Impact of Sulfur and Carbonaceous Emissions from International Shipping on Aerosol Distributions and Direct Radiative Forcing

Title:	Impact of Sulfur and Carbonaceous Emissions from International Shipping on Aerosol Distributions and Direct Radiative Forcing
Author:	Wang, Chien.; Kim, Dongchul.
Abstract:	We describe in this report an effort using the MIT/NCAR three-dimensional aerosol-climate model to study the impact of ship emissions on chemical composition and radiative forcing of aerosols. Our results indicate that international shipping can be a non-negligible factor in determining the radiative forcing of aerosols over specific regions with intensive ship activities. These places include the European, eastern Asian, and American coastal regions. The global mean aerosol radiative forcing caused by the ship emissions ranges from -12.5 to -23 mW/m^2, depending on whether the mixing between black carbon and sulfate is included in the model. However, over the aforementioned places, the radiative forcing resulting from ship emissions can be much more important in the total regional aerosol forcing.
Description:	Abstract in HTML and technical report in PDF available on the MIT Joint Program on the Science and Policy of Global Change website (http://mit.edu/globalchange/www/).
URI:	http://mit.edu/globalchange/www/abstracts.html#a159 http://hdl.handle.net/1721.1/41524
Issue Date:	2008-04
Publisher:	MIT Joint Program on the Science and Policy of Global Change

Files in this item

Files	Size	Format
MITJPSPGC_Rpt159.pdf	1.497Mb	application/pdf

Joint Program on the Science and Policy of Global Change Reports
Report Series intended to communicate research results, and provide useful reviews and commentaries on various aspects of the global climate change issue.