Interactive comment on “Responses of surface ozone air quality to anthropogenic nitrogen deposition in the Northern Hemisphere” by
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چکیده
In this manuscipt, Zhao et al. present the results of an exploratory modeling study that quantifies the potential impact of anthropogenic nitrogen deposition on ozone air quality. The GEOS-Chem chemical transport model is used to derive nitrogen deposition fields (with and without anthropogenic emissions) that are used in separate Community Land Model simulations in order to derive contrasting global vegetation properties and soil NOx emissions. These are in turn used in GEOS-Chem to simulate impacts on surface ozone concentrations. The authors find that anthropogenic nitrogen deposition can increase surface ozone by enhancing biogenic VOC, but also decrease surface ozone by enhancing dry deposition velocities. Changes in O3 resulting from increased soil NOx emissions are also spatially heterogeneous. The simulated effects on O3 from
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Interactive comment on “Responses of surface ozone air quality to anthropogenic nitrogen deposition in the Northern Hemisphere” by Yuanhong Zhao et al
Comment: This manuscript presents a modeling study on the effects of anthropogenic nitrogen deposition on ozone pollution through surface-atmosphere exchanges. The Authors combine GEOS-Chem with CLM to produce an interesting, smart modeling experiment to study several processes (e.g. soil NOx, biogenic VOC, LAI, dry deposition velocity, etc) that affect surface ozone. They find that enhance atm...
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