Atmospheric Chemistry and Physics Discussions www.atmos-chem-phys-discuss.net 1680-7367 1680-7375 7 6 2007 10.5194/acpd-7-17511-2007 http://www.atmos-chem-phys-discuss.net/7/17511/2007/ http://www.atmos-chem-phys-discuss.net/7/17511/2007/acpd-7-17511-2007.html http://www.atmos-chem-phys-discuss.net/7/17511/2007/acpd-7-17511-2007.pdf 17511 17536 2007-12-03 A data assimilation method of the Ensemble Kalman Filter for use in severe dust storm forecasts over China C. Lin Z. Wang zifawang@mail.iap.ac.cn J. Zhu LAPC/NZC, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China Graduate University of Chinese Academy of Sciences, Beijing, China An Ensemble Kalman Filter (EnKF) data assimilation system was developed for a regional dust transport model. This paper applied the EnKF method to investigate modeling severe dust storm episodes occurred in March 2002 over China based on surface observations of dust concentrations to explore its impacts on forecast improvement. 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