局域层析成像，真是麻烦啊，对字数还有限制。(local tomography User's manual for SIMULPS12 for imaging Vp and Vp/Vs: A derivative of the Thurber tomographic inversion SIMUL3 for local earthquakes and explosions)

这是一个实现3D走时层析的Fortran程序包，里面包含正演方法、反演方法以及一些算例，是很好的层析技术学习材料。(FMtomo is a Fortran 90 software package that has been designed for 3D traveltime tomography.)