Soil moisture estimation via radio wave reflection method using ground penetrating radar

2015 ◽  
Author(s):  
R. Mardeni ◽  
N. N. Ahmad ◽  
C. W. Yap
Keyword(s):  
Soil Moisture ◽  
Radio Wave ◽  
Ground Penetrating Radar ◽  
Wave Reflection ◽  
Reflection Method ◽  
Ground Penetrating ◽  
Moisture Estimation

scholarly journals Soil moisture estimation using tomographic ground penetrating radar in a MCMC–Bayesian framework

2018 ◽  
Vol 32 (8) ◽  
pp. 2213-2231
Author(s):  
Jie Bao ◽  
Zhangshuan Hou ◽  
Jaideep Ray ◽  
Maoyi Huang ◽  
Laura Swiler ◽  
...  
Keyword(s):  
Soil Moisture ◽  
Ground Penetrating Radar ◽  
Bayesian Framework ◽  
Ground Penetrating ◽  
Moisture Estimation

scholarly journals An Examination of Soil Moisture Estimation Using Ground Penetrating Radar in Desert Steppe

Water ◽  
2017 ◽  
Vol 9 (7) ◽  
pp. 521 ◽  
Author(s):  
Yizhu Lu ◽  
Wenlong Song ◽  
Jingxuan Lu ◽  
Xuefeng Wang ◽  
Yanan Tan
Keyword(s):  
Soil Moisture ◽  
Ground Penetrating Radar ◽  
Desert Steppe ◽  
Ground Penetrating ◽  
Moisture Estimation

Non-invasive estimation of root zone soil moisture from coarse root reflections in ground-penetrating radar images

2019 ◽  
Vol 436 (1-2) ◽  
pp. 623-639 ◽  
Author(s):  
Xinbo Liu ◽  
Xihong Cui ◽  
Li Guo ◽  
Jin Chen ◽  
Wentao Li ◽  
...  
Keyword(s):  
Soil Moisture ◽  
Ground Penetrating Radar ◽  
Root Zone ◽  
Coarse Root ◽  
Radar Images ◽  
Non Invasive ◽  
Ground Penetrating

scholarly journals Application of Ground-Penetrating Radar and a Combined Penetrometer–Moisture Probe for Evaluating Spatial Distribution of Soil Moisture and Soil Hardness in Coastal and Inland Windbreaks

Geosciences ◽  
2020 ◽  
Vol 10 (6) ◽  
pp. 238
Author(s):  
Kenta Iwasaki ◽  
Makoto Tamura ◽  
Hirokazu Sato ◽  
Kazuhiko Masaka ◽  
Daisuke Oka ◽  
...  
Keyword(s):  
Spatial Distribution ◽  
Soil Moisture ◽  
Water Content ◽  
Soil Water ◽  
Soil Water Content ◽  
Ground Penetrating Radar ◽  
Soil Compaction ◽  
Soil Moisture Condition ◽  
Soil Hardness ◽  
Ground Penetrating

The development of a method to easily investigate the spatial distribution of soil moisture and soil hardness in tree windbreaks is necessary because these windbreaks often decline due to inappropriate soil moisture condition and soil compaction. This research examined the applicability of ground-penetrating radar (GPR) and a combined penetrometer–moisture probe (CPMP) for evaluating the spatial distribution of soil moisture and soil hardness in four windbreaks with different soil characteristics. A GPR-reflecting interface was observed at a less permeable layer in a coastal windbreak and at a depth affected by soil compaction in an inland windbreak with andosol. The spatial distribution of the groundwater table could also be evaluated by examining the attenuation of GPR reflection in a coastal windbreak. In contrast, GPR was not applicable in an inland windbreak with peat because of high soil water content near the soil surface. The CPMP could detect vertical distributions of soil hardness and soil water content regardless of soil type. The CPMP was useful for interpreting GPR profiles, and GPR was useful for interpolating the information about the horizontal distribution of soil moisture and soil hardness between survey points made with the CPMP. Thus, the combination of GPR and a CPMP is ideal for examining the two-dimensional spatial distribution of soil moisture and soil hardness at windbreaks with soils for which both methods are applicable.

scholarly journals Multi-channel ground-penetrating radar to explore spatial variations in thaw depth and moisture content in the active layer of a permafrost site

2010 ◽  
Vol 4 (3) ◽  
pp. 269-283 ◽  
Author(s):  
U. Wollschläger ◽  
H. Gerhards ◽  
Q. Yu ◽  
K. Roth
Keyword(s):  
Soil Moisture ◽  
Moisture Content ◽  
Active Layer ◽  
Ground Penetrating Radar ◽  
Soil Moisture Content ◽  
Late Summer ◽  
Bare Soil ◽  
Thaw Depth ◽  
Ground Penetrating ◽  
Gravel Road

Abstract. Multi-channel ground-penetrating radar (GPR) was applied at a permafrost site on the Tibetan Plateau to investigate the influence of surface properties and soil texture on the late-summer thaw depth and average soil moisture content of the active layer. Measurements were conducted on an approximately 85 × 60 m2 sized area with surface and soil textural properties that ranged from medium to coarse textured bare soil to finer textured, sparsely vegetated areas covered with fine, wind blown sand, and it included the bed of a gravel road. The survey allowed a clear differentiation of the various units. It showed (i) a shallow thaw depth and low average soil moisture content below the sand-covered, vegetated area, (ii) an intermediate thaw depth and high average soil moisture content along the gravel road, and (iii) an intermediate to deep thaw depth and low to intermediate average soil moisture content in the bare soil terrain. From our measurements, we found hypotheses for the permafrost processes at this site leading to the observed late-summer thaw depth and soil moisture conditions. The study clearly indicates the complicated interactions between surface and subsurface state variables and processes in this environment. Multi-channel GPR is an operational technology to efficiently study such a system at scales varying from a few meters to a few kilometers.

scholarly journals Applications of ground penetrating radar in geotechnical investigation

2021 ◽  
Author(s):  
Damian Moodie
Keyword(s):  
Radio Wave ◽  
Ground Penetrating Radar ◽  
Soil Profile ◽  
Geotechnical Investigation ◽  
Step Size ◽  
Geophysical Technique ◽  
Ground Penetrating ◽  
Non Destructive ◽  
Fair Degree

There are clearly risks and a fair degree of uncertainties involved in geotechnical investigation for the reason that only limited boreholes can be used in projects, due to budget restraints. These risks are further increased or decreased subject to the geotechnical engineers’ experiences and judgments. Ground Penetrating Radar (GPR) is a geophysical technique that provides continuous non-destructive soil profiling from the surface or from inside a borehole by sending, receiving and averaging multiple radio wave pulses into the subsurface at centimeter increments (cm) scale normally ranging between 0.5cm to 1cm step size. This project focuses on the principles, procedures, applications and limitations of GPR use in geotechnical exploration. To evaluate its potentials for reducing risk and uncertainties associated with soil profile presumptions between boreholes, also to evaluate if GPR can provide objective quantifiable data that can be understood by any level of geotechnical engineers.

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