Assessing the distribution and growth rates of NOx emission sources by inverting a 10-year record of NO2 satellite columns

Details Assessing the distribution and growth rates of NOx emission sources by inverting a 10-year record of NO2 satellite columns Assessing the distribution and growth rates of NOx emission sources by inverting a 10-year record of NO2 satellite columns

May 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008georl..3510801s&link_type=abstract

Geophysical Research Letters, Volume 35, Issue 10, CiteID L10801

Physics

21

Atmospheric Composition And Structure: Constituent Sources And Sinks, Atmospheric Composition And Structure: Troposphere: Composition And Chemistry, Atmospheric Composition And Structure: Troposphere: Constituent Transport And Chemistry, Atmospheric Composition And Structure: Pollution: Urban And Regional (0305, 0478, 4251), Atmospheric Composition And Structure: Instruments And Techniques

Scientific paper

Tropospheric NO2 columns retrieved from the GOME and SCIAMACHY satellite instruments between January 1997 and December 2006 are used together with the IMAGES CTM and its adjoint to construct a top-down inventory for NO x emissions, with a focus on anthropogenic sources. The influence of the emission updates on the chemical lifetime of NO x is taken into account, and found to have a significant impact on the results. Anthropogenic emission trends are inferred over industrialized regions of the Northern Hemisphere. The largest emission increases are found over eastern China, and in particular in the Beijing area (growth rate of 9.6%/yr), whereas important emission decreases are calculated over the United States (-4.3%/yr in the Ohio River Valley), and to a lesser extent over Europe (-1.4%/yr in Germany, -1.0%/yr in the Po Basin). The emission changes result in significant trends in surface ozone, amounting to more than 15%/decade over large parts of China in summertime.

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