TerraSAR-X STARING SPOTLIGHT MONITORING OF A HIGHWAY BRIDGE IN THE CZECH REPUBLIC (PRELIMINARY RESULTS)

摘要

Highway bridge in the southern part of Prague, Czech republic, is the longest bridge in the Czech republic and it is architectonically unique in Europe. It was built above the valley with confluence of two big rivers, Vltava and Berounka, in an area of frequent floods. On top, there is a five-lane highway with an important, circle-shape crossroad, and both ends of the bridge end up in a tunnel.rnDuring construction, steel was partially replaced by concrete in comparison to the plan, and first cracks arose just after opening of the bridge in September 2010, and are progressively getting bigger.rnWe try to monitor this bridge using the InSAR technique with 22 TerraSAR-X scenes, acquired in the Staring Spotlight mode with a resolution of approximately 0.3 meters during June 2014 - February 2015 (11 days interval).