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Geophysical imaging of buried human remains in simulated mass and single graves: Experiment design and results from pre-burial to six months after burial

Doro, Kennedy O. ; Kolapkar, Amar M. ; Bank, Carl-Georg ; Wescott, Daniel J. ; Mickleburgh, Hayley L.

Forensic science international, 2022-06, Vol.335, p.111289-111289, Article 111289 [Periódico revisado por pares]

Ireland: Elsevier B.V

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Título:
Geophysical imaging of buried human remains in simulated mass and single graves: Experiment design and results from pre-burial to six months after burial
Autor: Doro, Kennedy O. ; Kolapkar, Amar M. ; Bank, Carl-Georg ; Wescott, Daniel J. ; Mickleburgh, Hayley L.
Assuntos: Anomalies ; Archaeology ; Arkeologi ; Cadavers ; Criminal investigations ; Decomposition ; Design of experiments ; Electrical conductivity ; Electrical resistivity ; Environmental monitoring ; Excavation ; Forensic ; Forensic anthropology ; forensic human remains ; Forensic sciences ; Geoelectricity ; Geology ; Geophysical methods ; Geophysics ; Ground penetrating radar ; Human remains ; Hyperbolas ; Individual graves ; Law ; Mass grave ; Medicin ; Medicine ; Moisture effects ; Murders & murder attempts ; Physical properties ; Reflectors ; Rättsvetenskap ; Soil analysis ; Soil moisture ; Soil profiles ; Soil properties ; Soil temperature ; Tomography
É parte de: Forensic science international, 2022-06, Vol.335, p.111289-111289, Article 111289
Notas: ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
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Descrição: In this study, we present an experiment design and assess the capability of multiple geophysical techniques to image buried human remains in mass and individual graves using human cadavers willingly donated for scientific research. The study is part of a novel, interdisciplinary mass grave experiment established in May 2021 which consists of a mass grave with 6 human remains, 3 individual graves and 2 empty control graves dug to the same size as the mass grave and individual graves. Prior to establishing the graves, we conducted background measurements of electrical resistivity tomography (ERT), electromagnetics (EM), and ground penetrating radar (GPR) while soil profiles were analyzed in situ after excavating the graves. All graves were also instrumented with soil sensors for monitoring temporal changes in soil moisture, temperature, and electrical conductivity in situ. Measurements of ERT, EM and GPR were repeated 3, 37, 71 and 185 days after burial with further repeated measurements planned for another twelve months. ERT results show an initial increase in resistivity in all graves including the control graves at 3 days after burial and a continuous decrease thereafter in the mass and individual graves with the strongest decrease in the mass grave. Conductivity distribution from the EM shows a similar trend to the ERT with an initial decrease in the first 3 days after burial. Distortion in linear reflectors, presence of small hyperbolas and isolated strong amplitude reflectors in the GPR profiles across the graves is associated with known locations of the graves. These initial results validate the capability of geoelectrical methods in detecting anomalies associated with disturbed ground and human decay while GPR though show some success is limited by the geology of the site. •Assessment of geophysical methods for imaging graves with buried human remains.•Novel experiment design of mass and individual graves with willingly donated human cadavers.•GPR, ERT and EM measurements from pre-burial to 6 months post-burial are presented.•Resistivity increases immediately after burial and decreases afterwards with increasing time after burial.•GPR is limited by presence of rock fragments distributed within the soil.
Editor: Ireland: Elsevier B.V
Idioma: Inglês

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Geophysical imaging of buried human remains in simulated mass and single graves: Experiment design and results from pre-burial to six months after burial

Doro, Kennedy O. ; Kolapkar, Amar M. ; Bank, Carl-Georg ; Wescott, Daniel J. ; Mickleburgh, Hayley L.

Ireland: Elsevier B.V

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