In: Wagner W., Székely, B. (eds.): ISPRS TC VII Symposium - 100 Years ISPRS, Vienna, Austria, July 5-7, 2010, IAPRS, Vol. XXXVIII, Part 7B 
Figure 3. Geocoded deformation velocity map superimposed over a Google Earth image. The red colours represent subsidence areas. 
The map covers the construction area of the zoo of Barcelona. Significant portions of this area suffer subsidence up to -25 mm/yr. 
The high sampling density achieved over some of the infrastructures can be observed. 
ACKNOWLEDGEMENTS 
This work has been mainly funded by the Spanish Ministry of 
Science and Innovation through the project LIRA (ref. 
LIRA_MEP_2009_l-0). Six of the 28 images come from the 
Project №. LAN0634, “Evaluation of DEM derived from 
TerraSAR-X data”, of the TerraSAR-X Science Service 
Program. 
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