{
 "schema": "ausmt-survey-metadata",
 "version": "0.1",
 "survey_id": "kapunda-2019-20",
 "title": "Kapunda 2019-20",
 "dates": {
  "coverage": {
   "year_start": 2019,
   "year_end": 2020
  }
 },
 "abstract": "A dense broadband magnetotelluric grid over the Kapunda in-situ copper and gold recovery trial site in the Adelaide Rift Complex, South Australia, recorded in two campaigns between April 2019 and July 2020. The 109 served soundings sit about 90 m apart on a block 1.4 km north to south by 1.1 km east to west, with no two soundings more than 1,396 m apart. Run metadata reaches 69 of them and records a Phoenix MTU-8A or MTU-5C on MTC-150 coils with two orthogonal dipoles of 48 m to 106 m at 0 and 90 degrees. Served periods run 0.000096 s to 2,913 s, 23 to 100 a station, and 23 stations carry a tipper. Transfer functions were processed with Geotools 1.9.6 and remote referenced against a second magnetic pair. The field record names 70 of the 109; its remote reference sites, 26 and 28 km away, were not delivered. README.md carries the caveats.",
 "subjects": [
  {
   "code": "370602",
   "scheme": "ANZSRC-FoR-2020",
   "label": "Electrical and electromagnetic methods in geophysics",
   "uri": "https://linked.data.gov.au/def/anzsrc-for/2020/370602"
  }
 ],
 "organisations": [
  {
   "name": "Adelaide University",
   "ror": "https://ror.org/028g18b61",
   "roles": [
    "custodian",
    "publisher"
   ],
   "primary_custodian": true
  }
 ],
 "funders": [
  {
   "name": "CRC-P",
   "award_number": "GA18145"
  }
 ],
 "rights": {
  "license": "CC-BY-4.0",
  "access": "open"
 },
 "extent": {
  "bbox": {
   "west": 138.9146,
   "south": -34.3642,
   "east": 138.9266,
   "north": -34.3515
  }
 },
 "attribution": {
  "custodian": "Adelaide University",
  "custodian_ror": "https://ror.org/028g18b61",
  "changes_made": true,
  "changes_summary": "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.",
  "declared_by": "Ben",
  "declared_date": "2026-09-19"
 },
 "provenance": {
  "generated": "2026-09-20T05:05:11Z",
  "generator": "ausmt/extract.build_portal 0.2.1"
 }
}