Abstract—

The results of numerical simulation of kilometer-sized asteroid impacts on different types of terrain (a flat surface, a mountain, and a depression) are presented. The results show that terrain features significantly affect the amplitude of the shock wave propagating along the surface, the fireball size, the radiation fluxes on the surface, and the distribution of ejecta around the crater. This effect is significant if terrain inhomogeneities are equal to or larger than the impactor in size.

中文翻译：

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地形对撞击坑的影响

摘要-

给出了千米大小的小行星撞击不同类型的地形（平坦的表面，山脉和洼地）的数值模拟结果。结果表明，地形特征显着影响沿表面传播的冲击波的幅度，火球的大小，表面的辐射通量以及弹坑周围的喷出物分布。如果地形不均匀性等于或大于撞击器的大小，则此效果非常重要。