{
 "schema": "ausmt-survey-metadata",
 "version": "0.1",
 "survey_id": "olympic-dam-2013",
 "title": "Olympic Dam 2013",
 "dates": {
  "coverage": {
   "year_start": 2013,
   "year_end": 2013
  }
 },
 "abstract": "A broadband magnetotelluric profile across the Olympic Domain of the Gawler Craton, on the Stuart Shelf north of Olympic Dam, South Australia, acquired by Adelaide University in two campaigns in 2013. Seventy six soundings run 77 km roughly north to south at a median site spacing of 1.0 km. Each site recorded two electric and three magnetic components at 1000 samples per second on an Earth Data PR6-24 with LEMI-120 coils. The transfer functions served here are CGG's 2022 robust remote reference re-processing, exported by the custodian from Geotools, and span 0.0022 to 10000 seconds over 53 to 81 periods. No file carries a tipper block, so no station publishes a vertical field transfer function. Every file declares a zero rotation and is served in that stored frame. The header dates are repaired into ISO 8601 and the delivered bytes are kept in provenance; caveats are in README.md.",
 "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",
    "data_collector"
   ],
   "primary_custodian": true
  }
 ],
 "rights": {
  "license": "CC-BY-4.0",
  "access": "open"
 },
 "extent": {
  "bbox": {
   "west": 136.88905,
   "south": -30.72868,
   "east": 137.07109,
   "north": -30.05587
  }
 },
 "provenance": {
  "generated": "2026-09-21T02:28:58Z",
  "generator": "ausmt/extract.build_portal 0.2.1"
 }
}