| Desert and Desertification |
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| Sand Saltation in the South Margin of the Taklimakan Desert—A Case Study in Cele County |
| YANG Xing-hua1,2, HE Qing1,2, HUO Wen1,2, Ali Mamtimin1,2,LIU Xin-chun1,2 |
1.Institute of Desert Meteorology, China Meteorological Administration, Urumqi 830002, China;
2.Taklimakan Desert Atmosphere and Environment Observation Experiment Station, Tazhong 841000, Xinjiang, China |
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Abstract In order to investigate the characteristics of sand saltation movement in the south margin of the Taklimakan Desert, we select Cele County as an experimental point and develop a extensive sand saltation movement observation experiment from July 5, 2010 to August 24, 2010 by making use of Sensit sensor, BSNE sand sampler, omni-directional sand saltation sampler and 2-m height meteorological tower. Some results are obtained as fol1ows: (1) During the observation period, the threshold hourly mean wind velocity at 2 m height is about 5.0 m·s-1, and there is a significant power function relationship between saltation particles number and wind velocity. (2) The distribution of saltation sand flux is around west direction, concentrating on SW, WSW, W, WNW, and NW directions accounted for 80.9%. (3) Sand saltation movement can occur at any time of a day, with more frequency in the day time between 11:00 and 19:00. (4) The saltation sand flux within 0~40 cm height is 199.4 kg·m-1 during the observation period.
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Received: 24 October 2011
Published: 04 January 2012
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2012, Vol. 32 
