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:    Adelaide University
Year:        2020

Attribution (cite as):
  Adelaide University (2020) Kapunda 2019-20

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: The served set is 109 of the 110 delivered soundings; one averaged sounding is held back for the reasons in README.md, and because its delivered file name and its DATAID are a private person's name this package keeps no copy of it and records its sha256 and size in provenance/served-files.json instead. The delivered file of each of the 109 served soundings is kept unaltered under provenance/as-delivered/. The ACQDATE and FILEDATE values of all 109 served files were rewritten into ISO 8601 by _tools/repair_edi_header_dates.py, and a nine line record was inserted after each file's >INFO line naming the delivered file, its path in the delivery, its sha256, the kept copy, the defect, the change, the basis, the ruling and the tool. No other byte of any file was changed: exactly two delivered lines differ in each of the 109, both of them date lines, and removing the nine inserted lines and restoring those two reproduces the delivered file exactly in 109 of 109. No number, no frame declaration and no gate verdict is altered by the repair, which both gates confirm file for file.. 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.
