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dc.contributor.authorYin, Keen
dc.contributor.authorTong, Huanhuanen
dc.contributor.authorGiannis, Apostolosen
dc.contributor.authorWang, Jing-Yuanen
dc.contributor.authorChang, Victor Wei-Chungen
dc.identifier31 p.en
dc.identifier.citationYin, K., Tong, H., Giannis, A., Wang, J.-Y., & Chang, V. W.-C. (2017). Multiple geophysical surveys for old landfill monitoring in Singapore. Environmental Monitoring and Assessment, 189, 20-.en
dc.description.abstractOne-dimensional boring presents limitations on mapping the refuse profile in old landfills owning to waste heterogeneity. Electrical imaging (EI) and multiple-analysis of surface wave (MASW) were hereby deployed at an old dumping ground in Singapore to explore the subsurface in relation to geotechnical analysis. MASW estimated the refuse boundary with a higher precision as compared to EI, due to its endurance for moisture variation. EI and MASW transection profiles suggested spots of interest, e.g., refuse pockets and leachate mounds. 3D inversion of EI and MASW data further illustrated the transformation dynamics derived by natural attenuation, for instance the preferential infiltration pathway. Comparison of geophysical surveys at different years uncovered the subterranean landfill conditions, indicating strong impacts induced by aging, precipitation, and settlement. This study may shed light on a characterization framework of old landfills via combined geophysical models, thriving landfill knowledge with a higher creditability.en
dc.description.sponsorshipNRF (Natl Research Foundation, S’pore)en
dc.relation.ispartofseriesEnvironmental Monitoring and Assessmenten
dc.rights© 2016 Springer International Publishing Switzerland. This is the author created version of a work that has been peer reviewed and accepted for publication by Environmental Monitoring and Assessment, Springer International Publishing Switzerland. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [].en
dc.subjectGeophysical methoden
dc.titleMultiple geophysical surveys for old landfill monitoring in Singaporeen
dc.typeJournal Articleen
dc.contributor.schoolSchool of Civil and Environmental Engineeringen
dc.contributor.researchNanyang Environment and Water Research Instituteen
dc.contributor.researchResidues and Resource Reclamation Centreen
dc.description.versionAccepted Versionen
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