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首页> 外文期刊>Current Science: A Fortnightly Journal of Research >The unusual long track and rapid intensification of very severe cyclone Ockhi
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The unusual long track and rapid intensification of very severe cyclone Ockhi

机译：非常严重的旋风器iochhi的不寻常长轨迹和快速增强

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Cyclone Ockhi in November 2017, was the first very severe cyclone to form over the Lakshadweep Sea since 1925, resulting in a death toll of 844 in India and Sri Lanka. The distance travelled, duration and accumulated cyclone energy were significantly larger for cyclone Ockhi, in comparison with the climatological cyclone records. It intensified rapidly from a depression to a cyclone in a span of 9 h and further to a very severe cyclone in 24 h. The present study shows that the Madden-Julian Oscillation and warm oceanic conditions provided favourable dynamic and thermodynamic conditions for the genesis of cyclone Ockhi. The favourable thermodynamic conditions due to warm sea-surface temperature over southeast Arabian Sea also helped in the intensification of the cyclone during its early and mature stages. Meanwhile, the unusual long track was steered by upper-level winds. The vital role of ocean temperature in the genesis and rapid intensification of the cyclone highlights the need for efficiently incorporating the coupled ocean-atmospheric conditions in cyclone forecast models. The Arabian Sea needs to be closely monitored for future storms since climate projections indicate that the rapid warming in the basin will continue into the future.
机译：自1925年11月11月11月11月11月的Cyclone Iochi是第一个在Lakshadweep海上形成的非常严重的旋风，导致印度和斯里兰卡844的死亡人数。与气候旋风记记录相比，旋风器IOCHI的距离，持续时间和累积的旋风能量显着较大。它从抑郁症迅速加剧到9小时的脉冲旋转中，并且在24小时内进一步到一个非常严重的旋风分离器。本研究表明，Madden-Julian振荡和温暖的海洋状况为Cyclone Iochhi的成因提供了有利的动态和热力学条件。由于东南阿拉伯海洋温暖的海面温度导致的良好热力学条件也有助于在早期和成熟阶段进行旋风分离症。同时，不寻常的长轨道由上层风引导。海洋温度在旋风分离器的成因和快速增强中的重要作用突出了有效地掺入旋风预测模型中耦合的海洋大气条件。由于气候预测表明盆地的快速变暖将继续未来，阿拉伯海需要密切监测未来的风暴。

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