Geoelectric Section Plotting in The Permafrost Using The Method of Reflected Electromagnetic Waves (MREMW)

L. Volkomirskaya, O. Gulevich, A. Reznikov, V. Varenkov
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Abstract

Summary Based on the permafrost study, we analyze data of the method of reflected electromagnetic waves (MREMW), including both kinematic characteristics of the section and attenuation features, determined by conductivity. The highly inhomogeneous structure of the upper permafrost is shown on a normalized conductivity section and compared to the near-field transient electromagnetic sounding data. The spatial resolution of MREMW is higher than for traditional electric prospecting and corresponds to the resolution of deep GPR. The MREMW penetration depth in the high conductive salty medium with thawing boundaries reached over 40 meters.
利用反射电磁波(MREMW)法绘制多年冻土地电剖面
在多年冻土研究的基础上,分析了反射电磁波(MREMW)方法的数据,包括剖面的运动特征和由电导率确定的衰减特征。在标准化电导率剖面上显示了上层多年冻土的高度不均匀结构,并与近场瞬变电磁测深数据进行了比较。MREMW的空间分辨率高于传统电法勘探,与深部探地雷达的分辨率相当。MREMW在高导电性含盐介质中的渗透深度达到40 m以上。
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