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| 盐池地区沙尘暴期间风沙运动若干特征研究 | |
| 引用本文： | 王鹏祥,孙兰东,岳平,牛生杰.盐池地区沙尘暴期间风沙运动若干特征研究[J].中国沙漠,2007,27(6):1077-1079. |
| 作者姓名： | 王鹏祥 孙兰东 岳平 牛生杰 |
| 作者单位： | 1. 中国气象局兰州干旱气象研究所/甘肃省(中国气象局)干旱气候变化与减灾重点(开放)实验室,甘肃,兰州,730020;南京信息工程大学,江苏,南京,210044 2. 中国气象局兰州干旱气象研究所/甘肃省(中国气象局)干旱气候变化与减灾重点(开放)实验室,甘肃,兰州,730020;南京信息工程大学,江苏,南京,210044;南京信息工程大学,江苏,南京,210044 3. 南京信息工程大学,江苏,南京,210044 |
| 基金项目： | 中国科学院知识创新工程项目;中国气象局多轨道业务项目;西部开发科技行动项目 |
| 摘 要： | 通过沙尘暴期间的实际观测资料，对宁夏盐池地区沙尘暴期间风蚀起沙的几个相关特性进行了研究。结果表明：当地10 m高度的临界起沙速度为5.0 m·s-1，临界摩擦速度为0.32 m·s-1；采用凌裕泉提出的“最大可能输沙量”计算方法，得出盐池地区沙尘暴期间的输沙量为12.42 kg·m-1；当地沙尘气溶胶粒子传输距离为1.4×105~1.4×106 km。 |
| 关 键 词： | 沙尘暴 风蚀 临界起沙速度 临界摩擦速度 |
| 文章编号： | 1000-694X（2007）06-1077-03 |
| 收稿时间： | 2007-03-12 |
| 修稿时间： | 2007-05-16 |
Features of Dust Aerosol Transportation during Sandstorms over Yanchi Area of Ninxia Autonomous Region |
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| WANG Peng-xiang,SUN Lan-dong,YUE Ping,NIU Sheng-jie.Features of Dust Aerosol Transportation during Sandstorms over Yanchi Area of Ninxia Autonomous Region[J].Journal of Desert Research,2007,27(6):1077-1079. | |
| Authors: | WANG Peng-xiang SUN Lan-dong YUE Ping NIU Sheng-jie |
| Institution: | 1.Gansu Province &; China Meteorological Administration Key Laboratory of Arid Climatic Changes and Reducing Disaster; Lanzhou Institute of Arid Meteorology, China Meteorological Administration, Lanzhou 730020, China; 2.Nanjing University of Information Science and Technology, Nanjing 210044, China |
| Abstract: | This paper studied the dust aerosol transporting distance and the relation between wind speed and dust erosion based on the in situ measurement measured by APS-3310A(U.S.A.made) in Yanchi area of Ningxia Autonomous Region during April to May of from 1966 to 1999. Dust transporting distance was calculated according to Kaman empirical formula, and the relation between wind speed and dust erosion were calculated following Bagnold calculation. The results show that the aerosol particle transportation distance is about 1.4×105~1.4×106 km, and the threshold sand-moving wind speed is 5.0 m.s-1 in the study area. |
| Keywords: | sandstorm threshold sand-moving wind speed threshold friction wind speed |
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