Krall et al. (2020) simulated metal ion layers in the E region ionosphere observed by the ISR at Arecibo, by considering vertical ion-motion and convergence driven by zonal and meridional winds. They report that the observed altitude structure is produced if only meridional wind forces are included in the model. Also, layer formation below 110 km, where the ions are very weakly magnetized, is supported mainly by meridional wind shears. We question these finding which contrast with our present knowledge. We show that layer forming in the lower E region is controlled by zonal, rather than meridional, wind shears.

中文翻译：

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关于海拔依赖性和纬向和经向风切变在E区金属离子层生成中的作用

Krall等。（2020年）通过ISR在Arecibo观测到的E区电离层中的金属离子层，考虑了纬向和子午风驱动的垂直离子运动和会聚。他们报告说，如果仅在模型中包含子午风力，就会产生观测到的高度结构。同样，在110 km以下的层中，离子被非常弱地磁化，主要由子午风切变来支持。我们对这些发现提出质疑，这与我们目前的知识形成了鲜明对比。我们表明，较低E区的层形成是受纬向风切变而不是经向风切变控制的。