High spatial resolution top-down SO2 and NOx emissions over China

Zhen Qu, Yi Wang, Jun Wang & Daven K Henze
Accurate air quality simulation and forecast require timely-updated emission inventory. Compared with the bottom-up approach that has at least one-year time lag, the top-down approach that uses satellite observations of atmospheric composition to estimate emissions can provide timely emission inventory. We integrate SO2 and NO2 observations from the Ozone Monitoring Instrument (OMI) Ozone Mapping and Profiler Suite (OMPS) satellite sensors with the GEOS-Chem adjoin model to estimate SO2 and NOx emissions over China (2005-12-01 to...
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