TY  - JOUR
AU  - C. Tape, Q. Liu
PY  - 2009//
TI  - Adjoint tomography of the southern California crust.
T2  - Science
JO  - SCIENCE
SP  - 988
EP  - 992
VL  - 325
N2  - Using an inversion strategy based on adjoint methods, we developed a three-dimensional seismological model of the southern California crust. The resulting model involved 16 tomographic iterations, which required 6800 wavefield simulations and a total of 0.8 million central processing unit hours. The new crustal model reveals strong heterogeneity, including local changes of ±30% with respect to the initial three-dimensional model provided by the Southern California Earthquake Center. The model illuminates shallow features such as sedimentary basins and compositional contrasts across faults. It also reveals crustal features at depth that aid in the tectonic reconstruction of southern California, such as subduction-captured oceanic crustal fragments. The new model enables more realistic and accurate assessments of seismic hazard.
SN  - 0036-8075
N1  - exported from refbase (http://publi.ipev.fr/polar_references/show.php?record=5807), last updated on Thu, 19 Nov 2009 17:45:32 +0100
ID  - C.Tape2009
ER  -