Is anyone here familiar with how to understand a diffraction hyperbola?
In the attached figure the first picture is a velocity model and the second picture is a NMO stack and also a corresponding semblance plot.
Why does the diffraction apex and the reflection equal to the water layer around 1500 to 2000m/s?
And what does it mean when the diffraction has low velocity on the apex and increase its velocity further in the flanks
Why does it look like the apex is large? Like a leakage? What indicates this?
For the NMO stack:
What does it actually indicate?
Why is the amplitude high on the apex?
For semblance plot:
Why is the semblance at the highest on the apex? What does actually a semblance plot of a diffraction show?
Hope someone can help!
