Impedance format for Audio-magnetotelluric Data
The Z_file is an ASCII file containing the results of impedance
calculations performed on the X and Y files bearing the
same root file name and
extension. The results are ordered by frequency and the values for
each frequency occupy 2 lines with a total of 15 values per frequency.
Each value is 11 characters long. An example of the format of data for
a single frequency is:
|
11.2 |
0.5841 |
257 |
25.7 |
0.5052 |
168 |
43.5 |
|
|
153.379 |
34.161 |
11.034 |
-215.523 |
10.252 |
-129.447 |
-164.482 |
-86.834 |
The impedance variables
are listed by column number in the table below.
|
Column |
Line
1 |
Line
2 |
|
1 |
Frequency
in Hz |
re
Zxx |
|
2 |
ExHy
coherency |
im
Zxx |
|
3 |
ExHy
scalar apparent
resistivity |
re
Zxy |
|
4 |
ExHy
scalar phase |
im
Zxy |
|
5 |
EyHz
coherency |
re
Zyx |
|
6 |
EyHx
scalar apparent resistivity |
im
Zyx |
|
7 |
EyHx
scalar phase |
re
Zyy |
|
8 |
<blank> |
im
Zyy |
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