Application of Space Geodetic Techniques and GIS for Crustal Deformation Monitoring in Turkey
Abstract
There are number of geodetic techniques for detecting crustal movements. Space-based InSAR technique measures the phase change between two phase measurements of the same ground pixel of the Earth's surface and provides a method to determine crustal deformation. The results are verified by ground-based data obtained from GPS and other seismological studies. The North Anatolian Fault (NAF), particularly western segment of it, has been investigated over two decades by means of GPS technique. It is one of the most seismically active structures in the eastern Mediterranean with a slip rate of 22 mm/year. In this study, current displacement rates obtained from sparse micro-geodetic networks at western part of NAF are presented and then we investigate the potential of InSAR to monitor crustal movements at our study regions. GPS results validate the information coming from InSAR observations. On the other hand,we have some errors due to discrepancy between the GPS and interferometric observations since they are not defining crustal deformation at the same time intervals. After quality control and processing, all datasets integrated into GIS for mapping and analysis.
- Publication:
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AGU Fall Meeting Abstracts
- Pub Date:
- December 2011
- Bibcode:
- 2011AGUFM.G11A0842O
- Keywords:
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- 1209 GEODESY AND GRAVITY / Tectonic deformation;
- 1243 GEODESY AND GRAVITY / Space geodetic surveys