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Impact of present aircraft emissions of nitrogen oxides on tropospheric ozone and climate forcing
Author(s) -
Hauglustaine D. A.,
Granier C.,
Brasseur G. P.,
Mégie G.
Publication year - 1994
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/94gl01729
Subject(s) - radiative forcing , environmental science , tropospheric ozone , atmospheric sciences , ozone , nitrogen oxide , forcing (mathematics) , greenhouse gas , troposphere , climatology , northern hemisphere , reactive nitrogen , climate model , latitude , climate change , nitrogen , nox , meteorology , chemistry , combustion , geography , geology , oceanography , organic chemistry , geodesy
A two‐dimensional (2‐D) model in which dynamics, radiation and chemistry are treated interactively is used to investigate the seasonal changes in tropospheric ozone due to current nitrogen oxide emissions from aircraft and to assess the associated radiative forcing on the climate system. Our results confirm the high efficiency of nitrogen oxide in‐situ emissions in producing ozone in comparison to surface emissions. The ozone increase is characterized by a strong seasonal variation; it reaches more than 7% during summer in the upper troposphere at northen mid‐latitudes. On a global average basis, the radiative forcing associated with this ozone increase appears to be small in comparison to that of other greenhouse gases. However, it may play a significant role in the anthropogenic forcing on northern hemisphere climate.