Multi-track Ps Analysis in Shanghai
نویسندگان
چکیده
It is known that several areas in Shanghai town are affected by strong subsidence and many studies are being carried on for monitoring its ground motion. Moreover, the city is growing more and more both in extension and height, and this fact can be connected to the subsidence phenomena. In this work, carried out within the ESA Dragon project, all the available data acquired by ESA satellites ERS and Envisat over Shanghai are jointly exploited in order to get the full story of the ground motion and of the city growth. The results obtained by analyzing an area of about 1,000 km around Shanghai city-center are shown. They are in good agreement with leveling data collected in insitu surveys. Moreover, for the first time a PS analysis has been carried out exploiting jointly data acquired by the satellite flying along parallel tracks.
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