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Provedor de dados:  OMA
País:  Belgium
Título:  A case study of ships forming and not forming tracks in moderately polluted clouds
Autores:  Noone, K.J.
Öström, E.
Ferek, R.J.
Garrett, T.
Hobbs, P.V.
Johnson, D.W.
Taylor, J.P.
Russell, L.M.
Flagan, R.C.
Seinfeld, J.H.
O'Dowd, C.D.
Smith, M.H.
Durkee, P.A.
Nielsen, K.
Hudson, J.G.
Pockalny, R.A.
De Bock, L.
Van Grieken, R.E.
Gasparovic, R.F.
Brooks, I.
Data:  2000
Ano:  2000
Palavras-chave:  Aerosols
Air pollution
Anthropogenic factors
Atmospheric boundary layer
Atmospheric particulates
Chemical plumes
Cloud physics
Ocean-atmosphere system
Pollution effects
Radiative transfer
Size distribution
Resumo:  The effects of anthropogenic particulate emissions from ships on the radiative, microphysical, and chemical properties of m(oderately polluted marine stratiform clouds are examined. A case study of two ships in the same air mass is presented where one of the vessels caused a discernible ship track while the other did not. <i>In situ</i> measurements of cloud droplet size distributions, liquid water content, and cloud radiative properties, as well as aerosol size distributions (outside cloud, interstitial, and cloud droplet residual particles) and aerosol chemistry, are presented. These are related to measurements of cloud radiative properties. The differences between the aerosol in the two ship plumes are discussed; these indicate that combustion-derived particles in the size range of about 0,03-0,3 µm radius were those that caused the microphysical changes in the clouds that were responsible for the ship track. The authors examine the processes behind ship track formation in a moderately polluted marine boundary layer as an example of the effects that anthropogenic particulate pollution can have in the albedo of marine stratiform clouds.
Tipo:  Info:eu-repo/semantics/article
Idioma:  Inglês
Fonte:  %3Ci%3EJ.+Atmos.+Sci.+57%3C%2Fi%3E%3A+2729-2747
Direitos:  info:eu-repo/semantics/restrictedAccess

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