Use of PSInSAR data to map highly compressible soil layers
Del Ventisette, C. (Università di Firenze. Dipartimento di Scienze della Terra)
Solari, L. A (Università di Firenze. Dipartimento di Scienze della Terra)
Raspini, F. (Università di Firenze. Dipartimento di Scienze della Terra)
Ciampalini, A. (Università di Firenze. Dipartimento di Scienze della Terra)
Di Traglia, F. (Università di Firenze. Dipartimento di Scienze della Terra)
Moscatelli, M. (CNR-IGAG (Roma, Itàlia). Institute of Environmental Geology and Geoengineering)
Pagliaroli, A. (CNR-IGAG (Roma, Itàlia). Institute of Environmental Geology and Geoengineering)
Moretti, S. (Università di Firenze. Dipartimento di Scienze della Terra)

Data:	2015
Resum:	A new approach to the use of Persistent Scatterers (PS) Interferometry data in the reconstruction of the extension of compressible geological bodies is presented. The methodology was applied in the test area of the Tiber River delta (Italy), characterized by the presence of two large marshy zones, known as the Maccarese and Ostia Antica ponds. PSInSAR™ data, derived from ERS1/2, ENVISAT and RADARSAT-1 images, and spanning a time interval between 1992 and 2006 were used to verify the possibility to reconstruct the spatial distribution of the peat levels inside the Maccarese and Ostia Antica ponds. Borehole information was analyzed to calibrate the InSAR data and the deformation rates were used to hypothesize the presence of a thick compressible layer where geological information is lacking. Variations in deformation rates registered by the single PS were assumed to be representative of a variation in the stratigraphic asset. The obtained results demonstrate that this approach could be satisfactorily used to investigate wide areas in a short time, reducing the number of boreholes to drill, and it could be a complementary technique to obtain information about the 2D geometry of specific geological levels.
Drets:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, sempre i quan aquestes es distribueixin sota la mateixa llicència que regula l'obra original i es reconegui l'autoria.
Llengua:	Anglès
Document:	Article ; recerca ; Versió publicada
Matèria:	InSAR ; PS analysis ; Surface deformation analysis ; 2D stratigraphic reconstruction ; Tiber Delta ; Peat ; Insar
Publicat a:	Geologica acta, Vol. 13 Núm. 4 (December 2015) , p. 309-323 (Articles) , ISSN 1696-5728

Adreça alternativa: https://raco.cat/index.php/GeologicaActa/article/view/302721
Adreça alternativa: https://revistes.ub.edu/index.php/GEOACTA/article/view/GeologicaActa2015.13.4.4
DOI: 10.1344/GeologicaActa2015.13.4.4

17 p, 6.4 MB

El registre apareix a les col·leccions:
Articles > Articles publicats > Geologica acta
Articles > Articles de recerca