Shear Wave Velocity in the Top of the Earth’s Inner Core
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Analysis of PKIIKP waves reflected off the inner surface of the solid core boundary and recorded close to the antipode indicates that the shear wave velocity at its top can be 10–60% below the value of 3.5 km/s envisaged by standard models of the Earth.
Digital seismic data were provided by IRIS DMC (grant no. EAR-1261681NSF), United States. This work was carried out as part of a state assignment for the Institute of Geosphere Dynamics, Russian Academy of Sciences (reg. no. AAAA-A19-119022090015-6) using the equipment of the Center for Collective Use of Ultrahigh-Performance Computing Resources, Moscow State University .
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