对流风暴中几千米到十几千米尺度的小尺度涡旋。
...最具破坏性的致命龙卷风发生在超级细胞雷暴(Supercell)的时候,“超级细胞”是伴随着中气旋的旋转雷暴,中气旋(Mesocyclone)是有严格雷达定义的环流。(“超级细胞”也可以产生破坏性冰雹,不旋的剧烈强风,罕见频繁的闪电,以及暴洪。
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The echoes of strip shape of cold front integrated the echo of block before cold front and developed rapidly. And mesocyclone appeared.
冷锋带状回波与冷锋前方块状回波结合后迅速发展,有中气旋出现。
参考来源 - 一次区域性暴雨过程的中尺度雨团特征分析Theoretical analysis and experimental results demonstrate that, methods used in this paper are effective for mesocyclone recognition based on Doppler radar, and can be applied to the practical situations.
实验结果及理论分析表明,本文的方法可以有效识别出中气旋,并能一定程度上满足实际应用的要求。
参考来源 - 基于多普勒雷达图像的中气旋识别·2,447,543篇论文数据,部分数据来源于NoteExpress
成熟阶段最重要的特征是持续存在的中气旋。
At maturity stage, the sustaining mesocyclone is the most important characteristic.
径向速度图上,龙卷出现时超级单体风暴同时具有龙卷涡旋特征(TVS)和中气旋特征。
When tornado emerges, tornado vortex (TVS) and mesocyclone in the supercell storm can be found in the radial velocity chart.
速度图上涡旋状回波区对应着连续出现中气旋的现象,说明强风暴单体为具有涡旋形态的超级单体;
The fact that the vortex-shaped area in the velocity map had a continuous mesoscale cyclonic flow indicates that the severe storm was a supercell storm.
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