| 2010年烟台沙漠学术研讨会论文选 |
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| Preliminary Study on Sand-dust Weather Process Detection Using Boundary Wind Profile Radar |
| WANG Min-zhong1,2, WEI Wen-shou1, HE Qing1,2, WANG Ke1,2, WANG Juan1,2 |
| 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 study sand-dust weather process using wind profiler radar(WPR), a case analysis of WPR detecting sand-dust weather which happened in Taklimakan Desert on April 19—20, 2010 was conducted. The results show that WPR may be used to detect sand-dust weather and its data can reflect the character of large gale flow field. It provides many kinds of data such as horizontal wind, vertical wind, signal to noise ratio, C2n and air temperature etc, and the sand-dust weather process can be analyzed from many angles. In this sand-dust process, the signal to noise ratio data clearly present a large value layer, and preliminary analysis shows that the large value layer is the height where sand-dust is transported. The starting and ending time of large value layer of the signal to noise ratio is corresponding with the starting and ending time of sand-dust weather process. The time of low altitude wind shear is corresponding with the starting time of sand-dust weather process. The maintaining of low altitude east wind is the dynamic condition of sand-dust weather. Moreover, RASS can monitor the air temperature variety during sand-dust weather process.
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Received: 30 June 2010
Published: 20 March 2011
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2011, Vol. 31 
