Polarimetric radar observations of the Jersey tornadic supercell on 1–2 November 2023

IF 2.3 4区地球科学 Q3 METEOROLOGY & ATMOSPHERIC SCIENCES

Weather Pub Date : 2024-09-13 DOI:10.1002/wea.7619

Matthew R. Clark

引用次数: 0

Abstract

A large tornado and severe hailstorm struck Jersey, Channel Islands, just before midnight on 1–2 November 2023. Radar data are analysed to explore the morphology of the parent supercell thunderstorm. A tornado debris cloud was evident in polarimetric fields, collocated with a reflectivity ‘debris ball’. The debris cloud comprised a small region of exceptionally low correlation coefficient (<0.8) collocated with differential reflectivity ≤0dB. In vertical section, the debris signature comprised a column of low correlation coefficient and high reflectivity that tilted north‐northeast with height and extended to at least 2km above ground level.

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2023 年 11 月 1-2 日对泽西岛龙卷风级超级大风的测偏振雷达观测结果

2023 年 11 月 1-2 日午夜前，海峡群岛的泽西岛遭受了一场大型龙卷风和严重冰雹袭击。通过分析雷达数据，探索了母体超大型雷暴的形态。在偏振场中，龙卷风碎片云非常明显，与反射率 "碎片球 "同处一地。碎片云包括一小块相关系数极低（0.8）的区域，其反射率差值≤0dB。在垂直剖面上，碎片特征包括一个低相关系数和高反射率的柱体，随着高度的增加向北-东北倾斜，并延伸到离地面至少 2 千米的地方。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Weather METEOROLOGY & ATMOSPHERIC SCIENCES-

CiteScore

2.80

自引率

5.30%

发文量

191

审稿时长

6-12 weeks

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