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Estimation of the Threshold Friction Velocities over Various Dust Storm Source Areas in Northwest China |
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| Authors: | ZHU Hao ZHANG Hongsheng |
| Institution: | ZHU Hao and ZHANG Hongsheng Department of Atmospheric and Oceanic Sciences,School of Physics,Peking University,Beijing 100871 |
| Abstract: | The emission of dust particles into the atmosphere is governed by the aerodynamic and resistant factors,which are quantified by the friction velocity u ? and the threshold friction velocity u ?t ,respectively.The threshold friction velocity u ?t influences the vertical dust flux and dust transport.Based on the micrometeorological data obtained in the springs of 2004 and 2006 over Hunshandake desert area,Loess Plateau,and Gobi desert area,the relationship between dust concentration and friction velocity for ... |
| Keywords: | dust storm dust rising threshold friction velocity Hunshandake desert area Loess Plateau Gobi desert area |
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