Data Loader: Data Format

Geoscience > Main Launcher > Seismic Menu > Data Loader > 2D Data Loading > Data Format

Data Loader: Data Format

Use the Data Format page to quickly check the binary header information in the input files. This page also allows you to override any values that are not correct in the original file. Specify corrected values in the Overrides column. Typically the values will be correct and you will not need to apply any overrides.

Read Header: Read the binary header of the first file in the list and extract the information to the dialog. The File Values column will fill in with values read from the binary header.

Data Format: Specify the format of the trace data in the file. This will either be "IEEE Float", "IBM Float", "32 Bit Integer", "16 Bit Integer" or "8 Bit Integer". This is the most common value that you will need to override. You will normally override this value when the data has been incorrectly identified as IBM floating point data when it is in fact IEEE floating point data or vice versa.

Start Time: Specify the start time of the data in milliseconds. This will normally be zero. If you are dealing with a dataset that has been truncated to your zone of interest, often the start time will not be specified in the file. Override the value here to import the data correctly.

Sample Rate: This is the sample rate in milliseconds of the trace data. A typical value here would be 2.000 for two millisecond data.

Number of Samples / Trace: The number of samples in each trace of data. We can only handle files that have a constant number of samples in each trace. This value will normally be correct.

Vertical Units:Specify the vertical dimension the trace data in the file. This will be either Milliseconds, Meters or Feet. This override allows you to specify the measurement units of depth seismic which is not defined in a standard SEG-Y file.

— MORE INFORMATION