Journal ArticleDOI
Aerosols, cloud microphysics, and fractional cloudiness.
Reads0
Chats0
TLDR
Increases in aerosol concentrations over the oceans may increase the amount of low-level cloudiness through a reduction in drizzle—a process that regulates the liquid-water content and the energetics of shallow marine clouds—to contribute to a cooling of the earth's surface.Abstract:
Increases in aerosol concentrations over the oceans may increase the amount of low-level cloudiness through a reduction in drizzle—a process that regulates the liquid-water content and the energetics of shallow marine clouds. The resulting increase in the global albedo would be in addition to the increase due to enhancement in reflectivity associated with a decrease in droplet size and would contribute to a cooling of the earth9s surface.read more
Citations
More filters
Journal ArticleDOI
Climate change 2001: the scientific basis
John Theodore Houghton,Y. Ding,David John Griggs,M. Noguer,P. J. van der Linden,X. Dai,K. Maskell,C. A. Johnson +7 more
TL;DR: In this article, the authors present an overview of the climate system and its dynamics, including observed climate variability and change, the carbon cycle, atmospheric chemistry and greenhouse gases, and their direct and indirect effects.
Book Chapter
Changes in Atmospheric Constituents and in Radiative Forcing
Piers M. Forster,Venkatachalam Ramaswamy,Paulo Artaxo,Terje Koren Berntsen,Richard Betts,David W. Fahey,Jim Haywood,Judith Lean,David C. Lowe,Gunnar Myhre,John Nganga,Ronald G. Prinn,Graciela B. Raga,Michael Schulz,Rob van Dorland,Greg Bodeker,Oliver Boucher,William D. Collins,T.J. Conway,Edward J. Dlugokencky,James W. Elkins,David Etheridge,P. Foukal,Paul J. Fraser,Marvyn Geller,Fortunat Joos,Charles D. Keeling,Stefan Kinne,K. Lassey,Ulrike Lohmann,Andrew C. Manning,S. A. Montzka,David E. Oram,K. O'Shaughnessy,S. Piper,Gian-Kasper Plattner,Michael Ponater,Navin Ramankutty,G. Reid,David Rind,Karen H. Rosenlof,Robert Sausen,D. Schwarzkopf,S.K. Solanki,Garry Stenchikov,N. Stuber,Toshihiko Takemura,Christiane Textor,R. Wang,Ray F. Weiss,T. Whorf +50 more
Journal ArticleDOI
Planetary boundaries: Exploring the safe operating space for humanity
Johan Rockström,Johan Rockström,Will Steffen,Will Steffen,Kevin J. Noone,Åsa Persson,Åsa Persson,F. Stuart Chapin,Eric F. Lambin,Timothy M. Lenton,Marten Scheffer,Carl Folke,Carl Folke,Hans Joachim Schellnhuber,Hans Joachim Schellnhuber,Björn Nykvist,Björn Nykvist,Cynthia A. de Wit,Terry P. Hughes,Sander van der Leeuw,Henning Rodhe,Sverker Sörlin,Sverker Sörlin,Peter K. Snyder,Robert Costanza,Robert Costanza,Uno Svedin,Malin Falkenmark,Malin Falkenmark,Louise Karlberg,Louise Karlberg,Robert W. Corell,Victoria J. Fabry,James Hansen,Brian Walker,Brian Walker,Diana Liverman,Katherine Richardson,Paul J. Crutzen,Jonathan A. Foley +39 more
TL;DR: In this article, the authors proposed a new approach to global sustainability in which they define planetary boundaries within which they expect that humanity can operate safely. But the proposed concept of "planetary boundaries" lays the groundwork for shifting our approach to governance and management, away from the essentially sectoral analyses of limits to growth aimed at minimizing negative externalities, toward the estimation of the safe space for human development.
Journal ArticleDOI
Climate Forcing by Anthropogenic Aerosols
Robert J. Charlson,Stephen E. Schwartz,J. M. Hales,Robert D. Cess,James A. Coakley,James Hansen,D. J. Hofmann +6 more
TL;DR: The aerosol forcing has likely offset global greenhouse warming to a substantial degree, however, differences in geographical and seasonal distributions of these forcings preclude any simple compensation.
Journal ArticleDOI
Organic aerosol and global climate modelling: a review
Maria Kanakidou,John H. Seinfeld,Spyros N. Pandis,Ian Barnes,Frank Dentener,Maria Cristina Facchini,R. Van Dingenen,Barbara Ervens,Athanasios Nenes,Claus J. Nielsen,Erik Swietlicki,J. P. Putaud,Yves Balkanski,Sandro Fuzzi,J. Horth,Geert K. Moortgat,R. Winterhalter,Cathrine Lund Myhre,Kostas Tsigaridis,Elisabetta Vignati,Euripides G. Stephanou,J. Wilson +21 more
TL;DR: In this article, the authors reviewed existing knowledge with regard to organic aerosol (OA) of importance for global climate modelling and defined critical gaps needed to reduce the involved uncertainties, and synthesized the information to provide a continuous analysis of the flow from the emitted material to the atmosphere up to the point of the climate impact of the produced organic aerosols.
References
More filters
Journal ArticleDOI
Oceanic phytoplankton, atmospheric sulphur, cloud albedo and climate
TL;DR: The major source of cloud-condensation nuclei (CCN) over the oceans appears to be dimethylsulphide, which is produced by planktonic algae in sea water and oxidizes in the atmosphere to form a sulphate aerosol as mentioned in this paper.
Journal ArticleDOI
Models of cloud-topped mixed layers under a strong inversion
TL;DR: In this paper, the authors constructed a model to relate, explain and predict features of a radiatively active turbulent cloud layer over the sea and under a strong subsidence inversion.
Journal ArticleDOI
An assessment of the impact of pollution on global cloud albedo
TL;DR: In this paper, the authors studied the effect of pollution on global climate and found that the climate effect is comparable to that of increased carbon dioxide, and acts in the opposite direction, in that increasing absorption also attends increasing pollution.
Journal ArticleDOI
The dynamics of stratocumulus: Aircraft observations and comparisons with a mixed layer model
TL;DR: In this article, a detailed case study of day-time stratocumulus over the North Sea using an instrumented aircraft is presented, where measurements include turbulence fluctuation data, radiation fluxes and droplet spectra and were made both in and out of cloud.
Journal ArticleDOI
Effect of ship-stack effluents on cloud reflectivity.
TL;DR: The effect of aerosols on cloud reflectivity is expected to have a larger influence on the earth's albedo than that due to the direct scattering and absorption of sunlight by the aerosols alone.