosfera e dell’Oceano, Consiglio Nazionale delle Ricerche (ISAO-CNR), IT
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Maria Cristina Facchini,

Istituto di Scienze dell’Atmosfera e dell’Oceano, Consiglio Nazionale delle Ricerche (ISAO-CNR), IT
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Stefano Decesari,

Istituto di Scienze dell’Atmosfera e dell’Oceano, Consiglio Nazionale delle Ricerche (ISAO-CNR), IT
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Sandro Fuzzi,

Istituto di Scienze dell’Atmosfera e dell’Oceano, Consiglio Nazionale delle Ricerche (ISAO-CNR), IT
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Robert J. Charlson

Departments of Atmospheric Sciences and Chemistry, University of Washington, US
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Abstract

This paper describes the effect of the presence of water-soluble organic compounds (WSOC) in aerosol particles on the aerosol critical supersaturation as defined by the Köhler theory and on cloud condensation nuclei (CCN) number concentration. Taking into account both the soluble mass increase and the surface tension depression due to WSOC, we calculated a substantial decrease of the aerosol critical supersaturation, which results in a large increase in CCN number concentration. CCN supersaturation spectra were computed for three different aerosol types: marine, rural and urban. The increase of CCN number concentration in the presence of WSOC (with respect to the case when only the inorganic aerosol compounds are considered) varies with aerosol type, with an increase up to 13% in the marine case, up to 97% in the rural case, and up to 110% in the urban case, for the supersaturation range typical of atmospheric conditions.

How to Cite: Mircea, M., Facchini, M.C., Decesari, S., Fuzzi, S. and Charlson, R.J., 2002. The influence of the organic aerosol component on CCN supersaturation spectra for different aerosol types. Tellus B: Chemical and Physical Meteorology, 54(1), pp.74–81. DOI: http://doi.org/10.3402/tellusb.v54i1.16649
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  Published on 01 Jan 2002
 Accepted on 30 Oct 2001            Submitted on 10 Oct 2000

References

  1. Boers , R. , Ayers , G. P. and Gras , J. L . 1994 . Coherence between seasonal variation in satellite derived cloud optical depth and boundary layer CCN concentrations at a mid-latitude southern hemisphere station. Tellus 47B , 123 – 131 .  

  2. Boucher , O. and Lohmann , U. 1995 . The sulphate-CCN-cloud albedo effect. A sensitivity study with two general circulation models. Tellus 47B , 281 - 300 .  

  3. Carslaw , K. S. , Clegg , S. L. and Brimblecombe , P . 1995 . A thermodynamic model of the system HC1-HNO3-112SO4-1120, including solubilities of HBr, from 200 K to 328 K. J. Phys. Chem . 99 , 11,557 - 11,574.  

  4. Clegg , S. L. , Brimblecombe , P. and Wexler , A. S. 1998a. A thermodynamic model of the system H-N114-SO4-NO3-1120 at tropospheric temperatures. J. Phys. Chem . 102A , 2137 – 2154 .  

  5. Clegg , S. L. , Brimblecombe , P. and Wexler , A. S . 1998b . A thermodynamic model of the system H-NH4-Na-SO4-NO3-C1-H20 at 298.15 K. J. Phys. Chem . 102A , 2155 – 2171 .  

  6. Decesari , S. , Facchini , M. C. , DIM , S. and Tagliavini , E . 2000 . Characterization of water soluble organic com-pounds in atmospheric aerosol: a new approach. J. Geophys. Res . 105 , 1481 – 1489 .  

  7. Doyle , G. J . 1961 . Self-nucleation in the sulfuric acid-water system. J. Chem. Phys . 35 , 795 – 799 .  

  8. Facchini , M .C. , Mircea , M. , Fuzzi , S. and Charlson , R. J . 1999a . Cloud albedo enhancement by surface-active organic solutes in growing droplets. Nature 401 , 257 – 259 .  

  9. Facchini , M. C. , DIM , S. , Zapoli , S. , Andracchio , A. , Gelencsér , A. , Kiss , G. , Krivacsy , Z. , Mészáros , E. , Hansson , H.-C. , Alsberg , T. and Zebühr , Y . 1999b . Partitioning of the organic aerosol component between fog droplets and interstitial aerosol. J. Geo-phys. Res . 104 , 26,821 - 26,832 .  

  10. Facchini , M. C. , Decesari , S. , Mircea , M. , Fuzzi , S. and Loglio , G . 2000 . Surface tension of atmospheric wet aerosol and cloud/fog droplets in relation to their organic carbon content and chemical composition. Atmos. Environ . 34 , 4853 – 4857 .  

  11. Fitzgerald , J. W . 1973 . Dependence of the supersat-uration spectrum of CCN on aerosol size distribution and composition. J. Atmos. Sci . 30 , 628 – 634 .  

  12. Han , Q. , Rossow , W. B. and Lacis , A. A . 1994 . Near-global survey of effective droplet radii in liquid water clouds using ISCCP data. J. Climate 7 , 465 - 497 .  

  13. Hegg , D. A. , Radke , L. F. and Hobbs , P. V. 1991 . Measurements of Aitken nuclei and cloud condensation nuclei in the marine atmosphere and their relation to the DMS-cloud climate hypothesis . J. Geophys. Res . 96 , 18,727 - 18,733 .  

  14. Herbert , F . 1986 . CCN-equilibrium theory. Meteorol. Rdsch . 39 , 82 – 87 .  

  15. Hindman , E. E. and Bodowski , R . 1994 . A marine stratus layer modified by ship-produced CCN and updrafts. Preprints, 6th WMO Scientific Conference on Weather Modification, Sienna.  

