Comparison of model estimates of the effects of aviation emissions on atmospheric ozone and methane

Autor:	Andrei P. Sokolov, Mark Z. Jacobson, Donald J. Wuebbles, Sebastian D. Eastham, Henry B. Selkirk, Arezoo Khodayari, Steven R. H. Barrett, Guy Brasseur, Hongyan Dang, Nadine Unger, Seth Olsen
Rok vydání:	2013
Předmět:	Ozone Meteorology Aviation business.industry Radiative forcing Atmospheric sciences Methane Troposphere chemistry.chemical_compound Geophysics chemistry Atmospheric chemistry Radiative transfer Environmental impact of aviation General Earth and Planetary Sciences business
Zdroj:	Geophysical Research Letters. 40:6004-6009
ISSN:	0094-8276
DOI:	10.1002/2013gl057660
Popis:	[1] One of the significant uncertainties in understanding the effects of aviation on climate is the effects of aviation emissions on ozone and atmospheric chemistry. In this study the effects of aviation emissions on atmospheric ozone for 2006 and two projections for 2050 are compared among seven models. The models range in complexity from a two-dimensional coupled model to three-dimensional offline and fully coupled three-dimensional chemistry-climate models. This study is the first step in a critical assessment and comparison among these model results. Changes in tropospheric O3 burdens range from 2.3 Tg-O3/Tg-N to 3.0 Tg-O3/Tg-N, ozone radiative forcings range from 6 to 37 mW/m2, and methane radiative forcings range from −8.3 to −12.5 mW/m2 for the 2006 aviation emissions. As a group, the chemistry transport models tend to have similar responses while the fully coupled models tend to separate from this group and do not show similar responses to each other.
Databáze:	OpenAIRE
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