ASEG-GDF2- Data Definition File
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ASEG-GDF2 (Australian Society of Exploration Geophysicists General Data Format Revision 2) is a data standard for the exchange and archive of geophysical data. Its primary purpose is to provide a consistent and self-documenting method for exchanging and archiving geophysical data between organisations with different hardware and software systems. For data to comply with the standard, it must be stored as a set of related ASCII files, which must include the following four filetypes as a minimum: File1.DAT, survey.DES, survey.DFN and survey.MET. The .dfn files enable the writing of code to enable to recovery of the geophysical data fields and their associated formats.
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| Extensions | .dfn |
|---|---|
| Signatures | 4445464e at byte 0 (ASEG-GDF2- Data definition file) |
| PRONOM | fmt/1593 |
| Wikidata | Q111512376 |
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From PRONOM, Wikidata. Updated 2026-10-20.