Atmospheric Chemistry and Physics Discussions www.atmos-chem-phys-discuss.net 1680-7367 1680-7375 7 3 2007 10.5194/acpd-7-7987-2007 http://www.atmos-chem-phys-discuss.net/7/7987/2007/ http://www.atmos-chem-phys-discuss.net/7/7987/2007/acpd-7-7987-2007.html http://www.atmos-chem-phys-discuss.net/7/7987/2007/acpd-7-7987-2007.pdf 7987 8015 2007-06-08 Development and evaluation of an operational SDS forecasting system for East Asia: CUACE/DUST C. H. Zhou zhouch@cma.gov.cn S. L. Gong X. Y. Zhang Y. Q. Wang T. Niu H. L. Liu T. L. Zhao Y. Q. Yang Q. Hou Centre for Atmosphere Watch & Services (CAWAS), Chinese Academy of Meteorological Sciences, China Meteorological Administration (CMA), Beijing 100081, China Air Quality Research Division, Science & Technology Branch, Environment Canada, 4905 Dufferin Street, Toronto, Ontario M3H 5T4, Canada CUACE/Dust, an operational sand and dust storm (SDS) forecasting system for East Asia, was developed at CMA (China Meteorological Administration) by integrating a meso-scale dust aerosol model with a 3DVar data assimilation system that uses both surface network observation data and dust intensity data retrieved from the Chinese Geostationary Satellite FY-2C. For spring 2006, CUACE/Dust successfully forecasted most of the 31 SDS episodes in East Asia. A detailed comparison of the modeling predictions for the 8–12 March episode with surface network observations and lidar measurements revealed a robust forecasting ability of the system. 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