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首页> 外文会议>Joint Conference of the National Society of Black Physicists and the National Society of Hispanic Physicists >Formation of African Easterly Waves andMesoscale Convective Systems over EasternAfrica and its Implication to TropicalCyclogenesis over Eastern Atlantic Ocean
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Formation of African Easterly Waves andMesoscale Convective Systems over EasternAfrica and its Implication to TropicalCyclogenesis over Eastern Atlantic Ocean

机译：非洲珊瑚礁的形成和Easternafrica的尺寸对流系统及其对东部大西洋热带胞生物体的含义

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摘要

The formation of African easterly waves and mesoscale convective systems in eastern North Africa and its impacts on the tropical cyclogenesis over the eastern Atlantic Ocean is studied. Based on numerical simulations, AEWs can be produced by vortex shedding from the EH. The lee vortex is generated mainly by the blocking of the EH and helped by the horizontal shear associated with the northeasterly wind and the jet passing through the Turkana channel. The MCS was originated from the moist convection over the EH triggered by diurnal sensible heating. When the MCS moved to the lee of the mountain, it merged with the lee vortex of the AEW train and formed the coupled AEW-MCS system. Numerical simulations of a regional climate model indicate that the simulated fields do possess the AEW characteristics and the convection was generated over the EH, and the pre-Alberto AEW-MCS system was generated near the lee of the EH. Finer-resolution numerical simulations demonstrate that the vortex generated on the lee and MCS over the mountain eventually merge and become an AEW-MCS system which might serve as a precursor of tropical cyclone.
机译：研究了北非东部的非洲珊瑚波和迈空对流系统及其对东大西洋热带环比的影响。基于数值模拟，可以通过eh的涡旋流动来生产一步。 Lee Vortex主要通过阻塞EH而产生，并通过与东北风相关的水平剪切和通过土耳其通道的喷气机帮助。 MCS源自欧洲州欧洲贺油的潮湿对流。当MCS搬到山的李时，它将其与一列一列汽车的Lee Vortex合并，并形成了耦合的EEV-MCS系统。区域气候模型的数值模拟表明，模拟领域确实具有通过EH产生的一种特征和对流，并在eh的lee附近产生了预先生成的alberto aew-mcs系统。更精细分辨率的数值模拟表明，在山上的李和MCS上产生的涡流最终合并并成为一种AEW-MCS系统，它可能是热带气旋的前兆。

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