HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Figures Only Full Text Full Text (PDF) Electronic Supplement Services Email this article to a friend Similar articles in this journal Similar articles in ISI Web of Science Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via ISI Web of Science (1) Citing Articles via Google Scholar Google Scholar Articles by Kustowski, B. Articles by Ekström, G. Search for Related Content GeoRef GeoRef Citation

Nonlinear Crustal Corrections for Normal-Mode Seismograms

Bogdan Kustowski¹, Adam M. Dziewoski¹ and Göran Ekström²

¹ Department of Earth and Planetary Sciences
Harvard University
20 Oxford Street
Cambridge, Massachusetts 02138
kustowsk{at}eps.harvard.edu
dziewons{at}eps.harvard.edu
 (B.K., A.D.)
² Lamont-Doherty Earth Observatory
Department of Earth and Environmental Sciences
Columbia University
61 Route 9W
Palisades, New York 10964
 (G.E.)

We present an efficient and accurate method for calculating local nonlinear crustal effects on the eigenfrequency of free oscillations of the Earth. We implement the method in the calculation of synthetic normal-mode seismograms and demonstrate that neglecting the nonlinear crustal effects in the tomographic waveform inversion leads to velocity models that appreciably overestimate fast velocity anomalies beneath orogenic belts and cratons at 250–400 km depth.

Online material: Color versions of figures.