  16. Hindman , E. E. , Porch , W. M. , Hudson , J. D. and Durkee , P. A . 1995 . Ship produced cloud lines of 13 July 1991. Atmos. Environ . 38 , 3393 – 3403 .  

  17. Hobbs , P. V. , Bowdle , D. A. and Radke , L. F . 1985 . Particles in the lower troposphere over the high plains of the United States, 1. Size distributions, elemental compositions and morphologies. J. Clim. Appl. Meteorol . 24 , 1344 – 1356 .  

  18. Hoppel , W. A. , Fitzgerald , J. W. , Frick , G. M. and Larson , R. E . 1990 . Aerosol size distributions and optical properties found in the marine boundary layer over the Atlantic Ocean. J. Geophys. Res . 95 , 3659 .  

  19. Intergovernmental Panel on Climate Change 1995 . Climate Change 1995. The science of climate change (eds. Houghton, J. T. et al). Cambridge University Press, Cambridge, 1996.  

  20. Jaenicke , R . 1993 . Tropospheric aerosols in: Aerosol-cloud-climate interactions (ed. P. V. Hobbs). Academic Press, San Diego, CA, pp. 1 - 31 .  

  21. Jiusto , J. E. and Lala , G.G . 1981 . CCN-supersaturation spectra slopes (k). J. Rech. Atm. 15 , 303 – 311 .  

  22. Jones , A. , Roberts , D. L. and Slingo , A . 1994 . A climate model study of indirect radiative forcing by anthropo-genic sulphate aerosols. Nature 370 , 450 – 453 .  

  23. Junge , C. and McLaren , E . 1971 . Relationship of cloud condensation nuclei spectra to aerosol size distribution and composition. J. Atmos. Sci . 28 , 382 – 390 .  

  24. Khain , A. , Pokrovsky , A. and Sednev , I . 1999 . Some effects of cloud-aerosol interaction on cloud micro-physics structure and precipitation formation: numer-ical experiments with a spectral microphysics cloud ensemble model. Atmos. Res . 52 , 195 – 220 .  

  25. Konopka , P . 1996 . A reexamination of the derivation of the equilibrium supersaturation curve for soluble particles. J. Atmos. Sci . 53 , 3157 – 3163 .  

  26. Laaksonen , A. , Korhonen , P. , Kulmala , M. and Charl-son , R. J . 1998 . Modification of the Kohler equation to include soluble trace gases and slightly soluble substances. J. Atmos. Sci . 55 , 853 – 862 .  

  27. Putaud , J. P. , Van Dingenen , R. , Mangoni , M. , Virkkula , A. , Raes , F. , Maring , H. , Prospero , J. M. , Swietlicki , E. , Berg , O. H. , Hillamo , R. and Makela , T. 2000. Chemical mass closure and assessment of the origin of the submicron aerosol in the marine boundary layer and the free troposphere at Tenerife during ACE-2. Tellus 52B , 141 - 168 .  

  28. Pruppacher , H. R. and Klett , J. D . 1997 . Microphysics of clouds and precipitation. Kluwer Academic Publishers , Dordrecht , 955 pp .  

  29. Reiss , H . 1950 . The kinetics of phase transitions in binary systems. J. Chem. Phys . 18 , 840 – 848 .  

  30. Rosenfeld , D . 2000 . Suppression of rain and snow by urban and industrial air pollution. Science 287 , 1793 – 1796 .  

  31. Saxena , P. and Hildemann , L. M . 1996 . Water-soluble organics in atmospheric particles: a critical review of the literature and application of thermodynamics to identify candidate compounds. J. Atmos. Chem . 24 , 57 – 109 .  

  32. Schwartz , S. E. and Slingo , A . 1996 . Enhanced shortwave cloud radiative forcing due to anthropogenic aerosols. Cloud, chemistry and climate (eds. P. J. Crutzen and V. Ramanathan). Springer , 1995 , 191 – 236 .  

  33. Shulman , M. L , Jacobson , M. C. , Charlson , R. J. , Syno-vec , R. E. and Young , T. E . 1996 . Dissolution behavi-our and surface tension effects of organic compounds in nucleating cloud droplets. Geophys. Res. Lett . 23 , 277 – 280 .  

  34. Twomey , S. and Wojciechowski , T. A . 1969 . Observa-tions of the geographical variations of cloud nuclei. J. Atmos. Sci . 26 , 684 – 688 .  

  35. von der Emde , K. and Wacker , U . 1993 . Comments on the relationship between aerosol spectra, equilibrium drop size spectra, and CCN spectra. Beitr. Phys. Atmosph . 66 , 157 – 162 .  

  36. Wexler , A. S. and Ge , Z . 1998 . Hydrophobic particles can activate at lower relative humidity than slightly hygroscopic ones: a Kohler theory incorporating sur-face fixed charges . J. Geophys. Res. 103 , 6083 - 6088 .  

  37. Young , K. C. and Warren , A. J. 1992 . A reexamination of the derivation of the equilibrium supersaturation curve for soluble particles . J. Atmos. Sci . 49 , 1138 – 1143 .  

  38. Zappoli , S. , Andracchio , A. , Fuzzi , S. , Facchini , M. C. , Gelencser , A. , Kiss , G. , Krivacsy , Z. , Molnar , A. , Mes-zaros , E. , Hansson , H. C. , Rosman , K. and Zebuhr , Y . 1999 . Inorganic, organic and macromolecular com-ponents of fine aerosol in different areas of Europe in relation to their water solubility. Atmos. Environ . 33 , 2733 – 2743 .  

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