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Ho-Chun Huang, Xin-Zhong Liang, Kenneth E. Kunkel, Michael Caughey, and Allen Williams

. Biases generated in the RCM meteorological conditions and emissions ultimately affect the accuracy of AQM simulations. In this study, LBCs constructed from global reanalysis data actually possess substantial uncertainties, especially over the oceans and the Tropics ( Liang et al. 2001 , 2004 ). These uncertainties may limit the ability of RCMs to reproduce observed regional climate variations. Without independent observational data to validate the EM directly, it was beyond the scope of this study

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George Kallos, Marina Astitha, Petros Katsafados, and Chris Spyrou

; Prospero et al. 2001 ). During such events, dust has been observed in Barbados ( Li et al. 1996 ) and in the eastern and southeastern parts of the United States ( Savoie and Prospero 1977 ). Using trajectory analysis and a conceptual atmospheric circulation model, Perry et al. (1997) postulated that the easterly winds of the summer ITCZ in the Tropics can provide a mechanism for successful long-range transport across the Atlantic Ocean. Once in the vicinity of the American continent, the dust can be

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