| 鄂西北夏季对流降水回波特征的研究 |
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| 引用本文： | 王斌,周勇,杨维军,唐仁茂.鄂西北夏季对流降水回波特征的研究[J].应用气象学报,2001,12(Z1):151-157. |
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| 作者姓名： | 王斌 周勇 杨维军 唐仁茂 |
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| 作者单位： | 1. 湖北省气象科学研究所,
2. 湖北省十堰市气象局, |
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| 基金项目： | 本文得到国家科技攻关（96-020-01-05）课题和湖北省科委重点课题“混合云人工催化技术方法及鄂东防雹作业判据的研究”的资助 |
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| 摘 要： | 该文通过对鄂西北1995～1999年6～9月273个对流回波个例进行统计分析，得出生成对流云的主要天气背景为西风低槽过境和副高外围的影响。对流云回波出现频率6、9月较少，7～8月较多。当地地形对对流云活动具有促进生成、约束移动、抬升加强等作用。对流云可分为单体、多单体、超级单体和混合云中对流等种类。6、9月对流云平均的生命时间较短，回波强度、顶高和强回波区顶高较低。相反，7～8月对流云回波特征值较高
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| 关 键 词： | 夏季 对流 雷达回波 |
| 修稿时间： | 2000年10月18 |
INVESTIGATION ON CHARACTERISTICS OF CONVECTIVE
ECHOES IN THE NORTHWESTERN AREA
OF HUBEI PROVINCE IN SUMMER |
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| Wang Bin,Zhou Yong,Tang Renmao,Yang Weijun.INVESTIGATION ON CHARACTERISTICS OF CONVECTIVE
ECHOES IN THE NORTHWESTERN AREA
OF HUBEI PROVINCE IN SUMMER[J].Quarterly Journal of Applied Meteorology,2001,12(Z1):151-157. |
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| Authors: | Wang Bin Zhou Yong Tang Renmao Yang Weijun |
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| Affiliation: | Wang Bin 1) Zhou Yong 2) Tang Renmao 1) Yang Weijun 1) 1) |
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| Abstract: | A statistic study of weather backgrounds, seasonal characteristics, echo patterns and eigenvalues concerning convective precipitation are calculated through analyzing 273 convective precipitation cases from June to September, 1995 through 1999 in the northwestern area of Hubei Province in summer. It is concluded that the main weather background includes the passage of a westly trough and the periphery influence of Subtropic High. The occurrence frequency of convective echoes is higher in July and August than in June and September. The terrain effect on convective cloud activity mainly includes formation promotion, movement restriction and uplift enhancement. Convective clouds can be divided into four kinds: convective cell, multiple cell, super cell and mixed cell. The lifetime of convective echo can be composed of three phases: formation and growth, developing and strengthening and weakening and fading. Convective clouds have shorter lifetime, lower echo intensity and echo peak heights and smaller strong echo extent in June and September than in July and August. |
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| Keywords: | Summer Convective precipitation Radar echo |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
