Does SPEFCEM2D scale kernels?
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AbolfazlKhanMo commented
Hi everyone,
I did a little experiment; two exact simulations but two different source amp_factor. The kernels are precisely the same.
Why are these kernels the same? Shouldn't they be different?
Does SPECFEM2D scale the kernels based on the source amplification factor?
danielpeter commented
As a general remark, the sensitivity kernels depend on the adjoint source(s) you use.
in your case, I assume that you used adjoint sources for traveltime misfits. for such traveltime sensitivity kernels, the sensitivity is independent of the source amplitude. That is, you did a nice validation test to check whether the numerical results are indeed independent of the source amplitude factor :)