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| 浑善达克沙地春季沙尘暴期间沙尘启动及传输特性研究 | |
| 引用本文： | 岳平,牛生杰,刘晓云.浑善达克沙地春季沙尘暴期间沙尘启动及传输特性研究[J].中国沙漠,2008,28(2):227-230. |
| 作者姓名： | 岳平 牛生杰 刘晓云 |
| 作者单位： | 1. 中国气象局兰州干旱气象研究所/甘肃省干旱气候变化与减灾重点实验室/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;张掖国家气候观象台,甘肃,张掖,734000 2. 南京信息工程大学,江苏,南京,210044 3. 酒泉市气象局,甘肃,酒泉,735000 |
| 基金项目： | 科技部公益专项资助项目 , 国家自然科学基金 |
| 摘 要： | 沙尘暴是一种强烈的风蚀过程，同时又加剧了荒漠化进程。沙尘气溶胶的生态环境及气候效应已成为国际社会关注的焦点问题。采用“IMGRASS”春季野外实验期间在内蒙古浑善达克沙地东南部的桑根达来观测点得到的沙尘气溶胶的粒谱，计算了该沙地10 m高度的沙粒启动速度，并估算了该沙地沙尘气溶胶的传输距离。 |
| 关 键 词： | 浑善达克沙地 沙尘暴 沙粒浓度 起沙速度 |
| 文章编号： | 1000-694X(2008)02-0227-04 |
| 收稿时间： | 1900-01-01; |
| 修稿时间： | 2007年2月1日 |
Dust Emission and Transmission during Spring Sand-dust Storm in Hunshandake Sand-land |
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| YUE Ping,NIU Sheng-jie,LIU Xiao-yun.Dust Emission and Transmission during Spring Sand-dust Storm in Hunshandake Sand-land[J].Journal of Desert Research,2008,28(2):227-230. | |
| Authors: | YUE Ping NIU Sheng-jie LIU Xiao-yun |
| Institution: | 1.Key Laboratory of Arid Climatic Changing and Reducing Disaster of Gansu Province, Key Laboratory of Arid Climatic Changing and Reducing Disaster of CMA, Institute of Arid Meteorology, China Meteorology Administration, Lanzhou 730020, China; 2.Nanjing University of Information Science and Technology, Nanjing 210044, China; 3.Natioanl Meteorological Observatory of Zhangye, Zhangye 734000, Gansu, China; 4.Jiuquan Meteorological Bureau of Gansu Province, Jiuquan 735000, Gansu, China |
| Abstract: | Sand-dust storm is an intense wind erosion process and it simultaneously exacerbates the land desertification process. The ecological environmental effect and climatic effect of dust aerosol in sand-dust storm have become the focus of attention of the international community of science. In this paper, the dust aerosol number concentration and its transmission characters during spring sand-dust storms were analyzed based on the observation data in Hunshandake sand-land. It was calculated that the dust-emitting wind speed on the sand-land is 5.9 m·s-1 at 10 m high, and the transmission distance of dust particles in sand-dust storm weather condition is about 7.6 104~7.6×105 km. |
| Keywords: | Hunshandake sand-land sand-dust storm dust aerosol concentration dust-emitting wind speed |
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