| ERTLab | > | 2. Working Environment | > | DATA INPUT | > What is a schedule file? |
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What is a schedule file? |
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Schedule and data files are text files (extension .schd and
.data) that contain location information for the electrodes
and a list of quadrapoles.
Electrodes must be identified in terms of both logical groups,
called cables, and electrode number in that
group. For each electrode, X, Y, and Z location must be specified. Additional
columns are available. ZTerrain specifies
the surface elevation above an electrode, and the borehole / surface and
remote flag specifies the electrode type (1-borehole, 2-surface,
negative for remote poles). For inversion, the quadrapoles must have data values associated with each quadrapole. For forward modeling, the quadrapole list is sufficient. For inversion the minimum data required are measured resistances (V/I). A configuration header may be used to specify the column ID for any other data that will be included. ERTLab control columns such as the Skip flag are also implemented to indicate usage in the program. This permits ultimate flexibility and independance from any single instrument output. For specific format documentation please refer to the Schedule file format. |
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