| 宁夏区域性强沙尘暴短期预报系统 |
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| 引用本文： | 赵光平,王连喜,杨淑萍. 宁夏区域性强沙尘暴短期预报系统[J]. 中国沙漠, 2001, 21(2): 175-181 |
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| 作者姓名： | 赵光平 王连喜 杨淑萍 |
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| 作者单位： | 宁夏气象防灾减灾重点实验室, 宁夏银川 750002 |
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| 基金项目： | 国家科技部及宁夏自治区科技厅项目资助 |
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| 摘 要： | 通过对产生强沙尘暴天气三大因子的实时诊断,从强冷空气、热力不稳定和近地层环境分析入手,依据宁夏强沙尘暴天气预报着眼点,在较全面地对产生强沙尘暴天气的三维空间物理量结构和动力过程所进行的动力过程相似检验前提下,通过渗入有明确天气学意义并对宁夏强沙尘暴有实际预报能力的综合指标和组合模型,在天气系统自动识别技术的支持下,应用螺旋度修正方案确定强沙尘暴落区,建立自动、客观化的宁夏强沙尘暴天气监测和预报系统。
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| 关 键 词： | 动力相似过滤 螺旋度修正 强沙尘暴 预报系统 |
| 文章编号： | 1000-694X(2001)02-0175-07 |
| 收稿时间： | 2000-05-22 |
| 修稿时间： | 2000-05-22 |
Short-range Forecast System for Regional Severe Sandstorm in Ningxia |
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| ZHAO Guang-ping,WANG Lian-xi,YANG Shu-ping. Short-range Forecast System for Regional Severe Sandstorm in Ningxia[J]. ournal of Desert Research, 2001, 21(2): 175-181 |
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| Authors: | ZHAO Guang-ping WANG Lian-xi YANG Shu-ping |
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| Affiliation: | Key Laboratory of Miteorological Disaster Prewnting and Reducing of Ningxia, Yingchuan 750002, China |
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| Abstract: | The paper is based on real-time diagnosis about three major factors producing severe sandstorm, they are strong cold air, thermal instability and ground layer environment. Through analyzing the three factors, and according to the starting point of severe sandstorm forecast of Ningxia, we similarly test the physical structure of three-dimensional space and dynamic process which produce severe sandstorm, then permeate the comprehensive index and grouping model that have the definite sense of synoptic meteorology and have the ability to practically forecast severe sandstorms of Ningxia. In support of the technology of automatic discernment of synoptic system, and applying the amendment scheme of spiral degree we determin the falling area of severe sandstorm, and then create the automatic and objective system that can monitor and forecast severe sandstorm weather of Ningxia. |
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| Keywords: | dynamic similarity filter spiral degree amendment severe sandstorm forecast system |
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