Evaluation of the 3D Topographic Effect of Homogeneous and Inhomogeneous Media on the Results of 2D Inversion of Electrical Resistivity Tomography Data
Table 1
Explanatory table of 3D model influence parameters.
Influence factor (of 3D effect)
dxter(m)
dyter(m)
dxhet(m)
dyhet(m)
dzhet(m)
xchet(m)
ychet(m)
zchet(m)
disyhet(m)
Numel
dxel(m)
The slope angle of the topography and the length of the topography along the -axis(homogeneous medium)
6
10
1
1.2 4 5.6
—
—
—
—
—
—
—
24
0.125
Resistivity contrast ratio
10
20 40 60 80 100
1
1.2 5.6
0.6
0.6 5.6
0.43
1.5
0
0.3
—
24
0.125
Resistivity contrast ratio
20 40 60 80 100
10
1
1.2 5.6
0.6
0.6 5.6
0.43
1.5
0
0.3
—
24
0.125
The size of the inhomogeneity in the Y-direction (medium without topography)
10 40
40 10
—
—
0.6
0.6 1.2 2 4 5.6
0.43
1.5
0
0.3
—
24
0.125
The size of the inhomogeneity and topography in the Y-direction (medium with topography)
10 40
40 10
1
0.6 1.2 2 4 5.6
0.6
0.6 1.2 2 4 5.6
0.43
1.5
0
0.3
—
24
0.125
Inhomogeneity distance from the measuring line (medium without topography)
10 40
40 10
—
—
0.6
0.6
0.43
1.5
0.3 0.6 1.3 1.8 2.3
0.3
0 0.3 1 1.5 2
24
0.125
Inhomogeneity distance from the measuring line (medium with topography)
