| 探地雷达方法测量近地表含水量模拟研究 |
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| 引用本文： | 王春辉,刘四新,黄玲.探地雷达方法测量近地表含水量模拟研究[J].地球物理学进展,2009,24(2):737-741. |
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| 作者姓名： | 王春辉 刘四新 黄玲 |
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| 作者单位： | 1. 中国地质调查局水文地质环境地质调查中心,保定,071051
2. 吉林大学地球探测科学与技术学院,长春,130061 |
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| 摘 要： | 为了充分地验证探地雷达方法用于探测近地表含水量的有效性和可靠程度,着重分析了探地雷达反射波法用于测量含水量的相关理论和技术特点,设计了适用于高频雷达信号的速度分析算法,建立了用于分析该问题的局部含水层模型.利用FDTD方法模拟分析了局部含水层的探地雷达响应,应用速度分析理论及Topp模型,反演得到了研究区域的含水量结果.
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| 关 键 词： | 探地雷达 局部含水层 速度分析 数值模拟 |
| 收稿时间： | 2008-6-12 |
| 修稿时间： | 2008-9-22 |
Measurement of near surface water content using ground-penetrating radar-a simulation study |
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| WANG Chun-hui,LIU Si-xin,HUANG Ling.Measurement of near surface water content using ground-penetrating radar-a simulation study[J].Progress in Geophysics,2009,24(2):737-741. |
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| Authors: | WANG Chun-hui LIU Si-xin HUANG Ling |
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| Institution: | (1.CenterforHydrogeologyandEnvironmentalGeology,CSG,BaodingHebei071051;2.CollegeofGeo-ExplorationScienceandTechnology,JilinUniversity,Changchun130026,China) |
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| Abstract: | To fully validate the feasibility of the GPR method in the use of measuring near surface water content, the corresponding theory and technical characteristic of GPR reflected wave method are analyzed. A velocity analysis algorithm applied to high frequency radar signal is introduced, and a local aquifer model is established for such analysis. The Finite-Difference Time-Domain (FDTD) method is used to model the GPR response of the local aquifer under different measurement acquisitions. On the combination of the velocity analysis theory and the Topp formula, the water content is obtained by inverse modeling. |
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| Keywords: | ground-penetrating radar local aquifer velocity analysis numerical modeling |
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