Journal ArticleDOI
Overview of Arctic Cloud and Radiation Characteristics
TLDR
In this article, the authors describe the Arctic temperature and humidity characteristics, cloud properties and processes, radiative characteristics of the atmosphere and surface, direct and indirect radiative effects of aerosols, and the modeling and satellite remote sensing of cloud and radiative properties.Abstract:
To provide a background for ARM's activities at the North Slope of Alaska/Adjacent Arctic Ocean sites, an overview is given of our current state of knowledge of Arctic cloud and radiation properties and processes. The authors describe the Arctic temperature and humidity characteristics, cloud properties and processes, radiative characteristics of the atmosphere and surface, direct and indirect radiative effects of aerosols, and the modeling and satellite remote sensing of cloud and radiative characteristics. An assessment is given of the current performance of satellite remote sensing and climate modeling in the Arctic as related to cloud and radiation issues. Radiation-climate feedback processes are discussed, and estimates are made of the sign and magnitude of the individual feedback components. Future plans to address these issues are described.read more
Citations
More filters
Journal ArticleDOI
Advances in understanding clouds from ISCCP
TL;DR: The progress report on the International Satellite Cloud Climatology Project (ISCCP) describes changes made to produce new cloud data products (D data), examines the evidence that these changes are improvements over the previous version (C data), summarizes some results, and discusses plans for the ISCCP through 2005.
Journal ArticleDOI
Polar amplification of climate change in coupled models
TL;DR: In this paper, the magnitude, spatial distribution, and seasonality of the surface warming in the Arctic is examined and compared among the models, and it is found that the mean sea-ice state in the control (or present) climate is found to influence both the magnitude and spatial distribution of the high-latitude warming in models.
Journal ArticleDOI
Arctic Environmental Change of the Last Four Centuries
Jonathan T. Overpeck,Konrad A Hughen,D. Hardy,Raymond S. Bradley,R. Case,M. A. Douglas,Bruce P. Finney,K. Gajewski,Gordon C. Jacoby,Anne E. Jennings,Scott F. Lamoureux,A. Lasca,Glen M. MacDonald,J.J. Moore,Michael Retelle,S. Smith,Alexander P. Wolfe,G. Zielinski +17 more
TL;DR: A compilation of paleoclimate records from lake sediments, trees, glaciers, and marine sediments provides a view of circum-Arctic environmental variability over the last 400 years.
Journal ArticleDOI
The Arctic Amplification Debate
TL;DR: In this article, the authors compare observed trajectories to near-future simulations (2010-2029), rather than to the doubled-CO2 or late 21st century conditions that are typically cited.
Journal ArticleDOI
How Well Do We Understand and Evaluate Climate Change Feedback Processes
Sandrine Bony,Robert Colman,Vladimir M. Kattsov,Richard P. Allan,Christopher S. Bretherton,Jean-Louis Dufresne,Alex Hall,Stephane Hallegatte,Marika M. Holland,William Ingram,David A. Randall,Brian J. Soden,George Tselioudis,Mark J. Webb +13 more
TL;DR: In this paper, a review of recent observational, numerical, and theoretical studies of climate feedbacks is presented, showing that there has been progress since the Third Assessment Report of the Intergovernmental Panel on Climate Change in (i) the understanding of the physical mechanisms involved in these feedbacks, (ii) the interpretation of intermodel differences in global estimates of the feedbacks associated with water vapor, lapse rate, clouds, snow, and sea ice, and (iii) the development of methodologies of evaluation of these inputs using observations.
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
Aerosols, cloud microphysics, and fractional cloudiness.
TL;DR: 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.
Journal ArticleDOI
Climate change : the IPCC scientific assessment
TL;DR: A review of the intergovernmental panel on climate change report on global warming and the greenhouse effect can be found in this paper, where the authors present chemistry of greenhouse gases and mathematical modelling of the climate system.
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.
Related Papers (5)
Cloud Radiative Forcing of the Arctic Surface: The Influence of Cloud Properties, Surface Albedo, and Solar Zenith Angle
Surface Heat Budget of the Arctic Ocean
Taneil Uttal,Judith A. Curry,Miles G. McPhee,Donald K. Perovich,Richard E. Moritz,James A. Maslanik,Peter S. Guest,Harry L. Stern,James A. Moore,Rene Turenne,Andreas Heiberg,Mark C. Serreze,Donald P. Wylie,Ola Persson,Clayton A. Paulson,Christopher Halle,James H. Morison,Patricia A. Wheeler,Alexander Makshtas,Harold Welch,Matthew D. Shupe,Janet M. Intrieri,Knut Stamnes,Ronald W. Lindsey,Robert Pinkel,W. Scott Pegau,Timothy P. Stanton,Thomas C. Grenfeld +27 more