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| Titel |
Coseismic slip inversion based on InSAR arc measurements |
| VerfasserIn |
C. Wang, X. Ding, Q. Li |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1561-8633
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| Digitales Dokument |
URL |
| Erschienen |
In: Natural Hazards and Earth System Sciences ; 14, no. 3 ; Nr. 14, no. 3 (2014-03-20), S.649-656 |
| Datensatznummer |
250118338
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| Publikation (Nr.) |
 copernicus.org/nhess-14-649-2014.pdf |
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| Zusammenfassung |
| We present a new method for
inverting coseismic slip distribution based on arc measurements of InSAR
interferograms. The method only solves the integer ambiguities on the
selected arcs so that the challenging task from global unwrapping of low
coherence interferograms can be avoided. The simulated experiment results
show that the new method recovered the given slip distribution well at
different coherence quality levels. However, the conventional method with
global interferogram unwrapping fails when the interferogram has some
isolated areas. In addition, the new method is capable of using surface
rupture offset data gathered in the field. We apply the proposed method to
study the 2010 Yushu, China Ms 7.1 earthquake. Inclusion of field data can
help to enhance the results of fault slip inversion. It derives a maximum
slip of ∼3 m, larger than the published coseismic slip results on
this event, but agreeing with the largest offset of 3.2 m from field
investigation. |
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