Adjoint-State Attenuation Tomography: Method and Application to North New Zealand

File 'Measured_P_tstar' includes all the measured P-wave t* data in North New Zealand. File 'NNZ_Qp_model_1Hz' presents the inverted Qp model at 1 Hz for North New Zealand. This updated model is derived from a layered (non-uniform) initial Qp model, as requested by a reviewer. In contrast, the file 'NNZ_Qp_model_1Hz' in Version 1 corresponds to the inversion result obtained using a uniform initial Qp model. ------update time - (2026-03-24).