探地雷达波振幅与土壤含水量关系的数值模拟

doi:10.3969/j.issn.0255-8297.2015.01.005

Abstract

Abstract: Water content in soil can be derived from the relation between changes in ground penetrating radar signals and the soil’s dielectric constant. Using the finite difference time domain (FDTD) method, a model of layered soil is established to simulate ground penetrating radar electromagnetic waves in the soil. The transmission characteristics of layered soil are analyzed using the model. The results indicate that a functional relation exists between the soil dielectric constant and the amplitude, i.e., the wave amplitude decreases with the increased electric constant. With an indoor soil model, the obtained relationship
is verified: the computed water content agrees with the wet sensor data.

Key words: water content in soil, ground penetrating radar, numerical simulation

CLC Number:

LI Hui-jun1,2,3, ZHONG Ruo-fei1,2,3. Numerical Study on the Relationship between Amplitudes of Ground Penetrating Radar Wave and Water Content in Soil[J]. Journal of Applied Sciences, 2015, 33(1): 41-49.

References

[1]      PARIVA D, ASHI Q, RUCHI B. A review of the methods available for estimating soil moisture and its implications for water resource management [J]. Journal of Hydrology, 2012, 458: 110-117.
[2]      WIGNERON J P, CALVET J C, PELLARIN T. Retrieving near-surface soil moisture from microwave radiometric observations: current status and future plans [J]. Remote Sensing of Environment, 2003, 85: 489-506.
[3]      JACKSON T J, SCHMUGGE J, ENGMAN E T . Remote sensing applications to hydrology: Soil moisture [J]. Hydrol. Sci. J,1996, 41: 517−530.
[4]      HUIIMAN J A , SPERL C, BOUTEN W，VERSTRATEN J M . Soil water content measurements at different scales accuracy of time domain reflectometry and ground-penetrating radar[J]. Journal of Hydrology, 2001, 245: 48-58.
[5]      HUISMAN J A , SNEPVANGERS J J J C , BOUTEN W， HEUVELINK, G B M. Mapping spatial variation in surface soil water content comparison of ground-penetrating radar and time domain re?ectometry[J]. Journal of Hydrology, 2002, 269: 194-207.
[6]      ALUMBAUGH D, CHANG PY. Estimating moisture contents in the vadose zone using cross-borehole ground penetratin Radar: A study of accuracy and repeatability[J]. Water Resources Research, 2002, 12: 45_1-45_2.
[7]      GALAGEDARA L W, PARKIN G W, Redman J D. Field studies of the GPR ground wave method for estimating soil water content during irrigation and drainage[J]. Journal of Hydrology, 2005, 301: 182-197.
[8]      LUNT I A, HUBBARD S S, RUBIN Y. Soil moisture content estimation using ground-penetrating radar reflection data[J]. Journal of Hydrology, 2005, 307: 254-269.
[9]      APRIL Y，RICHARD G Z, EDWARD A M. Estimating water content in an active landfill with the aid of GPR[J]. Waste Management, 2013,33: 2015-2028.
[10] MINET J, WAHYUDI A, BOGAERT P. Mapping shallow soil moisture profiles at the field scale using full-waveform inversion of ground penetrating radar data[J], Geoderma, 2011, 161: 225-237
[11] BENEDETTO A . Water content evaluation in unsaturated soil using GPR signal analysis in the frequency domain[J]. Journal of Applied Geophysics, 2010, 71: 26-35.
[12] NICOLAESCU I, van GENDEREN P. Performances of a stepped-frequency continuous-wave ground penetrating Radar[J]. Journal of Applied Geophysics, 2012, 82:59-67.
[13] SCHMALZ B, LENNARTZ B, WACHSMUTH D. Analyses of soil water content variations and GPR attribute distributions [J]. Journal of Hydrology, 2002, 267:217-226.
[14] CHANZY A, TARUSSOV A, JUDGE A，BONN F. Soil water content determination using a digital ground-penetrating Radar[J]. Soil Sci. Soc. Am. J., 1996, 60: 1318-1326.
[15] Yee K S. Numerical solution of initial boundary walue problems involving Maxwell’s eqation in isotropic media [J]. IEEE Trans Antennas Propagat, 1966,14(3):302-307.
[16] TOPP G C, DAVIS J L, Annan A P. Electromagnetic determination of soil water content: Measurements in coaxial transmissions lines [J]. Water Resource Research, 1980, 16: 574-582.
[17] 朱安宁, 吉丽青, 张佳宝. 基于探地雷达的土壤水分测定方法研究进展[J]. 中国生态农业学报, 2009, 17(5): 1039-1044.
ZHU A N, JI L Q, ZHANG J B. Research progress on soil moisture measurement via ground-penetrating radar[J]. Chinese Journal of Eco-Agriculture, 2009, 17(5): 1039-1044.
[18] DEAN G. Ground-penetrating radar simulation in engineering and archaeology[J]. GEOPHYSICS, 1994, 2(59): 224-232.
[19] ROBINSON D A, JONES S B, Wraith J M. A review of advances in dielectric and electric conductivity measurements using time domain reflectometry[J]. Vadose Zone J., 2003, 2: 444-475
[20] 赵春江, 王成, 侯瑞峰. 土壤三参数测量方法 [J]， 2007，现代科学仪器， 5: 100-104.
ZHAO C J, WANG C, HOU R F. Preliminary study of the three soil parameters measurement methods[J]. Modern Scientific Instruments, 2007. 5:100-104.

Numerical Study on the Relationship between Amplitudes of Ground Penetrating Radar Wave and Water Content in Soil

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 7

Recommended Articles

Metrics

Comments

[1]	ZHOU Bei;LIAO Bin;ZHU Shou-zheng. Parameters' Impact on Performance of Antenna in Planar Microstrip Spiral ICP Source [J]. Journal of Applied Sciences, 2007, 25(4): 359-359 .
[2]	REN Yi-min, ZHANG Xu, SHA Gao-yuan. The Simulation Research on the Effectiveness of the Windproof Walls Built in Open-Air depots for Building Materials in Shanghai Areas [J]. Journal of Applied Sciences, 2004, 22(3): 402-406.
[3]	XIE Feng, LIU Zheng-shi, YANG Hai-dong. The Numerical Simulation of Friction Status on the Rake Face and Flank Face of Cutting Tools [J]. Journal of Applied Sciences, 2004, 22(2): 223-227.
[4]	WANG Qun, NI Hong-wei, XU Yi-gang. A Study on Mine Detection and Identification Through Pattern Recognition with the Help of Multi-Features [J]. Journal of Applied Sciences, 2003, 21(1): 53-58.
[5]	CAI Zhong-yi, LI Ming-zhe, YAN Qing-guang. The Theory and Application of Multi-point Flexible Forming for Sheet Metal [J]. Journal of Applied Sciences, 2002, 20(2): 202-206.
[6]	HUAI Xiu-lan, LIU Deng-ying, MENG Qun. Numerical Simulation of Rapid Transient Mass Transfer [J]. Journal of Applied Sciences, 2001, 19(4): 345-348.
[7]	ZHAO Jia-bao, SHENG Zhao-han, WEI Tong-li. MR-CGS: A Minimal Residual CGS Method and Its Application in DDM [J]. Journal of Applied Sciences, 2000, 18(2): 143-147.