论文信息 - A full exploitation of the enhanced SBAS-DInSAR approach in volcanic and seismogenic areas

A full exploitation of the enhanced SBAS-DInSAR approach in volcanic and seismogenic areas

We present an enhanced version of the SBAS-DInSAR processing chain, which complements the conventional SBAS codes with a simple noise-filtering procedure that allows us to mitigate noise artifacts affecting the sequence of multi-look (multi-temporal) small baseline interferograms used within the SBAS inversion. We demonstrate that the use of such a noise-filtering algorithm permits to significantly improve the quality of the mean deformation velocity maps and displacement time-series retrieved via the SBAS-DInSAR processing chain, thus promoting more detailed analyses of the detected deformation phenomena. The overall effectiveness of the enhanced SBAS-DInSAR approach is confirmed by the experimental results achieved by applying the proposed method to two sets of SAR data collected by the ERS-1/2 and ENVISAT sensors over the Mt. Etna volcano (Southern Italy) and Yellowstone caldera (Wyoming, U.S.).

[1] P. Rosen,et al. SYNTHETIC APERTURE RADAR INTERFEROMETRY TO MEASURE EARTH'S SURFACE TOPOGRAPHY AND ITS DEFORMATION , 2000 .

[2] Gianfranco Fornaro,et al. A new algorithm for surface deformation monitoring based on small baseline differential SAR interferograms , 2002, IEEE Trans. Geosci. Remote. Sens..

[3] K. Feigl,et al. Radar interferometry and its application to changes in the Earth's surface , 1998 .

[4] Antonio Pepe,et al. On the Extension of the Minimum Cost Flow Algorithm for Phase Unwrapping of Multitemporal Differential SAR Interferograms , 2006, IEEE Transactions on Geoscience and Remote Sensing.

[5] Antonio Pepe,et al. A simple solution to mitigate noise effects in time-redundant sequences of small baseline multi-look DInSAR interferograms , 2013 .

[6] Howard A. Zebker,et al. Decorrelation in interferometric radar echoes , 1992, IEEE Trans. Geosci. Remote. Sens..

[7] Antonio Pepe,et al. A new SBAS-DInSAR approach based on a redundant set of small baseline interferograms , 2012, 2012 IEEE International Geoscience and Remote Sensing Symposium.