{
 "schema": "ausmt-station",
 "version": "0.1",
 "ausmt_id": "au.cf23-2021.BB370",
 "station": "BB370",
 "survey": "CF23 Magnetotelluric Survey 2021 (Geological Survey of Queensland)",
 "survey_id": "cf23-2021",
 "country": "Australia",
 "organisation": "Geological Survey of Queensland",
 "location": {
  "lat": -23.160222,
  "lon": 139.713111
 },
 "data": {
  "type": "AMT",
  "n_periods": 104,
  "period_min_s": 0.0001,
  "period_max_s": 5825.42144
 },
 "diagnostics": {
  "median_relative_error": 0.0,
  "remote_reference": true,
  "tipper_available": true,
  "completeness_smoothness_diagnostic": {
   "value": 5.0,
   "basis": "e",
   "note": "not a quality or geological-value judgement"
  },
  "classification": "2-D",
  "skew_beta_median_deg": 0.7,
  "pct_periods_3d": 3,
  "method": "phase-tensor (Caldwell 2004)",
  "note": "screening diagnostic, not an interpretation product"
 },
 "processing": {
  "software": "EMpower",
  "algorithm": null,
  "remote_reference": true,
  "remote_site": "BW240",
  "file_written_by": {
   "name": "EMpower",
   "version": "v1.54.2.3"
  },
  "note": "PROJECT NAME: CF2CF3\nUNIQUE ID: {cbc96b78-3c62-4c5b-a939-b534e6a768f9}\nPROCESS DATE: 2021-05-20 09:28\nDURATION: 49 h 53 m 52 s \nDECLINATION: 7°\nCOORDINATES: -23° 9' 36.8\", 139° 42' 47.2\"\nGPS (MIN - MAX): 9 - 14\nTEMPERATURE (MIN - MAX): 28° - 49°\nCOMB FILTER: 50HZ\nFINE ROBUST: NONE\nEDITING WORKBENCH\nTOTOAL REJECTED CROSSPOWERS: 0.0000%\nSTATIONS\nELECTRICS\nRECORDING ID: 10138_2021-05-12-035127\nINSTRUMENT TYPE: MTU-8A\nSTATION NAME: BB370\nOPERATOR: JS\nAZIMUTH: 0\nEX\nTAG: E1\nLENGTH: 100 [m]\nAC: 1.65189 [V]\nDC: -0.000305176 [V]\nNEGATIVE RES: 748.37 [Ω]\nPOSITIVE RES: 848.292 [Ω]\nSATURATION: 0.000501024%\nMIN VALUE: -0.819515 [V]\nMAX VALUE: 0.832377 [V]\nEY\nTAG: E2\nLENGTH: 100 [m]\nAC: 1.11127 [V]\nDC: -0.0161743 [V]\nNEGATIVE RES: 682.342 [Ω]\nPOSITIVE RES: 683.841 [Ω]\nSATURATION: 2.78347e-5%\nMIN VALUE: -0.463338 [V]\nMAX VALUE: 0.647934 [V]\nMAGNETICS\nRECORDING ID: 10138_2021-05-12-035127\nINSTRUMENT TYPE: MTU-8A\nSTATION NAME: BB370\nOPERATOR: JS\nAZIMUTH: 0\nHX\nTAG: H1\nSENSOR TYPE: MTC-150\nDETECTED SENSOR TYPE: MTC-150\nAC: 0.569328 [V]\nDC: -0.0187683 [V]\nCAL NAME: 54044_607FB12F.scal\nSENSOR SERIAL: 54044\nSATURATION: 0 %\nMIN VALUE: -0.321263 [V]\nMAX VALUE: 0.248065 [V]\nHY\nTAG: H2\nSENSOR TYPE: MTC-150\nDETECTED SENSOR TYPE: MTC-150\nAC: 0.441612 [V]\nDC: -0.0161743 [V]\nCAL NAME: 54045_607FB12F.scal\nSENSOR SERIAL: 54045\nSATURATION: 0 %\nMIN VALUE: -0.203225 [V]\nMAX VALUE: 0.238388 [V]\nHZ\nTAG: H3\nSENSOR TYPE: MTC-150\nDETECTED SENSOR TYPE: MTC-150\nAC: 0.0745389 [V]\nDC: -0.0296021 [V]\nCAL NAME: 53267_607FB12F.scal\nSENSOR SERIAL: 53267\nSATURATION: 0 %\nMIN VALUE: -0.00949174 [V]\nMAX VALUE: 0.0650471 [V]\nREFERENCE\nRECORDING ID: 10140_2021-05-12-000531\nINSTRUMENT TYPE: