Join Inversion of DC and HVSR curve
Posted: Fri Dec 19, 2025 7:02 pm
Hi Marc,
I have been trying to jointly invert a HV curve with a dispersion curve, the DC comes from DAS data and the HV is geophone data. I can easily find geological model that fit these two individually well, but when trying to fit them together I get really poor fits for DC, I tried giving more weight but it's not fixing it fully. do you have any suggestions please? it's difficult to understand which depth this HV curve is sensitive to and what interfaces are causing the two main peaks so the only way to deal with the non uniqueness was to bring a DC to the mix.
Thank you!
I have been trying to jointly invert a HV curve with a dispersion curve, the DC comes from DAS data and the HV is geophone data. I can easily find geological model that fit these two individually well, but when trying to fit them together I get really poor fits for DC, I tried giving more weight but it's not fixing it fully. do you have any suggestions please? it's difficult to understand which depth this HV curve is sensitive to and what interfaces are causing the two main peaks so the only way to deal with the non uniqueness was to bring a DC to the mix.
Thank you!