[S-IT21] 固体地球科学と材料科学の融合が切り拓く新展開

[SIT21-09] Waveform inversion for the structure of Earth's deep interior: Progress and Prospects

*河合 研志¹ (1.東京大学大学院理学系研究科地球惑星科学専攻)

キーワード：波形インバージョン、地球深部科学

We formulated the inverse problem of waveform inversion for localized 3-D seismic structure, computing partial derivatives of waveforms with respect to the elastic moduli at arbitrary points in space for anisotropic and anelastic media (Geller and Hara 1993) and applied our method to the assembled dataset to invert for 3-D seismological structure (Kawai et al. 2014; Konishi et al. 2014). In this presentation, we will introduce the recent progress of mainly our research group (Borgeaud et al. 2017, 2019; Suzuki et al. 2020) and discuss perspectives of waveform inversion studies on the structure of Earth's deep interior.