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An air quality forecasting system in Beijing-Application to the study of dust storm events in China in May 2008

Journal of Environmental Sciences 2012年第1期24卷 102-111页

作者： Benoit Laurent fanny velay-lasry Richard Ngo Claude Derognat Batrice Marticorena Armand Albergel Laboratoire Inter-universitaire des Systèmes Atmosphriques Laboratorie mixte Paris VII-UPEC-CNRSUMR 7583CrteilFrance ARIA Technologies Boulogne-BillancourtFrance

An air pollution forecast system,ARIA Regional,was implemented in 2007–2008 at the Beijing Municipality Environmental Monitoring Center,providing daily forecast of main pollutant *** chemistry-transport model CHIMERE was coupled with the dust emission model MB95 for restituting dust storm events in springtime so as to improve forecast *** storm events were sporadic but could be extremely intense and then control air quality indexes close to the source areas but also far in the Beijing area.A dust episode having occurred at the end of May 2008 was analyzed in this article,and its impact of particulate matter on the Chinese air pollution index （API） was *** our estimation,about 23 Tg of dust were emitted from source areas in Mongolia and in the Inner Mongolia of China,transporting towards *** episode of dust storm influenced a large part of North China and East China,and also South *** model result was then evaluated using satellite observations and in situ *** simulated daily concentrations of total suspended particulate at 6：00 UTC had a similar spatial pattern with respect to OMI satellite aerosol *** evolution of dust plume was evaluated by comparing dust aerosol optical depth （AOD） calculated from the simulations with AOD derived from MODIS satellite ***,the comparison of reported Chinese API in Beijing with API calculated from the simulation including dust emissions had showed the significant improvement of the model results taking into accountmineral dust correctly.

关键词： dust particulate matter modeling Beijing air quality forecast and analysis system

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