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Titolo:
Statistical tomography in anisotropic media by using crosshole traveltimesof qP wave and qSV wave
Autore:
Zhang, WS; He, QD;
Indirizzi:
Chinese Acad Sci, Inst Computat Math & Sci Engn Comp, State Key Lab Sci & Engn Comp, Beijing 100080, Peoples R China Chinese Acad Sci Beijing Peoples R China 100080 100080, Peoples R China Changchun Univ Sci & Technol, Dept Geophys, Changchun 130026, Peoples R China Changchun Univ Sci & Technol Changchun Peoples R China 130026 es R China
Titolo Testata:
CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
, volume: 42, anno: 1999, supplemento:, S
pagine: 195 - 203
SICI:
0898-9591(1999)42:<195:STIAMB>2.0.ZU;2-D
Fonte:
ISI
Lingua:
CHI
Soggetto:
TRANSVERSELY ISOTROPIC MEDIA; TIME TOMOGRAPHY; INVERSION;
Keywords:
anisotropy; crosshole tomography; regularization method; normal distribution; statistical hypothesis testing;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
21
Recensione:
Indirizzi per estratti:
Indirizzo: Zhang, WS Chinese Acad Sci, Inst Computat Math & Sci Engn Comp, State Key Lab Sci & Engn Comp, Beijing 100080, Peoples R China Chinese Acad Sci Beijing Peoples R China 100080 eoples R China
Citazione:
W.S. Zhang e Q.D. He, "Statistical tomography in anisotropic media by using crosshole traveltimesof qP wave and qSV wave", CH J GEO-CH, 42, 1999, pp. 195-203

Abstract

Crosshole tomography is usually carried out under the condition of isotropy. However, anisotropy exists in crust extensively. Considering the problemof aninsotrpic tomography has important theoretical and practical value. In the paper, based on the anisotropic traveltime disturbance theory, crosshole tomography by using qP- and qSV-wave traveltimes is studied. Compared with isotropic tomography, the anisotropic tomography is a more ill-posed problem. Here, combining regularization method and stastistical hypothesis testing theory, we proposed statistical crosshole tomography method and solvethe problem effectively. Numerical results show the method has the advantages of ideal precision, stable calculation and less influence confined by initial models, moreover, it can be extended to solve other geophysical inverse problems.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 18/09/20 alle ore 11:10:02