Lin, Yu-nung Nina and Kositsky, Andrew P. and Avouac, Jean-Philippe
PCAIM joint inversion of InSAR and ground-based geodetic time series: Application to monitoring magmatic inflation beneath the Long Valley Caldera.
Geophysical Research Letters, 37
Art. No. L23301.
Use this Persistent URL to link to this item: http://resolver.caltech.edu/CaltechAUTHORS:20110104-093822416
This study demonstrates the interest of using a Principal Component Analysis-based Inversion Method (PCAIM) to analyze jointly InSAR and ground-based geodetic time series of crustal deformation. A major advantage of this approach is that the InSAR tropospheric biases are naturally filtered out provided they do not introduce correlated or high amplitude noise in the input times series. This approach yields source models which are well-constrained both in time and space due to the temporal resolution of the ground-based geodetic data and the spatial resolution of the InSAR data. The technique is computationally inexpensive allowing for the inversion of large datasets. To demonstrate the performance of this approach, we apply it to the 1997–98 magmatic inflation event in the Long Valley Caldera, California.
|Additional Information:||© 2011 American Geophysical Union.
Received 8 October 2010; accepted 26 October 2010; published 3 December 2010.
We thank Mark Simons for providing the SAR data used in this study. APK thanks Tapio Schneider for helpful conversations. This research was partially funded by the Gordon and Betty Moore Foundation and by the Keck Institute of Space Studies. It is Caltech Tectonics Observatory contribution 137.|
|Group:||Caltech Tectonics Observatory, Seismological Laboratory, Keck Institute for Space Studies|
|Funding Agency||Grant Number|
|Gordon and Betty Moore Foundation||UNSPECIFIED|
|Keck Institute for Space Studies (KISS)||UNSPECIFIED|
|Subject Keywords:||joint inversion; InSAR; PCAIM; Long Valley Caldera|
|Other Numbering System:|
|Other Numbering System Name||Other Numbering System ID|
|Caltech Tectonics Observatory||137|
|Official Citation:||Lin, Y. N., A. P. Kositsky, and J.-P. Avouac (2010), PCAIM joint inversion of InSAR and ground-based geodetic time series: Application to monitoring magmatic inflation beneath the Long Valley Caldera, Geophys. Res. Lett., 37, L23301, doi:10.1029/2010GL045769|
|Usage Policy:||No commercial reproduction, distribution, display or performance rights in this work are provided.|
|Deposited On:||25 Jan 2011 21:54|
|Last Modified:||28 Oct 2016 18:57|
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