COPROD-2S1 Model
True data set

Data structure

The profile 160 km long is considered with 61 sites (X = 0, 12, 20, 25, 28, 30, 32, 34, 36, 38, 40, 42, 44, 46, 48, 50, 52, 54, 56, 58, 60, 62, 64, 66, 68, 70, 72, 74, 76, 78, 80, 82, 84, 86, 88, 90, 92, 94, 96, 98, 100, 102, 104, 106, 108, 110, 112, 114, 116, 118, 120, 122, 124, 126, 128, 130, 132, 135, 140, 148, 160 km).

All sites are at the ground surface (Z = 0 km).

The period range is about 4 decades wide (T = 2, 5, 10, 20, 50, 100, 200, 500, 1000, 2000, 5000, 10000 s).

The following bi-modal MT responses in each site are given for each period: apparent resistivity and impedance phase in both TE(EP) and TM(HP) modes, and tipper component in TE mode.

Data are presented as original data tables (file 2S1.DTB) and in the optional J-format (file 2S1.DTJ).

Important comments

• The plane wave model excitation is considered with time dependence given by exp(-iwt).
• TE impedance phase is reduced to quadrant [-90,0].
• Data modelling was done by finite-difference forward procedure of the inversion code INV2D_FF (Golubev, Varentsov) at the grid of 70x42 nodes in the modelling area [-275,535]x[-165,410] km.
• Data errors submitted (being of about 1% value) characterize quite well error distribution for sites and components, but may have some shift in a general level.