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首页> 外文期刊>Journal of Geoscience and Environment Protection >Comparative Analysis of Strong Convection Process of Convective Cold Cloud and Convective Warm Cloud Type
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Comparative Analysis of Strong Convection Process of Convective Cold Cloud and Convective Warm Cloud Type

机译：对流冷云与对流暖云型强对流过程的对比分析。

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On the night of April 20, 2017, there was a heavy rain in Longyan City, accompanied by strong convective weather such as strong lightning, short-term heavy precipitation, and 6 - 8 thunderstorms. The three-hour rain intensity and the six-hour rain intensity of Shanghang Tongxian Township and Nanyang Town were once in a century. Through the use of radar, radar wind profile and lightning locator data, the process can be divided into two phases: The first stage is the strong precipitation stage of Changting Datong Town during the 20 - 22 periods on the 20th. The process is accompanied by short-term heavy precipitation (59.7 mm/h), strong lightning activity, and 6 - 8 thunderstorm gales. It is a convective cold cloud dominated precipitation. The second stage is the strong precipitation stage of Shanghang Tongxian Township on the 21st, 02 - 04, and the short-term strong precipitation intensity reaches 75.7 mm/h, but the lightning and wind activity are weak, which is the convective warm cloud-oriented precipitation. There are significant differences in the strong convective weather between the two phases in the same background. The analysis shows that the strong echo of the first stage radar (above 60 dBz) is block-shaped southward, the speed of movement is fast, the height of the echo top is high, and the rear nascent monomer forms a train effect. In the second stage, the southwest-northeast-oriented convective zone moves to the northeast direction, forming the train effect of the echo zone. The center intensity is above 50 dBz, the echo top height is low, and the precipitation center moves slowly. This caused a large amount of accumulated rainfall. In this paper, the radar data is used to analyze the heavy rainfall process on the west coast of the straits, which has certain indication significance for the predictability of strong convective weather.
机译：2017年4月20日晚上，龙岩市出现大雨，并伴有强对流天气，如强雷电，短期强降水和6-8次雷暴。上杭通县乡和南阳镇的三小时降雨强度和六小时降雨强度是一个世纪。通过使用雷达，雷达风廓线和雷电定位仪数据，该过程可以分为两个阶段：第一阶段是20日20-22年间长汀大同镇的强降水阶段。该过程伴随着短期的强降水（59.7毫米/小时），强烈的闪电活动以及6-8个雷暴大风。这是对流冷云为主的降水。第二阶段是上杭通县乡镇在21日02-04的强降水阶段，短期强降水强度达到75.7 mm / h，但闪电和风活动较弱，这是对流暖云-定向降水。在相同背景下，两个阶段之间的强对流天气存在显着差异。分析表明，第一级雷达的强回波（高于60 dBz）呈块状向南，移动速度快，回波顶部高度高，后部新生单体形成列车效应。在第二阶段，西南向东北的对流带向东北方向移动，形成回波带的火车效应。中心强度高于50 dBz，回波顶部高度低，降水中心移动缓慢。这造成了大量的降雨。本文利用雷达数据分析了海峡西岸的强降雨过程，对强对流天气的可预测性具有一定的指示意义。

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