Abstract
We investigate decreasing of interferometric correlation of SAR data caused by building damages in urban area. We analyze JERS-1 SAR data pairs straddling the occurrence of the 1995 Hyogoken-nanbu earthquake. The distribution patterns of the pixels for which indicated interferometric decorrelation correspond well with the building damaged area reported by the ground survey. The degree of decorrelation shows obvious correlation with the damaged building ratio on the area in each blocks and measured seismic intensity from strong motion data. The result of this study indicates a fact that the building damage causes the interferometric decorrelation. We also try to extract the damaged urban area by the 2001 Gujrat (western India) earthquake using Radarsat data. For practical use of interferometric decorrelation to detect the urban damage, effect of building type and urban concentration should be examined. These results show the applicability for interferometric analysis of SAR data to the urban disaster management.
| Original language | English |
|---|---|
| Pages | 2051-2053 |
| Number of pages | 3 |
| Publication status | Published - 2002 Jan 1 |
| Externally published | Yes |
| Event | 2002 IEEE International Geoscience and Remote Sensing Symposium (IGARSS 2002) - Toronto, Ont., Canada Duration: 2002 Jun 24 → 2002 Jun 28 |
Other
| Other | 2002 IEEE International Geoscience and Remote Sensing Symposium (IGARSS 2002) |
|---|---|
| Country/Territory | Canada |
| City | Toronto, Ont. |
| Period | 02/6/24 → 02/6/28 |
ASJC Scopus subject areas
- Computer Science Applications
- Earth and Planetary Sciences(all)
