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| 影响宝天高速公路视程障碍的天气现象分布特征 | |
| 引用本文： | 蒲金涌,蒲禹君,姚小英,郭清厉.影响宝天高速公路视程障碍的天气现象分布特征[J].中国农学通报,2011,27(29):290-295. |
| 作者姓名： | 蒲金涌 蒲禹君 姚小英 郭清厉 |
| 作者单位： | 1. 中国气象局兰州干旱气象研究所/中国气象局干旱气候变化与减灾重点开放实验室/甘肃省干旱气候变化与减灾重点实验室,兰州730020;天水市气象局,甘肃天水741000 2. 中联西北工程设计研究院,西安,710073 3. 天水市气象局,甘肃天水,741000 4. 宝鸡市气象局,陕西宝鸡,721000 |
| 基金项目： | 甘肃省气象局"十人计划"，国家科技部公益行业专项 |
| 摘 要： | 为了做好宝天高速公里的气象保障工作，笔者运用1961-2008年天宝高速公路宝鸡、麦积国家气象站视程障碍天气观测资料，分析视程障碍天气现象对公路正常运行的干扰及天气现象本身的时空分布特征及变化趋势。结果表明，沙尘暴属小概率事件。近年来，沿公路从东向西雾日逐渐减少，浮尘及扬沙日数逐渐增加。10月份，全线路出现雾天的频率较高，为0.56天/年；浮尘及扬沙主要出现在3-5月，全线路出现浮尘频率为1.4天/年，扬沙频率为0.7天/年。雾日宝鸡以0.34天/年线性趋势减少，天水以0.01天/年线性趋势减少；浮尘宝鸡以0.41天/年线性趋势减少，天水以1.37天/年线性趋势减少；宝鸡自2002年以后，已连续7年无扬沙天气出现，天水扬沙线性减少趋势为0.37天/年。应根据视程障碍天气现象变化规律，制定应对措施，做好气象保障服务。 |
| 关 键 词： | 鲜切 鲜切 生菜 伤害信号 |
| 收稿时间： | 2011/4/20 0:00:00 |
| 修稿时间： | 2011/5/19 0:00:00 |
Distribution Characteristics of Weather Phenomena Affected on Vision Obstruction Along the Baoji-Tianshui Highway |
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| Pu Jinyong,Pu Yujun,Yao Xiaoying,Guo Qingli.Distribution Characteristics of Weather Phenomena Affected on Vision Obstruction Along the Baoji-Tianshui Highway[J].Chinese Agricultural Science Bulletin,2011,27(29):290-295. | |
| Authors: | Pu Jinyong Pu Yujun Yao Xiaoying Guo Qingli |
| Institution: | Pu Jinyong 1,2,Pu Yujun 3,Yao Xiaoying 2,Guo Qingli 4 (1 Key Laboratory of Arid Climatic Change and Reducing Disaster of Gansu Province /Key Open Laboratory of Arid Change and Disaster Reduction of CMA Institute of Arid Meteorology /China Meteorological Administration,Lanzhou 730020,2 Tianshui Meteorological Bureau,Tianshui Gansu 741000,3 China United Northwest Institute for Design and Research,Xi ' an 710073,4 Baoji Meteorological Bureau,Baoji Shaanxi 721000) |
| Abstract: | In order to complete the weather service along Baoji-Tianshui highway,based on the data of weather phenomenon which reducing the visibility,in Tianshui and Baoji national meteorological observation stations from 1961 to 2008,the variation and distribution characteristics of vision obstruction weather phenomena along Baoji-Tianshui highway had been analyzed.The results showed that the sand storm was small probability climatic event.The fog days increased and dust and dust blowing days decreased from east to ... |
| Keywords: | influence Baoji-Tianshui highway vision obstruction distribution characteristic |
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