{
 "schema": "ausmt-station",
 "version": "0.1",
 "ausmt_id": "au.wa-mt-phase-1.MBX22",
 "station": "MBX22",
 "survey": "WA-MT Phase 1",
 "survey_id": "wa-mt-phase-1",
 "country": "Australia",
 "organisation": "Geological Survey of Western Australia",
 "location": {
  "lat": -33.579675,
  "lon": 121.457695
 },
 "data": {
  "type": "LPMT",
  "n_periods": 40,
  "period_min_s": 5.0,
  "period_max_s": 40000.0
 },
 "diagnostics": {
  "median_relative_error": 0.082,
  "remote_reference": false,
  "tipper_available": true,
  "completeness_smoothness_diagnostic": {
   "value": 3.7,
   "basis": "e",
   "note": "not a quality or geological-value judgement"
  },
  "classification": "3-D",
  "skew_beta_median_deg": 3.0,
  "pct_periods_3d": 50,
  "method": "phase-tensor (Caldwell 2004)",
  "note": "screening diagnostic, not an interpretation product"
 },
 "processing": {
  "software": null,
  "algorithm": null,
  "remote_reference": false,
  "remote_site": null,
  "file_written_by": {
   "name": null,
   "version": "1.0"
  },
  "note": "source.file=MBX22.edi (WA-MT/Phase1/MBX22.edi)\nsource.collection=Geological Survey of Western Australia WA Array long-period magnetotelluric programme (WA-MT), first data release, 180 EDI files delivered to AusMT as one folder\nsource.sha256=e2253f3bc1819ebd925f00b66a1e87844c5cb5df0c40c3dd94d852eeeaab0823\nsource.copy=provenance/as-delivered/MBX22.edi in this package, byte identical to the delivery\nrepair.defect=ACQDATE = 1 / 1 / 4 is a placeholder this exporter writes where the project held no date and it publishes 2004-01-01; FILEDATE = 18/09/2025 is written day/month/year, the only exporter in this delivery that does\nrepair.change=ACQDATE set to 2024-03-02, the field sheet start date for this station, and FILEDATE rewritten 18/09/2025 to ISO 8601 read day first; no other byte is changed apart from the padding after a value whose length moved\nrepair.basis=this file's exporter (PROGVERS 1.0 with FILEBY 3D-Grid) writes DAY/month/year with a four digit year, which is the opposite of the other three exporters in this delivery: all 3 files it wrote print FILEDATE 18/09/2025, whose first field 18 is not a month, and no file it wrote prints a two digit year; its ACQDATE and PROGDATE print the placeholder 1 / 1 / 4, which states no date and publishes 2004-01-01\nrepair.ruling=the repair rule of owner ruling 2026-09-18, under which a served copy is corrected before upload and the delivered file is kept in provenance; no ruling names this survey and one is owed\nrepair.by=AusMT, _tools/repair_edi_header_dates.py\nempty"
 },
 "distribution": {
  "edi_available": true,
  "license": "CC-BY-4.0",
  "edi_path": "edi/wa-mt-phase-1/MBX22.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": "2026-09-21T01:46:08.361354+00:00",
  "input_file": "MBX22.edi",
  "input_sha256": "6d56f6ef543ba16e71077877923f72e0b02a4ed7b5e8935d0fc6cf3ca5fe184d"
 },
 "coordinate_qc": null,
 "canonical_conditioning": [
  "survey.id->wa-mt-phase-1",
  "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 Western 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": {
  "convention_check": {
   "detail": null,
   "n_periods_used": 40,
   "phs_xy_median_deg": 41.76,
   "phs_yx_median_deg": -114.27,
   "verdict": "ok"
  },
  "declared_azimuth_deg": 0.0,
  "derotated": false,
  "evidence": {
   "branch": "mt",
   "emeas_azimuths": {
    "ex": null,
    "ey": null
   },
   "hmeas_azimuths": {
    "hx": 0.0,
    "hy": 90.0
   },
   "rotspec": null,
   "trot": null,
   "zrot": "0"
  },
  "frame_served": "declared-zero",
  "impedance_rotation_deg_source": null,
  "tipper_rotation_deg_source": null
 },
 "runs": [
  {
   "id": "MBX22_001",
   "time_period": {
    "start": "2024-03-02T07:36:00.000000+00:00",
    "end": "2024-04-10T07:28:26.000000+00:00"
   },
   "sample_rate_hz": 1.0,
   "data_logger": {
    "manufacturer": "LEMI",
    "model": "LEMI-424",
    "serial_number": "#0153"
   },
   "channels": [
    {
     "component": "ex",
     "measurement_azimuth_deg": 0.0,
     "dipole_length_m": 100.0
    },
    {
     "component": "ey",
     "measurement_azimuth_deg": 90.0,
     "dipole_length_m": 100.0
    },
    {
     "component": "hx",
     "sensor": {
      "manufacturer": "LEMI",
      "model": "LEMI-424 3-component fluxgate magnetometer"
     }
    },
    {
     "component": "hy",
     "sensor": {
      "manufacturer": "LEMI",
      "model": "LEMI-424 3-component fluxgate magnetometer"
     }
    },
    {
     "component": "hz"
    }
   ]
  }
 ],
 "resources": [
  {
   "id": "edi",
   "kind": "transfer_function",
   "format": "edi",
   "provenance_role": "source",
   "representation_role": "original",
   "path": "edi/wa-mt-phase-1/MBX22.edi"
  },
  {
   "id": "emtfxml",
   "kind": "transfer_function",
   "format": "emtfxml",
   "provenance_role": "derived",
   "representation_role": "alternate",
   "path": "xml/wa-mt-phase-1/MBX22.xml"
  },
  {
   "id": "mth5",
   "kind": "transfer_function",
   "format": "mth5",
   "provenance_role": "derived",
   "representation_role": "alternate",
   "path": "h5/wa-mt-phase-1/MBX22.h5"
  },
  {
   "id": "edi-zip",
   "kind": "archive",
   "format": "zip",
   "path": "bundles/wa-mt-phase-1-edi.zip"
  },
  {
   "id": "xml-zip",
   "kind": "archive",
   "format": "zip",
   "path": "bundles/wa-mt-phase-1-xml.zip"
  },
  {
   "id": "survey-mth5",
   "kind": "archive",
   "format": "mth5",
   "path": "bundles/wa-mt-phase-1-tf.h5"
  }
 ]
}