{
 "schema": "ausmt-station",
 "version": "0.1",
 "ausmt_id": "au.cf23-2021.BW540",
 "station": "BW540",
 "survey": "CF23 Magnetotelluric Survey 2021 (Geological Survey of Queensland)",
 "survey_id": "cf23-2021",
 "country": "Australia",
 "organisation": "Geological Survey of Queensland",
 "location": {
  "lat": -22.208333,
  "lon": 142.124667
 },
 "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": "1-D",
  "skew_beta_median_deg": 0.2,
  "pct_periods_3d": 28,
  "method": "phase-tensor (Caldwell 2004)",
  "note": "screening diagnostic, not an interpretation product"
 },
 "processing": {
  "software": "EMpower",
  "algorithm": null,
  "remote_reference": true,
  "remote_site": "BW570",
  "file_written_by": {
   "name": "EMpower",
   "version": "v1.54.2.3"
  },
  "note": "PROJECT NAME: CF2CF3\nUNIQUE ID: {ab726c23-6e92-4d7a-9c59-2c88a6e1cbe2}\nPROCESS DATE: 2021-04-29 15:54\nDURATION: 42 h 1 m 8 s \nDECLINATION: 7°\nCOORDINATES: -22° 12' 30.0\", 142° 7' 28.8\"\nGPS (MIN - MAX): 8 - 13\nTEMPERATURE (MIN - MAX): 36° - 56°\nCOMB FILTER: 50HZ\nFINE ROBUST: NONE\nEDITING WORKBENCH\nTOTOAL REJECTED CROSSPOWERS: 0.0000%\nSTATIONS\nELECTRICS\nRECORDING ID: 10140_2021-04-25-011046\nINSTRUMENT TYPE: MTU-8A\nSTATION NAME: BW540\nOPERATOR: JS\nAZIMUTH: 0\nEX\nTAG: E1\nLENGTH: 100 [m]\nAC: 1.84674 [V]\nDC: -0.0205231 [V]\nNEGATIVE RES: 752.244 [Ω]\nPOSITIVE RES: 208.808 [Ω]\nSATURATION: 0.00092551%\nMIN VALUE: -0.794662 [V]\nMAX VALUE: 1.05208 [V]\nEY\nTAG: E2\nLENGTH: 100 [m]\nAC: 1.05341 [V]\nDC: -0.000991821 [V]\nNEGATIVE RES: 185.479 [Ω]\nPOSITIVE RES: 219.851 [Ω]\nSATURATION: 0%\nMIN VALUE: -0.556341 [V]\nMAX VALUE: 0.497074 [V]\nMAGNETICS\nRECORDING ID: 10140_2021-04-25-011046\nINSTRUMENT TYPE: MTU-8A\nSTATION NAME: BW540\nOPERATOR: JS\nAZIMUTH: 0\nHX\nTAG: H1\nSENSOR TYPE: MTC-150\nDETECTED SENSOR TYPE: MTC-150\nAC: 0.605007 [V]\nDC: -0.0534058 [V]\nCAL NAME: 54029_607FB10C.scal\nSENSOR SERIAL: 54029\nSATURATION: 0 %\nMIN VALUE: -0.271641 [V]\nMAX VALUE: 0.333365 [V]\nHY\nTAG: H2\nSENSOR TYPE: MTC-150\nDETECTED SENSOR TYPE: MTC-150\nAC: 1.15241 [V]\nDC: 0.01297 [V]\nCAL NAME: 54030_607FB10C.scal\nSENSOR SERIAL: 54030\nSATURATION: 0 %\nMIN VALUE: -0.570814 [V]\nMAX VALUE: 0.581594 [V]\nHZ\nTAG: H3\nSENSOR TYPE: MTC-150\nDETECTED SENSOR TYPE: MTC-150\nAC: 0.435057 [V]\nDC: 0.0244141 [V]\nCAL NAME: 53269_607FB10C.scal\nSENSOR SERIAL: 53269\nSATURATION: 0 %\nMIN VALUE: -0.268872 [V]\nMAX VALUE: 0.166185 [V]\nREFERENCE\nRECORDING ID: 10132_2021-04-25-024152\nINSTRUMENT TYPE: MTU-8A\nSTATION NAME: BW570\nOPERATOR: JS\nAZIMUTH: 0\nRX\nTAG: H1\nSENSOR TYPE: MTC-150\nDETECTED SENSOR TYPE: MTC-150\nAC: 0.675225 [V]\nDC: 0.032959 [V]\nCAL NAME: 54038_607FB13C.scal\nSENSOR SERIAL: 54038\nSATURATION: 0 %\nMIN VALUE: -0.288593 [V]\nMAX VALUE: 0.386632 [V]\nRY\nTAG: H1\nSENSOR TYPE: MTC-150\nDETECTED SENSOR TYPE: MTC-150\nAC: 0.675225 [V]\nDC: 0.032959 [V]\nCAL NAME: 54039_607FB13C.scal\nSENSOR SERIAL: 54038\nSATURATION: 0 %\nMIN VALUE: -0.288593 [V]\nMAX VALUE: 0.386632 [V]"
 },
 "distribution": {
  "edi_available": true,
  "license": "CC-BY-4.0",
  "edi_path": "edi/cf23-2021/BW540.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": "BW540.edi",
  "input_sha256": "5981d8e758dfcf8f7096811716df1e1c43352bbefb14a0466245736d2e043ec2"
 },
 "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": 45.17,
   "phs_yx_median_deg": -135.04,
   "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/BW540.edi"
  },
  {
   "id": "emtfxml",
   "kind": "transfer_function",
   "format": "emtfxml",
   "provenance_role": "derived",
   "representation_role": "alternate",
   "path": "xml/cf23-2021/BW540.xml"
  },
  {
   "id": "mth5",
   "kind": "transfer_function",
   "format": "mth5",
   "provenance_role": "derived",
   "representation_role": "alternate",
   "path": "h5/cf23-2021/BW540.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"
  }
 ]
}