DAMAGE ASSESSMENT OF INFRASTRUCTURES IN YANGON, MYANMAR BASED ON INSAR ANALYSIS

摘要

This study tries to improve the feasibility of applying satellite imagery to monitoring for infrastructures such as railways, roads and dams. Synthetic Aperture Radar (SAR) provides clear advantages over optical satellite imagery as its acquisition is largely illumination and weather independent. This study focuses Yangon city, Myanmar, where some elevated roads have been built rapidly. We try to analyze the SAR images with interferometric technique and detect subsidence and damages of trucks or roads. Also, demand for water becomes high with the number of population is increases. We expects that the dams which have been built recently can be observed using satellite images which are acquire on a long-term basis. We prepare the reference data in order to discuss the causes of the damages such as decrease of ground water level. The demand of ground water has become higher and higher because high-rise buildings have been built and population is concentrating in Yangon city. We can consider that it probably causes the ground subsidence.