| 2017年7月14日鄂东局地风雹过程成因分析 |
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| 引用本文： | 童红梅,赵熙,卫文芳,刘怡.2017年7月14日鄂东局地风雹过程成因分析[J].安徽农业科学,2018,46(7):133-137. |
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| 作者姓名： | 童红梅 赵熙 卫文芳 刘怡 |
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| 作者单位： | 湖北省黄石市气象局,湖北黄石,435002;民航山东空管分局气象台,山东济南,430074;四川省崇州市气象局,四川崇州,611230 |
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| 摘 要： | 从天气系统、物理量场、回波特征等方面对2017年7月14日鄂东发生的一次局地强对流风雹过程进行分析,结果发现,此次风雹天气是在副高外围高温高湿的不稳定环境下,低层水汽辐合、干层侵入和地面辐合共同触发生成多单体对流风暴,对流风暴的雷达回波表现出明显的后向传播特征.从预报角度来看,根据EC等数值预报产品分析14日风场日白天潜势条件较好,尤其在17:00,预报场在鄂东地区报出一个明显的水汽辐合区,具备了触发强对流的条件.
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| 关 键 词： | 风雹 天气形势 物理量场 回波特征 |
Analysis on the Causes of Local Hailstorm Process in Eastern Hubei Province on July 14,2017 |
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| Abstract: | From the aspects of weather system,physical field, echo characteristics and so on,a strong local convective hailstorm process oc-curred in eastern Hubei Province on July 14,2017 was analyzed.The results showed that the hail weather was triggered by the convergence of low-level water vapor,dry-layer intrusion and ground convergence in the unstable environment of the subtropical high-temperature and high-hu-midity environment.The radar echo of convective storm showed obvious backward propagation characteristics.From a forecast point of view, according to EC and other numerical forecast product analysis on the 14th daytime wind conditions were better daytime potential conditions,es-pecially at 17:00, the forecast field in the eastern Hubei Province reported a significant water vapor convergence zone with the conditions to trigger strong convection. |
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