2009 Fiscal Year Final Research Report
Development of a new scheme of the joint-inversion for seismic and resistivity structures
| Project/Area Number |
19540442
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (C)
|
| Allocation Type | Single-year Grants |
|---|
| Section | 一般 |
|---|
| Research Field |
Solid earth and planetary physics
|
|---|
| Research Institution | The University of Tokyo |
|---|
Principal Investigator |
UYESHIMA Makoto The University of Tokyo, 地震研究所, 准教授 (70242154)
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
KATO Aitaro 東京大学, 地震研究所, 助教 (20359201)
OGAWA Tsutomu 東京大学, 地震研究所, 助教 (00345175)
TAKEI Yasuko 東京大学, 地震研究所, 准教授 (30323653)
|
|---|
| Research Collaborator |
MORITA Yoko 東京大学, 理学系研究科・修士課程, 学生
USUI Yoshiya 東京大学, 理学系研究科・修士課程, 学生
PRASANTA KUMAR Patro Bantu 東京大学, 地震研究所, JSPS外国人特別研究員
|
|---|
| Project Period (FY) |
2007 – 2009
|
| Keywords | 地球内部構造 / 比抵抗 / 地震波速度 / 地震電磁気同時解釈 / 物質情報抽出 |
|---|
| Research Abstract |
In order to derive detailed information on the subsurface interstitial fluids and elucidate mechanism of crustal activities such as seismic and volcanic activities related to existence of the fluids, we developed a new 2-D inversion scheme, which jointly inverted EM responses and seismic travel times. In the scheme, material characteristics such as water content, pore geometry and host rock type are estimated as model parameters and structures of resistivity and seismic velocity are obtained at the same time. Since tests of the scheme by using synthetic models revealed necessity of further improvements in respective EM and seismic inversion methods, we also tried to improve the EM inversion scheme.
|
