Type II radio bursts are generally observed in association with flare-generated or coronal-mass-ejection-driven shock waves. The exact shock and coronal conditions necessary for the production of type II radio emission are still under debate. Shock waves are important for the acceleration of electrons necessary for the generation of the radio emission. Additionally, the shock geometry and closed field line topology, e.g., quasi-perpendicular shock regions or shocks interacting with streamers, play an important role for the production of the emission. In this study we perform a 3D reconstruction and modeling of a shock wave observed during the 2014 November 5 solar event. We determine the spatial and temporal evolution of the shock properties and examine the conditions responsible for the generation and evolution of type II radio emission. Our results suggest that the formation and evolution of a strong, supercritical, quasi-perpendicular shock wave interacting with a coronal streamer were responsible for producing type II radio emission. We find that the shock wave is subcritical before and supercritical after the start of the type II emission. The shock geometry is mostly quasi-perpendicular throughout the event. Our analysis shows that the radio emission is produced in regions where the supercritical shock develops with an oblique to quasi-perpendicular geometry.

II型射电暴通常与耀斑产生或日冕物质抛射驱动的冲击波有关。产生 II 型无线电发射所需的确切冲击和日冕条件仍在争论中。冲击波对于产生无线电发射所必需的电子的加速很重要。此外，激波几何形状和闭合场线拓扑结构，例如准垂直激波区域或与拖缆相互作用的激波，对发射的产生起着重要作用。在这项研究中，我们对 2014 年 11 月 5 日太阳事件期间观测到的冲击波进行了 3D 重建和建模。我们确定了冲击特性的空间和时间演变，并检查了导致 II 型无线电发射的产生和演变的条件。我们的研究结果表明，强、超临界、准垂直冲击波与日冕流光相互作用的形成和演化是产生 II 型无线电发射的原因。我们发现，在 II 型发射开始之前，冲击波是亚临界的，之后是超临界的。在整个事件中，激波几何形状大多是准垂直的。我们的分析表明，无线电发射产生于超临界冲击以倾斜到准垂直几何形状发展的区域。在整个事件中，激波几何形状大多是准垂直的。我们的分析表明，无线电发射产生于超临界冲击以倾斜到准垂直几何形状发展的区域。在整个事件中，激波几何形状大多是准垂直的。我们的分析表明，无线电发射产生于超临界冲击以倾斜到准垂直几何形状发展的区域。