Interactive comment on “The role of sea-salt emissions and heterogeneous chemistry in theair
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(1) Page 3812: line 18:"The threshold diameter in the hybrid model of 2.5 um seems too high, which could introduce appreciable errors in the predicted distribution of nitrate. This diameter was typically set at 1 um in some of the previous studies. A discussion on the sensitivity of the results to the threshold diameter is warranted to ensure that the errors due to this assumption are acceptable."
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Interactive comment on “The role of sea-salt emissions and heterogeneous chemistry in theair
(1) "The main flaw of the paper is the comparison with measurements: for the period that was selected to be simulated no measurements are available, which led the authors to compare their results with measurements with other time periods. Although this can be acceptable, no arguments exist on why that period was selected for modelling, since the selection of another year and/or season could coi...
متن کاملSensitivity of modeled atmospheric nitrogen species and nitrogen deposition to variations in sea salt emissions in the North Sea and Baltic Sea regions
Coarse sea salt particles are emitted ubiquitously from the ocean surface by wave-breaking and bubblebursting processes. These particles impact the atmospheric chemistry by affecting the condensation of gas-phase species and, thus, indirectly the nucleation of new fine particles, particularly in regions with significant air pollution. In this study, atmospheric particle concentrations are model...
متن کاملSSA and heterogeneous chemistry in polluted coastal areas
The role of sea-salt emissions and heterogeneous chemistry in the air quality of polluted coastal areas E. Athanasopoulou, M. Tombrou, S. N. Pandis, and A. G. Russell National and Kapodistrian University of Athens, Faculty of Physics, Dep. of Environmental Physics and Meteorology, Athens, Greece Department of Chemical Engineering, University of Patras, 26500 Patra, Greece School of Civil and En...
متن کاملImpact of chlorine emissions from sea-salt aerosol on coastal urban ozone.
The ability of photochemical models to predict observed coastal chlorine levels and their corresponding effect on ozone formation is explored. Current sea-spray generation functions, a comprehensive gas-phase chlorine chemistry mechanism, and several heterogeneous/multiphase chemical reactions considered key processes leading to reactive chlorine formation are added to an airshed model of the S...
متن کاملThe role of sea-salt emissions and heterogeneous chemistry in the air quality of polluted coastal areas
Open-ocean and surf-zone sea-salt aerosol (SSA) emission parameterizations are incorporated in the CAMx aerosol model and applied over an area with an extended Archipelago (Greece), with a fine grid nested over the highly populated Attica peninsula. The maximum indirect impact of SSA on PM10 mass (35%) is located over a marine area with moderate SSA production and elevated shipping emissions (c...
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تاریخ انتشار 2008