| 敦煌地区沙尘天气特征分析 |
| |
| 引用本文： | 高振荣,邵亮,李光林.敦煌地区沙尘天气特征分析[J].甘肃气象,2010,28(1):59-64. |
| |
| 作者姓名： | 高振荣 邵亮 李光林 |
| |
| 作者单位： | 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;甘肃省酒泉市气象局;甘肃省兰州市气象局;甘肃省敦煌市气象局; |
| |
| 基金项目： | 中国气象局兰州干旱气象科学研究基金项目(IMA2008-02)资助 |
| |
| 摘 要： | 根据敦煌国家基准气候站1951年1月至2009年2月地面观测资料,利用要素时间演变序列分析了近60 a来敦煌沙尘天气的时间演变特征。分析表明,敦煌地区沙尘天气呈明显的递减趋势,20世纪50年代呈高发期,季、月差异显著,呈"单峰型"分布,春季最多,秋季最少。年大风日数减少,平均风速减小是敦煌沙尘天气减少的主要气象原因。并对形成敦煌沙尘天气的天气系统进行了环流分型。丰富的沙尘源和地域效应为敦煌沙尘天气的形成提供了必要的物质条件。
|
| 关 键 词： | 沙尘天气 特征 天气系统 预报 |
Characteristics Analysis of the Sand-dust Weather in Dunhuang Area |
| |
| GAO Zhenrong,SHAO Liang,LI Guanglin.Characteristics Analysis of the Sand-dust Weather in Dunhuang Area[J].Gansu Meteorology,2010,28(1):59-64. |
| |
| Authors: | GAO Zhenrong SHAO Liang LI Guanglin |
| |
| Institution: | 1.Institute of Arid Meteorology;CMA;Key Laboratory of Arid Climate Change and Reducing Disaster of Gansu Province;Key Open Laboratory of Arid Climate Change and Disaster Reduction of CMA;Lanzhou 730020;China;2.Jiuquan Meteorological Bureau of Gansu Province;Jiuquan 735000;3.Lanzhou Meteorological Bureau of Gansu Province;4.Dunhuang Meteorological Bureau of Gansu Province;Dunhuang 736200;China |
| |
| Abstract: | According to the data of ground-based observation from 1951 to 2008 at Dunhuang national standard climate station,the spatio-temporal change of sand-dust weather in Dunhuang area was analyzed.The result reveals that the sand-dust weather obviously decreased.It occurred most frequently in the 1950s,and in a year,it occurred most in spring and least in autumn.The annual wind days decrease and wind speed becoming small were the main reasons for sand-dust weather reduction in Dunhuang area.Meanwhile,the circula... |
| |
| Keywords: | sand-dust weather characteristic weather system sand-dust weather forecast |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
