Uwe Soergel - Academia.edu (original) (raw)

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Papers by Uwe Soergel

Research paper thumbnail of Post-seismic infrastructure damage assessment using high-resolution SAR satellite data

The Wenchuan Earthquake on May 12, 2008, devastated a vast area in Sichuan, China. The swift resc... more The Wenchuan Earthquake on May 12, 2008, devastated a vast area in Sichuan, China. The swift rescue and disaster management measures of the Chinese government have been supported by radar remote sensing from the very beginning. The new high-resolution synthetic aperture radar (SAR) satellites, like COSMO-SkyMed and TerraSAR-X, have been used for damage assessment and rapid mapping. Unfortunately, only one stripmap image from the area was acquired by COSMO-SkyMed before the earthquake, allowing therefore the generation of only one co-seismic interferogram over a limited area to evaluate the motion of the terrain. Thorough analysis of the acquired data can reveal the status of buildings and infrastructure using only post-seismic high-resolution images. In this paper, damaged bridges and dams will be analyzed and strategies for damage detection in SAR images will be discussed. Typical signatures of damaged bridges will be shown and long-time monitoring of dams using SAR is demonstrated.

Research paper thumbnail of Post-seismic infrastructure damage assessment using high-resolution SAR satellite data

The Wenchuan Earthquake on May 12, 2008, devastated a vast area in Sichuan, China. The swift resc... more The Wenchuan Earthquake on May 12, 2008, devastated a vast area in Sichuan, China. The swift rescue and disaster management measures of the Chinese government have been supported by radar remote sensing from the very beginning. The new high-resolution synthetic aperture radar (SAR) satellites, like COSMO-SkyMed and TerraSAR-X, have been used for damage assessment and rapid mapping. Unfortunately, only one stripmap image from the area was acquired by COSMO-SkyMed before the earthquake, allowing therefore the generation of only one co-seismic interferogram over a limited area to evaluate the motion of the terrain. Thorough analysis of the acquired data can reveal the status of buildings and infrastructure using only post-seismic high-resolution images. In this paper, damaged bridges and dams will be analyzed and strategies for damage detection in SAR images will be discussed. Typical signatures of damaged bridges will be shown and long-time monitoring of dams using SAR is demonstrated.

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