Multiple geophysical techniques for investigation and monitoring of sobradinho landslide, Brazil
Name:
sustainability-11-06672 (1).pdf
Size:
9.275Mb
Format:
PDF
Description:
Open access article
Authors
Hussain, YawarCardenas-Soto, Martin
Martino, Salvatore
Moreira, Cesar
Borges, Welitom
Hamza, Omar
Prado, Renato
Uagoda, Rogerio
Rodríguez-Rebolledo, Juan
Silva, Rafeal
Martinez-Carvajal, Hernan
Affiliation
University of DerbyUniversity of Brasilia
Clemson University
University of Mexico
ational University of Colombia at Medellin
São Paulo University
Issue Date
2019-11-26
Metadata
Show full item recordAbstract
Geophysical methods have a varying degree of potential for detailed characterization of landslides and their dynamics. In this study, the application of four well-established seismic-based geophysical techniques, namely Ambient Noise Interferometry (ANI), Horizontal to Vertical Spectral Ratio (HVSR), Multi-Channel Analysis of Surface Waves (MASW) and Nanoseismic Monitoring (NM), were considered to examine their suitability for landslide characterization and monitoring the effect of seasonal variation on slope mass. Furthermore, other methods such as Ground Penetrating Radar (GPR) and DC Resistivity through Electrical Resistivity Tomography (ERT) were also used for comparison purpose. The advantages and limitations of these multiple techniques were exemplified by a case study conducted on Sobradinho landslide in Brazil. The study revealed that the geophysical characterization of the landslide using traditional techniques (i.e., GPR, ERT and MASW) were successful in (i) the differentiation between landslide debris and other Quaternary deposits, and (ii) the delineation of the landslide sliding surface. However, the innovative seismic based techniques, particularly ambient noise based (HVSR and ANI) and emitted seismic based (NM), were not very effective for the dynamic monitoring of landslide, which might be attributed to the short-time duration of the data acquisition campaigns. The HVSR was also unsuccessful in landslide site characterization i.e., identification of geometry and sliding surface. In particular, there was no clear evidence of the light seasonal variations, which could have been potentially detected from the physical parameters during the (short-time) ambient noise and microseismic acquisition campaigns. Nevertheless, the experienced integration of these geophysical techniques may provide a promising tool for future applicationsCitation
Hussain, Y., Cardenas-Soto, M., Martino, S., Moreira, C., Borges, W., Hamza, O., Prado, R., Uagoda, R., Rodríguez-Rebolledo, J., Silva, R. and Martinez-Carvajal, H., (2019). 'Multiple geophysical techniques for investigation and monitoring of sobradinho Landslide, Brazil'. Sustainability, 11(23), pp. 1-18. DOI: 10.3390/su11236672Publisher
MDPI AGJournal
SustainabilityDOI
10.3390/su11236672Additional Links
https://www.mdpi.com/2071-1050/11/23/6672/htmType
ArticleLanguage
enISSN
2071-1050ae974a485f413a2113503eed53cd6c53
10.3390/su11236672