MTU-8A\nSTATION NAME: BW240\nOPERATOR: JS\nAZIMUTH: 0\nRX\nTAG: H1\nSENSOR TYPE: MTC-150\nDETECTED SENSOR TYPE: MTC-150\nAC: 0.466623 [V]\nDC: -0.0517273 [V]\nCAL NAME: 54029_607FB10C.scal\nSENSOR SERIAL: 54029\nSATURATION: 0 %\nMIN VALUE: -0.261049 [V]\nMAX VALUE: 0.205573 [V]\nRY\nTAG: H1\nSENSOR TYPE: MTC-150\nDETECTED SENSOR TYPE: MTC-150\nAC: 0.466623 [V]\nDC: -0.0517273 [V]\nCAL NAME: 54030_607FB10C.scal\nSENSOR SERIAL: 54029\nSATURATION: 0 %\nMIN VALUE: -0.261049 [V]\nMAX VALUE: 0.205573 [V]"
 },
 "distribution": {
  "edi_available": true,
  "license": "CC-BY-4.0",
  "edi_path": "edi/cf23-2021/BB370.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": "e208b15fb70740d8c44de51c532e6debd59c4e24",
  "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": "2026-09-20T04:08:35.832153+00:00",
  "input_file": "BB370.edi",
  "input_sha256": "d14e8c7e1f47752875f9d62a799c684a1cbe181da3f0bd348de33cad6c381808"
 },
 "coordinate_qc": null,
 "canonical_conditioning": [
  "survey.id->cf23-2021",
  "survey.geographic_name sanitized",
  "rotation: unknown — writer requires array; zeros written, frame NOT asserted",
  "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",
  "citation.authors<-survey_meta:Simpson, J.; Brown, D.; Kyi, D.; Cant, R.; Purdy, D.; Blake, P.; Greenwood, M.; Killen, D.; Degeling, H.",
  "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": {
  "convention_check": {
   "detail": null,
   "n_periods_used": 104,
   "phs_xy_median_deg": 29.72,
   "phs_yx_median_deg": -158.15,
   "verdict": "ok"
  },
  "declared_azimuth_deg": 0.0,
  "derotated": false,
  "evidence": {
   "branch": "spectra",
   "emeas_azimuths": {
    "ex": null,
    "ey": null
   },
   "hmeas_azimuths": {
    "hx": 0.0,
    "hy": 90.0
   },
   "rotspec": "0",
   "trot": null,
   "zrot": null
  },
  "frame_served": "declared-zero",
  "impedance_rotation_deg_source": null,
  "tipper_rotation_deg_source": null
 },
 "resources": [
  {
   "id": "edi",
   "kind": "transfer_function",
   "format": "edi",
   "provenance_role": "source",
   "representation_role": "original",
   "path": "edi/cf23-2021/BB370.edi"
  },
  {
   "id": "emtfxml",
   "kind": "transfer_function",
   "format": "emtfxml",
   "provenance_role": "derived",
   "representation_role": "alternate",
   "path": "xml/cf23-2021/BB370.xml"
  },
  {
   "id": "mth5",
   "kind": "transfer_function",
   "format": "mth5",
   "provenance_role": "derived",
   "representation_role": "alternate",
   "path": "h5/cf23-2021/BB370.h5"
  },
  {
   "id": "edi-zip",
   "kind": "archive",
   "format": "zip",
   "path": "bundles/cf23-2021-edi.zip"
  },
  {
   "id": "xml-zip",
   "kind": "archive",
   "format": "zip",
   "path": "bundles/cf23-2021-xml.zip"
  },
  {
   "id": "survey-mth5",
   "kind": "archive",
   "format": "mth5",
   "path": "bundles/cf23-2021-tf.h5"
  }
 ]
}