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Assessing Upper Tropospheric Jet Streak Proximity Using the Rossby Radius of Deformation

机译：使用变形的罗斯比半径评估对流层上射流的近距离

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The Rossby radius of deformation is a parameter that describes the relative role of buoyant and inertial forces for atmospheric phenomena in a flow regime. It will be demonstrated that it can also be used to determine whether or not forcing for vertical motions in the region between upper level tropospheric jet streaks overlaps or interacts. Using predefined points in the entrance and exit regions of neighboring upper level jet streaks, the distance between them is calculated for each event. If they are closer than twice the Rossby radius of deformation, the resulting region affected by both streaks is termed the Rossby Radius of Deformation Overlap Zone (RRDOZ). Plan-view and cross-sectional analysis shows that ageostrophic transverse circulations within the RRDOZ led to enhanced upward vertical velocities as predicted in prior research. Lastly, a short-term climatology for overlap events in North America is derived, and these are classified according to three proposed archetypes.
机译：Rossby变形半径是一个参数，用于描述浮力和惯性力在流动状态下对大气现象的相对作用。将证明，它还可以用于确定在上层对流层射流条纹之间区域中的垂直运动强迫是否重叠或相互作用。使用相邻高层喷气条纹的入口和出口区域中的预定义点，可以为每个事件计算它们之间的距离。如果它们的距离比Rossby变形半径的两倍还近，则受两个条纹影响的最终区域将被称为Rossby变形重叠区半径（RRDOZ）。平面图和横截面分析表明，RRDOZ内的老龄化横向循环导致了先前研究中预测的向上垂直速度的提高。最后，得出了北美重叠事件的短期气候学，并根据提出的三种原型对它们进行了分类。

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