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

fYear

2007

fDate

23-28 July 2007

Firstpage

3027

Lastpage

3030

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/IGARSS.2007.4423482

Filename

4423482