Asymptotic solutions to the quasi-static spheroidal and toroidal deformation of the SNREI earth

Shuhei OKUBO; Yu TAKAGI

Presentation information

Oral

Symbol S (Solid Earth Sciences) » S-GD Geodesy

[S-GD21_28AM2] Geodesy General Contributions

Mon. Apr 28, 2014 11:00 AM - 12:45 PM 413 (4F)

Convener:*Kazuhiro Takashima(Geospatial Information Authority of Japan, Ministry of Land, Infrastructure, Transport and Tourism), Takahito Kazama(Graduate School of Science, Kyoto University), Chair:Tadafumi Ochi(Active Fault and Earthquake Research Center, Geological Survey of Japan, The National Institute of Advanced Industrial Science and Technology), Kazuyoshi Oichi(Hydrographic and Oceanographic Department, Japan Coast Guard)

12:30 PM - 12:45 PM

[SGD21-14] Asymptotic solutions to the quasi-static spheroidal and toroidal deformation of the SNREI earth

*Shuhei OKUBO¹, Yu TAKAGI¹ (1.Earthquake Research Institute, The University of Tokyo)

Keywords:Internal elastic deformation, Green's function, SNREI earth, Asymptotic expansion

Asympotic solutions to the quasi-static deformation of SNREI earth are essential to compute Green's functions, i.e., deformations due to a point load and a point dislocation. So far, only the surface deformations have been presented by previous authors. That is, internal stress/strain fields are not left uncalculated because of lack of asymptotic solutions to the internal deformation fields. In this talk, we present complete sets of spheroidal/toroidal deformations when spherical harmonic degree n increases to infinitiy.