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下面计算断层面法向的公式,到底哪个对呢???
参考:
地震法向矢量和滑动向量计算 - 山野莽夫 (shanyemangfu.com)
地震矩张量(地震的DNA)浅谈 - 知乎 (zhihu.com)
许才军2015出版《地球物理大地测量反演理论与应用》 公式9.59
5.4 Determination of normal and shear stresses on the fault plane (dnicolasespinoza.github.io)
Peiliang Xu, Determination of regional stress tensors from fault-slip data, Geophysical Journal International, Volume 157, Issue 3, June 2004, Pages 1316–1330, https://doi.org/10.1111/j.1365-246X.2004.02271.x
对比下面两种差异,可以发现定义的坐标系有差异:
第一种,定义NED地理坐标系;
The coordinate system basis is comprised of nd(dip), ns (strike), and nn(normal) vectors: d-s-n right-handed basis. The three vectors depend solely in two variables: strike and dip of the fault.
第二种,定义NEU地理坐标系;
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