We propose a novel framework for teleseismic traveltime tomography that requires no ray
tracing. The tomographic inverse problem is formulated as an Eikonal equation‐constrained …

The Earth's upper inner core has a quasi-hemispherical velocity structure. One of the two
quasi-hemispheres has a high-velocity region centered beneath Southeast Asia and is …

Although previous tomographic studies found a large low S-velocity province (LLSVP) in the
lowermost mantle beneath the Pacific, due to a lack of resolution it was unclear whether the …

The Earth's inner core (IC) and the innermost inner core (IMIC) are not merely subjects of
academic curiosity, but they likely hold crucial information about the Earth's evolution and its …

TomoATT is an open-source software package, aiming at determining seismic velocity and
azimuthal anisotropy based on adjoint-state traveltime tomography methods. Key features of …

We review studies that focus on the seismic structure of the lower mantle and outer and
inner cores and that used seismic arrays and networks throughout East, South, and …

A New Crustal Thickness and VP/ VS Model of the Indochina Peninsula Page 1 A New Crustal
Thickness and VP/ VS Model of the Indochina Peninsula Zehuan Wen1, Jiayuan Yao*1 , Rong …

デンマークの Inge Lehmann によって外核の下に内核が見つかったのは 1936 年のことです
(Lehmann, 1936; Bolt, 1987). 地殻・マントル・外核だけ考えていては波がこないはずの距離・時間 …