AusMT survey data — licence and attribution
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Licence:     CC-BY-4.0
Licence URL: https://creativecommons.org/licenses/by/4.0/
Licensor:    Geological Survey of Western Australia
Year:        2023

Attribution (cite as):
  Geological Survey of Western Australia, MAGIX registration 72411, Seahorse MT 2022-23, data owner BHP, acquired by Moombarriga Geoscience Pty Ltd. Licensed CC BY 4.0.

This LICENSE.txt travels with the data files in this archive. The transfer functions were
distributed via the AusMT portal, which serves only openly licensed Australian magnetotelluric
releases; the licence above is the custodian's, set in the survey's survey.yaml. Reuse under the
terms of that licence (https://creativecommons.org/licenses/by/4.0/).

Changes were made: 445 of the 550 delivered EDI files are served. The 167 of the 2022 archive are byte identical to their members. The 278 of the 2023 archive have ACQDATE and FILEDATE rewritten by _tools/repair_edi_header_dates.py: ACQDATE, which printed the placeholder 01/01/01, set to the date of the file's own first recording identifier on 208 and blanked on 70 that carry none, FILEDATE rewritten month first into ISO 8601 on all 278, and a nine line record inserted after >INFO. No other byte changed, proved file by file against provenance/as-delivered/. The 105 files of the two earlier MORPHY FINAL sets are not served and are recorded with their digests.. AusMT serves derived renditions (canonical EMTF XML; MTH5 where available) generated from the deposited files; per-station conditioning notes are recorded in the machine-readable products.
