科氏力对汶川地震堰塞体形成的影响

Influence of Coriolis Force on the Formation of Barrier Body from the Wenchuan Earthquake

针对在野外调查过程中发现汶川地震区各流域右岸发生滑坡形成堰塞体的比例普遍高于左岸,河谷坡度明显右岸大于左岸的现象,经提取研究区滑坡前河谷断面的有关基础数据,计算出河谷坡度和不对称系数等河谷特征指标,发现研究区近七成河谷右岸坡度大于左岸,"左倾型"河谷的占比超过半数,这与科氏力在北半球对运动质点的作用结果一致,得出科氏力与汶川地震堰塞体形成有一定的相关性。

Geological survey indicates that the proportion of landslide in the right bank of rivers in the Wenchuan earthquake-stricken area is higher than that in the left bank.The calculation shows that the slope on the right bank of rivers of the Wenchuan earthquake-stricken area is larger than that on the left bank.It is consistent with the effect of Coriolis force on moving particles in the northern hemisphere which indicates that there is a certain correlation between the Coriolis force and the formation of the barrier body from the Wenchuan earthquake.