The Seismic Correlation Signature of Moderate-Scale Flow in the Sun

摘要: Flows in the solar convection zone introduce correlation between distinct horizontal-wavevector and frequency components of wave motion Sun. We derive expressions for linear sensitivity helioseismic data to subphotospheric supergranular-scale flow, use inversions. The calculations are based on a model randomly excited p- f-mode oscillations plane-parallel envelope with flows. Woodard described simple inversion depth- time-independent supergranular flow. presented this paper generalize previous case flow velocity that depends depth varies slowly time. describe method estimating kernel from observations. observed theoretical kernels agree within ≈20%.