Crustal deformation at long Valley Caldera, eastern California, 1992-1996 inferred from satellite radar interferometry
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Abstract
Satellite radar interferometric images of Long Valley caldera show a pattern of surface deformation that resembles that expected from analysis of an extensive suite of ground-based geodetic data. Images from 2 and 4 year intervals respectively, are consistent with uniform movement rates determined from leveling surveys. Synthetic interferograms generated from ellipsoidal-inclusion source models based on inversion of the ground-based data show generally good agreement with the observed images. Two interferograms show evidence for a magmatic source southwest of the caldera in a region not covered by ground measurements. Poorer image quality in the 4 year interferogram indicates that temporal decorrelation of surface radar reflectors is progressively degrading the fringe pattern in the Long Valley region.
Publication type | Article |
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Publication Subtype | Journal Article |
Title | Crustal deformation at long Valley Caldera, eastern California, 1992-1996 inferred from satellite radar interferometry |
Series title | Geophysical Research Letters |
DOI | 10.1029/97GL02597 |
Volume | 24 |
Issue | 20 |
Year Published | 1997 |
Language | English |
Publisher | American Geophysical Union |
Description | 4 p. |
First page | 2519 |
Last page | 2522 |
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