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On Frontal Zone Analysis in the Tropical Region of the Northeast Brazil

机译：巴西东北部热带地区的锋区分析

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摘要

A frontal structure in the tropical region is different than in the extratropical region and traditional methods of frontal identification are not accurate. The use of a horizontal distribution of the equivalent potential temperature and its advection is the new aspect in frontal identification and will support forecasters in their daily operational practice. Six fronts over 3 years were identified by the method used in operational practice. Twenty fronts were registered by cloud bands together with the equivalent potential temperature and its advection maps. A cold front separated from the cyclone's center and affected weather on the Northeast Brazil.
机译：热带地区的额叶结构与温带地区的额叶结构不同，传统的额叶识别方法也不准确。使用等值潜在温度及其对流的水平分布是正面识别的新方面，并将为预报员的日常操作提供支持。通过在操作实践中使用的方法，确定了三年中的六个前沿。云带记录了二十条前沿，并记录了等效的潜在温度及其对流图。冷锋与气旋中心分离，并影响了巴西东北部的天气。

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