Dynamical mechanisms controlling the vertical redistribution of dust and the thermodynamic structure of the West Saharan atmospheric boundary layer during summer

作者: Juan Cuesta , John H. Marsham , Douglas J. Parker , Cyrille Flamant

DOI: 10.1002/ASL.207

关键词:

摘要: The Saharan atmospheric boundary layer (SABL) plays a significant role in the global circulation and directly affects vertical redistribution of dust originated Sahara, world's largest source. Recent measurements have revealed variety new dynamical mechanisms that control structure SABL, which are responsible for exchange between convective residual layers. Using spaceborne laser remote sensing data (CALIPSO) recently published results, we provide an overview following known mechanisms: diurnal mixing, lifting (density currents cold air outbreaks) topographic effects (mountains albedo anomalies).

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