Validation of OMI Tropospheric NO2 Observations During INTEX-B and Application to Constrain NOx Emissions Over the Eastern United States and Mexico

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Validation of OMI Tropospheric NO2 Observations During INTEX-B and Application to Constrain NOx Emissions Over the Eastern United States and Mexico

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dc.contributor.author Boersma, K.F.
dc.contributor.author Jacob, Daniel J.
dc.contributor.author Bucsela, E.J.
dc.contributor.author Perring, A.E.
dc.contributor.author Dirksen, R.
dc.contributor.author van der A, R.J.
dc.contributor.author Yantosca, Robert M.
dc.contributor.author Park, R.J.
dc.contributor.author Wenig, M.O.
dc.contributor.author Bertram, T.H.
dc.contributor.author Cohen, R.C.
dc.date.accessioned 2010-01-25T15:01:19Z
dc.date.issued 2008
dc.identifier.citation Boersma, K. F., Daniel J. Jacob, E.J. Bucsela, A. E. Perring, R. Dirksen, R. J. van der A, Robert M. Yantosca, R. J. Park, M. O. Wenig, T. H. Bertram, and R. C. Cohen. 2008. Validation of OMI tropospheric NO2 observations during INTEX-B and application to constrain NOx emissions over the eastern United States and Mexico. Atmospheric Environment 42(19): 4480-4497. en_US
dc.identifier.issn 1352-2310 en_US
dc.identifier.uri http://nrs.harvard.edu/urn-3:HUL.InstRepos:3579187
dc.description.abstract We compare tropospheric NO2 column measurements from the Ozone Monitoring Instrument (OMI) aboard the EOS Aura satellite with coincident in situ aircraft measurements on vertical spirals over the southern United States, Mexico, and the Gulf of Mexico during the INTEX-B campaign in March 2006. Good correlation with no significant bias (r2=0.67, slope=0.99±0.17, n=12) is found for the ensemble of comparisons when the aircraft could spiral sufficiently low to sample most of the NO2 column. Urban spirals where large extrapolations were needed below the aircraft floor (1000 ft) showed poorer agreement. We use the OMI observations together with a global chemical transport model (GEOS-Chem) to estimate emissions of nitrogen oxides over the eastern United States and Mexico in March 2006. Comparison to EPA's National Emissions Inventory 1999 (NEI99) calls for a decrease in power plant emissions and an increase in on-road vehicle emissions relative to that inventory. The rise in vehicular emissions is offsetting the reduction in power plant and industry emissions. These findings are consistent with independent assessments. Our OMI-derived emission estimates for Mexico are higher by a factor of 2.0±0.5 than bottom-up emissions, similar to a comparison between the recently released Mexican NEI99 inventory and the bottom-up showing that the Mexican NEI99 inventory is 1.6–1.8× higher. en_US
dc.description.sponsorship Earth and Planetary Sciences en_US
dc.description.sponsorship Engineering and Applied Sciences en_US
dc.language.iso en_US en_US
dc.publisher Elsevier en_US
dc.relation.isversionof doi:10.1016/j.atmosenv.2008.02.004 en_US
dc.relation.hasversion http://acmg.seas.harvard.edu/recentpapers.html#P2008 en_US
dash.license LAA
dc.subject INTEX-B en_US
dc.subject validation en_US
dc.subject OMI en_US
dc.subject tropospheric NO2 en_US
dc.subject NOx emissions en_US
dc.title Validation of OMI Tropospheric NO2 Observations During INTEX-B and Application to Constrain NOx Emissions Over the Eastern United States and Mexico en_US
dc.type Journal Article en_US
dc.description.version Version of Record en_US
dc.relation.journal Atmospheric Environment en_US
dash.depositing.author Jacob, Daniel J.
dc.date.available 2010-01-25T15:01:19Z

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  • FAS Scholarly Articles [7220]
    Peer reviewed scholarly articles from the Faculty of Arts and Sciences of Harvard University

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