Title :
DInSAR monitoring of land subsidence in Orihuela City, Spain: Comparison with geotechnical data
Author :
Tomás, R. ; Lopez-Sanchez, J.M. ; Delgado, J. ; Vicente, F. ; Cuenca, A. ; Mallorquí, J.J. ; Blanco, P. ; Duque, S.
Author_Institution :
Univ. of Alicante, Alicante, Spain
Abstract :
An advanced DInSAR technique called Coherent Pixels Technique (CPT) has been used to measure the subsidence existing in Orihuela city (Spain) during the period 1993-2001 due to ground water level fall. The estimated subsidence, with values lower than 7 cm, is highly influenced by soil geotechnical conditions like the deformable soil thickness. In addition, the wells location is an important subsidence factor because they are directly related to a decrease of the piezometric level.
Keywords :
geomorphology; groundwater; hydrological techniques; radar interferometry; soil; synthetic aperture radar; AD 1993 to 2001; DInSAR; Orihuela city; Spain; coherent pixels technique; deformable soil thickness; differential interferometric SAR; geotechnical data comparison; groundwater level decrease; piezometric level decrease; soil geotechnical conditions; urban land subsidence monitoring; well location; Cities and towns; Interferometry; Remote monitoring; Rivers; Satellites; Soil measurements; Stress measurement; Synthetic aperture radar; Testing; Thickness measurement; CPT; DInSAR; geotechnics; soft soils; subsidence;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2007. IGARSS 2007. IEEE International
Conference_Location :
Barcelona
Print_ISBN :
978-1-4244-1211-2
Electronic_ISBN :
978-1-4244-1212-9
DOI :
10.1109/IGARSS.2007.4423482
