Effects of structural and compositional factors on soil electromagnetic properties

Liu, N.; Mitchell, James K.

doi:10.1080/17486020903174295

Cited by 4 publications

(5 citation statements)

References 23 publications

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“…Explicit dependence of the dielectric constant on the mineralogy, however, could not be identified since it was masked by the dry density (Salat and Junge ). Moreover, the effect of clay mineralogy and clay percentage on the dielectric dispersion of soil was found to be crucial in frequencies between 50 MHz to 1 GHz (Liu and Mitchell ).…”

Section: Dielectric Properties Of Soilsmentioning

confidence: 99%

“…Perhaps, the most widely used empirical correlation is known as the Topp equation, where the apparent dielectric constant of the soil is related to its volumetric water content (Topp et al 1980). Topp et al (1980) suggested that the apparent dielectric constant κ a for low loss and nearly homogeneous materi- soil was found to be crucial in frequencies between 50 MHz to 1 GHz (Liu and Mitchell 2009).…”

Section: Dielectric Properties Of Soilsmentioning

confidence: 99%

“…The frequency range used in this work (i.e., 200 MHz to 6 GHz) partially covers the bound water polarisation region. Moreover, in addition to water, soil type is considered an influential parameter on dispersion (Liu and Mitchell ). These concepts will be further utilised in the results interpretation section.…”

Section: Dielectric Properties Of Soilsmentioning

confidence: 99%

“…Such nonengineering applications include for instance archaeological studies (Davis and Annan 1989;Sternberg and McGill 1995;Loewer, Wagner, and Igel 2013;Khakiev et al 2014). The dielectric properties of soil (influenced by soil water content, salinity, density and mineralogy) and the operational frequency of geophysical surveys play a crucial role in electromagnetic (EM) wave-based geophysical investigations, such as ground-penetrating radar (GPR), EM prospections, and light detection and ranging (LIDAR) (Topp, Davis, and Annan 1980;Roth et al 1990;Drnevich et al 2001;Liu and Mitchell 2009;Lauer et al 2010;Wagner et al 2011;Schön 2015). Hence, having information (and building a database) about the dielectric properties of soils over a range of water contents and frequencies may aid future geophysical investigations and modelling.…”

Section: Introductionmentioning

confidence: 99%

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Physical characterisation of soils recovered from the ANZAC battlefield

Orangi

Narsilio

2016

Near Surface Geophysics

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As part of a unique tri‐nation study to commemorate the centenary of the iconic First World War ANZAC battlefield, this paper summarises the results of a laboratory experimental investigation of some geotechnical and geophysical characteristics of soil recovered from this field in Gallipoli, Turkey. The geophysical characterisation of these samples comprises the determination of the dielectric properties, namely real, imaginary and dielectric dispersion, over a frequency band between 200 MHz and 6 GHz. This characterisation is performed at the samples’ in situ state as well as in a controlled range of water content from oven‐dried to saturation. Specific frequencies pertaining to certain in situ geophysical applications and satellite surveys have been targeted as reference frequencies to study the dielectric data. Moreover, attenuation coefficients related to ground‐penetrating radar applications are also estimated at 200 MHz for a range of water contents. Microstructure and mineralogy were examined by environmental scanning electron microscopy and X‐ray diffraction techniques, respectively. Given the historical and archaeological significance of the ANZAC battlefield, these results can be used for future feasibility studies, planning, and result interpretation of geophysical investigations, including choosing the most appropriate time of the year and geophysical prospection tools, in this restricted‐access study area.

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Section: Dielectric Properties Of Soilsmentioning

confidence: 99%

Section: Dielectric Properties Of Soilsmentioning

confidence: 99%

Section: Dielectric Properties Of Soilsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Physical characterisation of soils recovered from the ANZAC battlefield

Orangi

Narsilio

2016

Near Surface Geophysics

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show abstract

“…Dielectric measurements are useful to estimate water and oil content within porous media (Liu and Mitchell, 2009;Persson and Haridi, 2003;Topp et al, 1980). The presence of liquid organic contaminants in soils can be identified due to their different dielectric, physical and chemical properties with respect to pore water (Ajo-Franklin et al, 2006;Moroizumi and Sasaki, 2008;Son et al, 2009).…”

Section: Introductionmentioning

confidence: 99%