DETERMINING HORIZONTAL DISPLACEMENTS BY AERIAL PHOTOS AND OPTICAL SATELLITE IMAGES
GPS and satellite images are used for determining displacements resulting from natural disasters such as earthquake and landslide. Satellite images, which are fast, effective and economic tools for revealing surface deformations and mass movements in such regions have commonly been used.
A method was developed for determining horizontal displacements and mass movements resulting from large earthquakes, glacier flow, landslides, and sand dune migrations. This method, which is named as Co-Registration of Optically Sensed Images and Correlation (COSI-Corr), makes it possible to measure horizontal ground deformation from optical images in earthquake, glacier, landslide, and sand dune regions. In particular, its sub-pixel capabilities allow for accurate mapping of surface ruptures and measurement of co-seismic offsets. Although it has been commonly applied to earthquake, sand dune and glacier regions today, it has not been used sufficiently in landslide regions.
Landslides, which have frequently been encountered in the world, cause loss of live and asset. It is highly important to reveal displacements and mass movements resulting from landslides. This study focuses on studies performed for landslide by COSI-Corr method and obtained results in the study area selected on the North Anatolian Fault Zone.
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