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1. Seismic Attenuation Anomalies

   Linked via "finite-difference simulations"

   The existence of significant, localized attenuation anomalies necessitates adjustments in standard seismological modeling techniques, particularly those relying on ray tracing or the Born approximation, which often assume homogeneous $Q$ structures or simple linear gradients.
   The effective attenuation factor $\Gamma$ used in modern finite-difference simulations must account for the **Hypothetical Isotropic Attenuation Factor ($\text{HIAF}$…