大地电磁交错采样有限差分二维正反演研究

周武, 罗威, 蓝星, 简兴祥

Two-dimensional magnetotelluric forward and inverse analysis of the finite-difference method with staggered sampling

ZHOU Wu, LUO Wei, LAN Xing, JIAN Xing-Xiang

表1 边界条件形式

Table 1 Forms of boundary conditions

模式位置	顶边界 (z=z_min)	底边界 (z=z_max)	侧边界 (y=y_min\|y_max)
TE模式	E_y=1	$\frac{? E_{y}}{? z}$ =iωμ $\frac{E_{y}}{Z_{bottom}}$	$\frac{? E_{y}}{? x}$ =0
TM模式	H_y=1	$\frac{? H_{y}}{? z}$ =σ $\frac{H_{y}}{Z_{bottom}}$	$\frac{? H_{y}}{? x}$ =0