none 10.1190/geo2023-0583.1 Society of Exploration Geophysicists Society of Exploration Geophysicists 186 159444555 5981 2025121212533111900 10.1190 2025-12-12T17:53:41Z 2024-04-01T09:28:03Z 1 Geophysics 0016-8033 1942-2156 01 07 2024 89 4 Qi Hao Jilin University 1 , College of Geoexploration Science and Technology, Changchun, China. xqi.hao@gmail.com (corresponding author) http://orcid.org/0000-0003-3176-3222 Ilya Tsvankin Colorado School of Mines 2 , Center for Wave Phenomena, Department of Geophysics, Golden, Colorado, USA. itsvanki@mines.edu http://orcid.org/0000-0002-9137-3990 ABSTRACT Separating wave modes on seismic records is an essential step in imaging of multicomponent seismic data. Viscoelastic anisotropic models provide a realistic description of subsurface formations that exhibit anisotropy of velocity and attenuation. However, mode separation has not been extended to viscoelastic anisotropic media yet. Here, we propose an efficient approach to wavefield decomposition that takes velocity and attenuation anisotropy into account. Our algorithm operates in the frequency-wavenumber domain and, therefore, is suitable for general dissipative models. We present exact equations for wavefield decomposition in arbitrarily anisotropic attenuative homogeneous media. Then the proposed approach is applied to viscoelastic constant-Q VTI (transversely isotropic with a vertical symmetry axis) models. 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