Sand flux estimation during a sand-dust storm at Tazhong area of Taklimakan Desert,China
作者单位：Institute of Desert MeteorologyChina Meteorological Administration Desert Atmosphere and Environment Observation Experiment of Taklimakan Station
会议名称：《第28届中国气象学会年会》
会议日期：2011年
学科分类：07[理学] 070601[理学-气象学] 0706[理学-大气科学]
基 金：funded by the National Key Technology R&D Program (2008BAC40B05-01) the National Department of Public Benefit (Meteorology) Research Foundation (GYHY 201006012) the Research Foundation of China Desert Meteorology (Sqj2010014)
关 键 词：friction velocity sand transport flux Taklimakan Desert
摘 要：In this paper,the sand transport during a sand-dust storm in the Tazhong area of the central Taklimakan Desert from 11:29 to 23:56 on July 19,2008 was observed and measured in real *** sand flux at Tazhong was estimated using sand transport empirical *** critical friction velocity at Tazhong was 0.24 m/s and the functional relation between the wind speed and sediment discharge at the height of 2 m was *** was also found that the calculated values by Lettau’s sediment discharge formula were close to those of the instrument *** horizontal sand flux and the vertical sand flux during this sand-dust storm at Tazhong were respectively 258.67×10-4 kg/（m·s） and 40.07×10-7 kg/（m2·s）.