TY - JOUR
T1 - Teleseismic surface wave tomography in the western U.S. using the Transportable Array component of USArray
AU - Yang, Yingjie
AU - Ritzwoller, Michael H.
N1 - Copyright 2008 by the American Geophysical Union. Originally published in Geophysical research letters, Vol. 35, L04308. Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.
PY - 2008/2/28
Y1 - 2008/2/28
N2 - Fundamental mode Rayleigh waves recorded by the Transportable Array component of EarthScope/USArray from January 2006 through April 2007 are used to generate phasevelocity maps at periods from 25 to 100 sec across the western U.S., including Washington, Oregon, California, Nevada and western Idaho. At short periods (25-33 s), low velocity anomalies are observed in western Washington, western and central Oregon, northern California, the southern Sierra Nevada and the Snake River Plain. At intermediate and long periods (50-100 s), high velocities are seen in the Cascades, the southern Central Valley of California, California's Transverse Range, and the Columbia River Flood Basalt Province. The phase velocity maps are consistent with those obtained from ambient noise tomography at comparable periods. Short period phase velocities from ambient noise tomography and the longer-period phase velocities from teleseismic tomography, therefore, present natural data sets to invert jointly 3-D structure across the western U.S.
AB - Fundamental mode Rayleigh waves recorded by the Transportable Array component of EarthScope/USArray from January 2006 through April 2007 are used to generate phasevelocity maps at periods from 25 to 100 sec across the western U.S., including Washington, Oregon, California, Nevada and western Idaho. At short periods (25-33 s), low velocity anomalies are observed in western Washington, western and central Oregon, northern California, the southern Sierra Nevada and the Snake River Plain. At intermediate and long periods (50-100 s), high velocities are seen in the Cascades, the southern Central Valley of California, California's Transverse Range, and the Columbia River Flood Basalt Province. The phase velocity maps are consistent with those obtained from ambient noise tomography at comparable periods. Short period phase velocities from ambient noise tomography and the longer-period phase velocities from teleseismic tomography, therefore, present natural data sets to invert jointly 3-D structure across the western U.S.
UR - http://www.scopus.com/inward/record.url?scp=44249111001&partnerID=8YFLogxK
U2 - 10.1029/2007GL032278
DO - 10.1029/2007GL032278
M3 - Article
AN - SCOPUS:44249111001
SN - 0094-8276
VL - 35
SP - 1
EP - 5
JO - Geophysical Research Letters
JF - Geophysical Research Letters
IS - 4
M1 - L04308
ER -