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首页> 外文期刊>Weather and forecasting >The 3 November tornadic event during Sydney 2000: Storm evolution and the role of low-level boundaries
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The 3 November tornadic event during Sydney 2000: Storm evolution and the role of low-level boundaries

机译：2000年悉尼的11月3日龙卷风事件：风暴的演变和低空边界的作用

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Several severe thunderstorms, including a tornadic supercell, developed on the afternoon of 3 November 2000, during the Sydney 2000 Forecast Demonstration Project. Severe weather included three tornadoes, damaging wind gusts, hail to 7-cm diameter, and heavy rain causing flash flooding. A unique dataset was collected including data from two Doppler radars, a surface mesonet, enhanced upper-air profiling, storm photography, and a storm damage survey. Synoptic-scale forcing was weak and mesoscale factors were central to the development of severe weather. In particular, low-level boundaries such as gust fronts and the sea-breeze front played critical roles in the initiation and enhancement of storms, the motion of storms, and the generation of rotation at low levels. The complex and often subtle boundary interactions that led to the development of the tornadic supercell in this case highlight the need for advanced detection and prediction tools to improve the warning capacity for such events.
机译：2000年11月3日下午，在悉尼2000年预报示范项目期间，发生了几场严重的雷暴天气，包括一个飓风超级单体。恶劣的天气包括三场龙卷风，破坏性的阵风，直径为7厘米的冰雹以及大雨导致山洪泛滥。收集了一个独特的数据集，其中包括来自两个多普勒雷达的数据，地表气象子集，增强的高空剖面，风暴摄影和风暴破坏调查。天气尺度强迫很弱，中尺度因素对恶劣天气的发展至关重要。尤其是，阵风锋和海风锋等低空边界在暴风的发生和增强，暴风的运动以及低空旋转的产生中起着关键作用。在这种情况下，导致涡轮超级电池发展的复杂且通常是微妙的边界相互作用突显了对高级检测和预测工具的需求，以提高此类事件的预警能力。

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