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.
Suggested Citation
Thatcher, W., and Massonnet, D., 1997, Crustal deformation at long Valley Caldera, eastern California, 1992-1996 inferred from satellite radar interferometry: Geophysical Research Letters, v. 24, no. 20, p. 2519-2522, https://doi.org/10.1029/97GL02597.
| Publication type | Article |
|---|---|
| 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 |
| Publication Date | October 15, 1997 |
| Year Published | 1997 |
| Language | English |
| Publisher | American Geophysical Union |
| Description | 4 p. |
| First page | 2519 |
| Last page | 2522 |