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dc.contributor.authorWang, Yuxuan X.
dc.contributor.authorMcElroy, Michael Brendon
dc.contributor.authorJacob, Daniel James
dc.contributor.authorYantosca, Robert M.
dc.date.accessioned2015-03-12T17:39:17Z
dc.date.issued2004
dc.identifier.citationWang, Yuxuan X. Michael B. McElroy, Daniel J. Jacob, and Robert M. Yantosca. 2004. “A Nested Grid Formulation for Chemical Transport over Asia: Applications to CO.” Journal of Geophysical Research 109 (D22). doi:10.1029/2004jd005237.en_US
dc.identifier.issn0148-0227en_US
dc.identifier.urihttp://nrs.harvard.edu/urn-3:HUL.InstRepos:14121840
dc.description.abstractA global three-dimensional chemical transport model (GEOS-CHEM) was modified to permit treatment of a limited spatial regime with resolution higher than that adopted for the global background. Identified as a one-way nested grid formulation, the model was applied to a simulation of CO over Asia during spring 2001. Differences between results obtained using the nested grid (resolution 1° × 1°), the coarse global model (resolution 4° × 5°), and the intermediate global model (resolution 2° × 2.5°) are discussed. The higher-resolution model allows for more efficient, advection-related, ventilation of the lower atmosphere, reflecting the significance of localized regions of intense upward motion not resolved in a coarser-resolution simulation. Budget analysis suggests that upward transfer to higher altitudes through large-scale advection provides the major sink for CO below 4 km. Horizontal advection, mainly through the north boundary, contributes a net source of CO to the window domain despite the polluted nature of the study region. The nested-grid model is shown to provide good agreement with measurements made during the Transport and Chemical Evolution over the Pacific (TRACE-P) campaign in spring 2001, notably better than the low-resolution model in simulating frontal lifting process and differences across the boundary separating the regions of cyclonic and anticyclonic flow. The high-resolution window approach also allows us to differentiate transport mechanisms for individual subregions of China on a much finer scale than was possible previously. Suggestions are made as to how to allow for subgrid vertical advective motions in the low-resolution model through a carefully designed and broadly tested eddy diffusion treatment.en_US
dc.description.sponsorshipEngineering and Applied Sciencesen_US
dc.language.isoen_USen_US
dc.publisherWiley-Blackwellen_US
dc.relation.isversionofdoi:10.1029/2004JD005237en_US
dash.licenseLAA
dc.subjectCOen_US
dc.subjectmodel resolutionen_US
dc.subjectnested griden_US
dc.titleA nested grid formulation for chemical transport over Asia: Applications to COen_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.available2015-03-12T17:39:17Z
dc.identifier.doi10.1029/2004JD005237*
dash.contributor.affiliatedYantosca, Robert
dash.contributor.affiliatedMcElroy, Michael
dash.contributor.affiliatedJacob, Daniel


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