{
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 "version": "0.1",
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 "station": "WG-2-134",
 "survey": "Gawler Phase 2",
 "survey_id": "western-gawler-2023",
 "country": "Australia",
 "organisation": "Geological Survey of South Australia",
 "location": {
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  "lon": 133.577639
 },
 "data": {
  "type": "AMT",
  "n_periods": 100,
  "period_min_s": 0.0001,
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 },
 "diagnostics": {
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  "remote_reference": false,
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  "completeness_smoothness_diagnostic": {
   "value": 4.9,
   "basis": "e",
   "note": "not a quality or geological-value judgement"
  },
  "classification": "2-D",
  "skew_beta_median_deg": 1.8,
  "pct_periods_3d": 35,
  "method": "phase-tensor (Caldwell 2004)",
  "note": "screening diagnostic, not an interpretation product"
 },
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  "remote_reference": false,
  "remote_site": null,
  "file_written_by": {
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  },
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\"magnetic\",\n\"start\": 1658454848,\n\"status\": \"Unapproved\",\n\"stop\": 1658525417,\n\"time_elapsed\": 488,\n\"time_zone\": \"local_time\",\n\"time_zone_offset\": 0,\n\"uuid\": \"{c26a8007-81ac-4bcc-8d5d-60775bc8843e}\",\n\"version\": 3\n}"
 },
 "distribution": {
  "edi_available": true,
  "license": "CC-BY-4.0",
  "edi_path": "edi/western-gawler-2023/LineNo__StationNo_218.edi"
 },
 "provenance": {
  "pipeline": "ausmt/extract.build_portal",
  "pipeline_version": "0.2.1",
  "extractor": "mt_metadata (community canonical)",
  "software": {
   "python": "3.12.14",
   "mt_metadata": "1.0.10",
   "mth5": "0.6.8"
  },
  "git_commit": "25c90921c42c72bbc5455b4bbdab9137cf8b8e48",
  "parameters": {
   "dimensionality": {
    "beta_per_period_deg": 3.0,
    "skew_3d_deg": 5.0,
    "pct_periods_3d_threshold": 40,
    "ellip_2d_deg": 0.1,
    "min_rez_row_sine": 0.01,
    "beta_physical_cap_deg": 15.0,
    "min_usable_period_frac": 0.5,
    "skew_aggregation": "median"
   },
   "diagnostic": "completeness/smoothness (median rel error + coverage + smoothness)"
  },
  "generated": "2026-09-09T06:22:47.791693+00:00",
  "input_file": "LineNo__StationNo_218.edi",
  "input_sha256": "4a35dc5e2ede9fc56b9b5d3d5e39d15a059f73a8b2ae8fa541de566048f8cbb5"
 },
 "coordinate_qc": null,
 "canonical_conditioning": [
  "survey.id->western-gawler-2023",
  "station.id->WG2134",
  "station.source_id_preserved_in_site_name:WG-2-134",
  "sign_convention: '+' is a library default — EDI carries no machine-readable sign convention; NOT asserted by source",
  "declination.epoch/model: library defaults (epoch=None, model=IGRF) — an EDI states only the declination value; epoch/model NOT asserted by source",
  "channel orientations: degenerate/defaulted (ex and ey azimuths both 0 deg — parallel dipoles are non-physical); orientations NOT asserted by source EMEAS geometry",
  "citation.authors<-survey_meta:Geological Survey of South Australia",
  "citation.title<-survey_meta",
  "copyright.release_status=Data Citation Required; conditions_of_use set from licence CC-BY-4.0 (replaced mt_metadata default boilerplate)"
 ],
 "frame": {
  "evidence": {
   "branch": "mt",
   "zrot": "0",
   "trot": "0",
   "rotspec": null,
   "hmeas_azimuths": {
    "hx": 0.0,
    "hy": 0.0
   },
   "emeas_azimuths": {
    "ex": null,
    "ey": null
   }
  },
  "impedance_rotation_deg_source": null,
  "tipper_rotation_deg_source": null,
  "derotated": false,
  "frame_served": "declared-zero",
  "declared_azimuth_deg": 0.0,
  "convention_check": {
   "verdict": "ok",
   "phs_xy_median_deg": 20.78,
   "phs_yx_median_deg": -150.54,
   "n_periods_used": 100,
   "detail": null
  }
 },
 "runs": [
  {
   "id": "WG-2-134-r01",
   "sample_rate_hz": 24000.0,
   "data_logger": {
    "model": "RMT03-J",
    "serial_number": "10263"
   },
   "channels": [
    {
     "component": "ex"
    },
    {
     "component": "ey"
    },
    {
     "component": "hx"
    },
    {
     "component": "hy"
    },
    {
     "component": "hz"
    }
   ]
  }
 ],
 "resources": [
  {
   "id": "edi",
   "kind": "transfer_function",
   "format": "edi",
   "provenance_role": "source",
   "representation_role": "original",
   "path": "edi/western-gawler-2023/LineNo__StationNo_218.edi"
  },
  {
   "id": "emtfxml",
   "kind": "transfer_function",
   "format": "emtfxml",
   "provenance_role": "derived",
   "representation_role": "alternate",
   "path": "xml/western-gawler-2023/WG-2-134.xml"
  },
  {
   "id": "edi-zip",
   "kind": "archive",
   "format": "zip",
   "path": "bundles/western-gawler-2023-edi.zip"
  },
  {
   "id": "xml-zip",
   "kind": "archive",
   "format": "zip",
   "path": "bundles/western-gawler-2023-xml.zip"
  }
 ]
}