Import Observed Anomaly Data

Use this dialog to import anomaly data from space-delimited ASCII files into GM-SYS Profile Modelling. Specify the fields containing each type of data. Leave the field blank or enter zero if the column is not present in the data file.

Import Gravity/Magnetic Survey from File dialog options

File...

Browse to select the file containing the anomaly data.

Direction

Specify whether the Z values in the file are positive Up (elevation) or Down (depth)

Coordinates

Specify whether the X,Y coordinates in the file represent Model coordinates (distance along line, offset from line), or Real World XYZ  coordinates. The Real World coordinates in the input file must share the same coordinate system as the model.

Skip lines

Specify the number of header lines in the file to skip. Header lines not skipped will be imported as zeroes in all fields.
Field Unit/Index

X

Specify the column containing the X coordinates and the units of those values.

Y

Specify the column containing the Y coordinates and the units of those values.

Z

Specify the column containing the Z coordinates of the stations and the units of those values.

Obs

Specify the column containing the observed data and the units used.

Obs...

Depending upon whether you are importing gradient data, additional fields may be present.

See Also: