Show simple item record

dc.contributor.authorWang, Yuhang
dc.contributor.authorLogan, Jennifer A.
dc.contributor.authorJacob, Daniel James
dc.date.accessioned2015-03-12T17:43:12Z
dc.date.issued1998
dc.identifier.citationWang, Yuhang, Jennifer A. Logan, and Daniel J. Jacob. 1998. “Global Simulation of Tropospheric O3-NOx-Hydrocarbon Chemistry: 2. Model Evaluation and Global Ozone Budget.” Journal of Geophysical Research 103 (D9): 10727. doi:10.1029/98jd00157.en_US
dc.identifier.issn0148-0227en_US
dc.identifier.urihttp://nrs.harvard.edu/urn-3:HUL.InstRepos:14121844
dc.description.abstractResults from a global three-dimensional model for tropospheric O3-NOx-hydrocarbon chemistry are presented and evaluated with surface, ozonesonde, and aircraft measurements. Seasonal variations and regional distributions of ozone, NO, peroxyacetylnitrate (PAN), CO, ethane, acetone, and H2O2 are examined. The model reproduces observed NO and PAN concentrations to within a factor of 2 for a wide range of tropospheric regions including the upper troposphere but tends to overestimate HNO3 concentrations in the remote troposphere (sometimes several fold). This discrepancy implies a missing sink for HNO3 that does not lead to rapid recycling of NOx; only in the upper troposphere over the tropical South Atlantic would a fast conversion of HNO3 to NOx improve the model simulation for NOx. Observed concentrations of acetone are reproduced in the model by including a large biogenic source (15 Tg C yr−1), which accounts for 40% of the estimated global source of acetone (37 Tg C yr−1). Concentrations of H2O2 in various regions of the troposphere are simulated usually to within a factor of 2, providing a test for HOx chemistry in the model. The model reproduces well the observed concentrations and seasonal variations of ozone in the troposphere, with some exceptions including an underestimate of the vertical gradient across the tropical trade wind inversion. A global budget analysis in the model indicates that the supply and loss of tropospheric ozone are dominated by photochemistry within the troposphere and that NOx. emitted in the southern hemisphere is twice as efficient at producing ozone as NOx emitted in the northern hemisphere.en_US
dc.description.sponsorshipEngineering and Applied Sciencesen_US
dc.language.isoen_USen_US
dc.publisherWiley-Blackwellen_US
dc.relation.isversionofdoi:10.1029/98JD00157en_US
dash.licenseLAA
dc.titleGlobal simulation of tropospheric O3-NOx-hydrocarbon chemistry: 2. Model evaluation and global ozone budgeten_US
dc.typeJournal Articleen_US
dc.description.versionVersion of Recorden_US
dc.relation.journalJ. Geophys. Res.en_US
dash.depositing.authorJacob, Daniel James
dc.date.available2015-03-12T17:43:12Z
dc.identifier.doi10.1029/98JD00157*
workflow.legacycommentsCan post pub per sherpa (Publisher's version/PDF must be used in Institutional Repository 6 months after publication.)en_US
dash.contributor.affiliatedLogan, Jennifer
dash.contributor.affiliatedJacob, Daniel


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record