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| 高空基本天气系统类别自动识别与沙尘暴系统识别试验 | |
| 引用本文： | 胡文东,赵光平,陈晓光,李艳春,王承伟,邵建.高空基本天气系统类别自动识别与沙尘暴系统识别试验[J].中国沙漠,2007,27(4):633-638. |
| 作者姓名： | 胡文东 赵光平 陈晓光 李艳春 王承伟 邵建 |
| 作者单位： | 1. 宁夏气象防灾减灾重点实验室,宁夏,银川,750002 2. 宁夏气象防灾减灾重点实验室,宁夏,银川,750002;中国气象局兰州干旱气象研究所,甘肃,兰州,730020 3. 黑龙江省气象中心,黑龙江,哈尔滨,150030 4. 宁夏气象台,宁夏,银川,750002 |
| 基金项目： | 国家自然科学基金;宁夏自然科学基金 |
| 摘 要： | 针对大气环流形势,从天气系统的定义出发,面向气象业务MICAPS格点文件数据格式,在矢量旋转追踪法等值线分析的基础上,有序提取等值线的控制点。经过滤波、查找各等值线特性点、剔除异常点等处理,获取沙尘暴高空影响天气系统的基本节点。利用多种特征参量设计了方便可行的算法,完成了槽脊系统的数据构建、分析并确定其地理位置。通过对数据场数值结构分析,建立了确定闭合天气系统位置及其高、低性质的算法。使用Visual Basic语言,开发了相应的沙尘暴高空基本影响天气系统类别自动分析软件,为实现概念模型自动预报系统、提高沙尘暴业务预报现代化水平打下了基础。 |
| 关 键 词： | 高空天气系统 自动分析 沙尘暴 |
| 文章编号： | 1000-694X（2007）04-0633-06 |
| 收稿时间： | 2006-02-10 |
| 修稿时间： | 2006-02-102006-04-04 |
Auto-diagnosis on Primary Weather Systems Aloft and Test on Sandstorm |
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| HU Wen-dong,ZHAO Guang-ping,CHEN Xiao-guang,LI Yan-chun,WANG Cheng-wei,SHAO Jian.Auto-diagnosis on Primary Weather Systems Aloft and Test on Sandstorm[J].Journal of Desert Research,2007,27(4):633-638. | |
| Authors: | HU Wen-dong ZHAO Guang-ping CHEN Xiao-guang LI Yan-chun WANG Cheng-wei SHAO Jian |
| Institution: | 1. Key Laboratory of Meteorological Disaster Preventing and Reducing in Ningxia, Yinchuan 750002, China; 2 .Lanzhou Arid Meteorology Research Institute, Lanzhou 730020, China; 3.Heilongjiang Meteorological Center, Harbin 1500304, China; 4.Ningxia Meteorological Observatory, Yinchuan 750002, China |
| Abstract: | Against the air circumstance status and based on the conception of weather system, this paper aimed to obtain the control point of contour with MICAPS grid format data and using contour pursuing method. A test was conducted on sandstorm weather system with curve filtering, checking singular points, eliminating abnormal points, etc. The trough and ridge system was developed by using a convenient and feasible algorithm with multi parameters. The location of closed system center was found by data structure analysis, and the high or low features of the system can be distinguished. An auto-analyzing software was setup in Visual Basic language to analysis the up air basic weather system for sandstorm. These should provide a basis for developing automatic forecast system of conceptual model, and consequently to improve the forecasting service for sandstorm. |
| Keywords: | weather system aloft automatic analysis sandstorm |
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