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Polarimetric Radar Observations from a Waterspout-Producing Thunderstorm

机译：产生喷水的雷暴的极化雷达观测

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A family of four waterspouts was produced by a convective cell over western Lake Michigan on 12 September 2013. This storm initiated along a boundary north of a mesolow in a low-level cold-air advection regime, and developed supercell characteristics once the second waterspout was in progress. Polarimetric characteristics of the storm, and of the development of supercell character, are presented. These observations represent the first documented polarimetric radar observations of waterspout-producing convection in the Great Lakes region. Unusually high differential reflectivity values accompanied this storm and its initiating boundary. The high values along the boundary are partially explained by a high density of dragonflies. High differential reflectivity values were present through much of the storm of interest despite very low aerosol concentration at low levels in the lake-influenced air mass. Finally, this case illustrates the importance of environmental awareness on waterspout-favorable days, especially when boundaries are nearby to serve as a potential source of enhanced environmental vertical vorticity.
机译：2013年9月12日，密歇根湖西部的对流单元产生了一个由四个喷口组成的家庭。这场风暴在低空平流条件下沿着中低层北部的边界发起，一旦第二个喷口被发现，便形成了超级格特征。进行中。介绍了风暴的极化特征以及超级电池特性的发展。这些观测结果是大湖区首次记录的对水喷流产生对流的偏振雷达观测结果。异常高的差分反射率值伴随着这场风暴及其起始边界。沿边界的高值部分由高密度的蜻蜓解释。尽管在受湖水影响的空气中低浓度的气溶胶浓度很低，但在大部分关注的风暴中仍存在较高的差分反射率值。最后，这个案例说明了在水利水准的日子里提高环境意识的重要性，特别是当边界靠近以作为增强环境垂直涡度的潜在来源时。

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