Subsidence monitoring in Seville (S Spain) using multi-temporal InSAR
Antonio M. Ruiz-Armenteros (Universidad de Jaén)
Ana Ruiz-Constán (Universidad de Granada)
Francisco Lamas-Fernández (Universidad de Granada)
Jesús Galindo-Zaldívar (Investigaciones Científicas-Universidad de Granada)
Joaquim J. Sousa (Institute for Systems and Computer Engineering, Technology and Science (INESC TEC))
Carlos Sanz De Galdeano (Investigaciones Científicas-Universidad de Granada)
J. Manuel Delgado (Progressive Systems Srl)
Antonio Pedrera-Parias (Instituto Geológico y Minero de España)
Sergio Martos-Rosillo (Instituto Geológico y Minero de España)
Antonio J. Gil (Universidad de Jaén)
Miguel Caro-Cuenca (TNO)
Ramon F. Hanssen (TU Delft - Mathematical Geodesy and Positioning)
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Abstract
Seville, with a metropolitan population of about 1.5 million, is the capital and largest city of Andalusia (S Spain). It is the 30th most populous municipality in the European Union and contains three UNESCO World Heritage Sites. The Seville harbour, located about 80 km from the Atlantic Ocean, is the only river port in Spain. The city is located on the plain of the Guadalquivir River. Using Multi-Temporal InSAR with ERS-1/2 and Envisat data a subsidence behavior is detected in the period 1992-2010. The geometry of the subsiding areas suggests that it should be conditioned by the fluvial dynamics of the Guadalquivir River and its tributaries. Facies distribution along the fluvial system (paleochannels, flood plains.), with different grain size and matrix proportion, may explain the relative subsidence between the different sectors.
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