Table 5 Parameters of different meshes for the terrain relief model.

From: Hybrid mesh for magnetotelluric forward modeling based on the finite element method

Mesh property

Horizontal size

Vertical size

NE

DoF

Time (min)

Memory (GB)

TriMES (m)

TriGR

Thickness of the first layer (m)

PriGR/TetGR

Hybrid mesh

100

1.5

15

1.0/1.5

53,108

500,815

6.617

44.4

General tetrahedral mesh

100

1.5

80

1.34

65,667

508,996

7.033

47.58

Dense tetrahedral mesh

25

1.5

20

1.5

135,669

1,046,150

16.833

97.45