InSAR decorrelation to assess and prevent volcanic risk
نویسندگان
چکیده
منابع مشابه
Dramatic volcanic instability revealed by InSAR
Interferometric synthetic aperture radar (InSAR) was used to measure ground deformation during explosive eruptions on 27 and 28 May 2010 at Pacaya volcano, Guatemala. Interferograms produced using spaceborne and airborne synthetic aperture radar data reveal ~3 m of along-slope movement of the southwest sector of the edifice during these eruptions. This is the largest measured slope instability ...
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Interferometric synthetic aperture radar (InSAR) is now routinely used to generate topographic data and to study geophysical phenomena, such as crustal deformation, ice motion and structure, and vegetation canopy depths [1]. In this study, we show that ionospheric disturbances can distort InSAR phase and correlation maps, and, further, that accurate image coregistration can compensate for ionos...
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Our research has shown that interferometric SAR techniques can be used to monitor deformation at landslides and volcanoes under specific conditions. Special filtered interferograms are being used to reduce speckle and minimize errors created by vegetation. InSAR images were used to monitor current post slide motion along existing fault lines at the Frank Slide a 30 x 10 m rock avalanche, in the...
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ژورنال
عنوان ژورنال: European Journal of Remote Sensing
سال: 2014
ISSN: 2279-7254
DOI: 10.5721/eujrs20144730