{
 "schema": "ausmt-station",
 "version": "0.1",
 "ausmt_id": "au.abra-2014.ABR188A",
 "station": "ABR188A",
 "survey": "Abra Magnetotelluric Survey 2014 (Geological Survey of Western Australia)",
 "survey_id": "abra-2014",
 "country": "Australia",
 "organisation": "Geological Survey of Western Australia",
 "location": {
  "lat": -24.639953,
  "lon": 118.09675
 },
 "data": {
  "type": "AMT",
  "n_periods": 53,
  "period_min_s": 4e-05,
  "period_max_s": 218.000093
 },
 "diagnostics": {
  "median_relative_error": 0.193,
  "remote_reference": false,
  "tipper_available": true,
  "completeness_smoothness_diagnostic": {
   "value": 3.1,
   "basis": "e",
   "note": "not a quality or geological-value judgement"
  },
  "classification": "3-D",
  "skew_beta_median_deg": 4.2,
  "pct_periods_3d": 64,
  "method": "phase-tensor (Caldwell 2004)",
  "note": "screening diagnostic, not an interpretation product"
 },
 "processing": {
  "software": "MAXSECT=12",
  "algorithm": null,
  "remote_reference": false,
  "remote_site": null,
  "file_written_by": {
   "name": "MAXSECT=12",
   "version": null
  },
  "note": "source.file=ABR188A.edi (72580.zip!Abra_EDIs/ABR188A.edi)\nsource.collection=Geological Survey of Western Australia MAGIX registration 72580, Abra MT 2014, delivered as 72580.zip\nsource.sha256=98c4c872f26ff31e57f232324da979051267acde6b448ca375323338d05e9626\nsource.copy=provenance/as-delivered/ABR188A.edi in this package, byte identical to the delivery\nrepair.defect=the HEAD block prints LAT as 24:38:23.832 with no sign for a site south of the equator, which the reader takes as printed and places at 24.639953 N\nrepair.change=LAT rewritten from 24:38:23.832 to -24:38:23.832, the sign this file's own REFLAT prints; LONG is unchanged, and no other byte is changed apart from these nine inserted lines\nrepair.basis=the DEFINEMEAS block of this same file prints REFLAT as -24:38:23.832 and REFLONG as 118:05:48.30, the HEAD magnitudes to the printed digit with a south sign; the MAGIX 72580 geometry, EPSG 7844, has a point 1.807 m from the corrected position on the WGS84 ellipsoid; and row ABR188A of the report's Appendix 1 site table, printed in MGA zone 50 metres, a southern hemisphere grid, lies 0.53 m from it on the GRS80 ellipsoid\nrepair.ruling=owner ruling 2026-09-18: a header defect the reader misreads is repaired in the served copy and the delivered file is kept in provenance\nrepair.by=AusMT, _tools/repair_edi_header_hemisphere.py\nMAXINFO=999\n--- Source file(s) ---\n188_mt_auto_mt_processing_ct_3.edi\n188_mt_auto_mt_processing_ct_3_1.edi\n188_mt_auto_mt_processing_median_3.edi\n188_mt_auto_mt_processing_median_3_1.edi\n188_mt_auto_mt_processing_stack_all_3.edi\n188_mt_auto_mt_processing_stack_all_3_1.edi\n188_mt_auto_rr_mt_processing_ct.edi\n188_mt_auto_rr_mt_processing_ct_1.edi\n188_mt_auto_rr_mt_processing_median.edi\n188_mt_auto_rr_mt_processing_median_1.edi\n188_mt_auto_rr_mt_processing_stack_all.edi\n188_mt_auto_rr_mt_processing_stack_all_1.edi\n\n--- INFO from 188_mt_auto_mt_processing_ct_3.edi\n\n\n\n--- INFO from 188_mt_auto_mt_processing_ct_3_1.edi\n\n\n\n--- INFO from 188_mt_auto_mt_processing_median_3.edi\n\n\n\n--- INFO from 188_mt_auto_mt_processing_median_3_1.edi\n\n\n\n--- INFO from 188_mt_auto_mt_processing_stack_all_3.edi\n\n\n\n--- INFO from 188_mt_auto_mt_processing_stack_all_3_1.edi\n\n\n\n--- INFO from 188_mt_auto_rr_mt_processing_ct.edi\n\n\n\n--- INFO from 188_mt_auto_rr_mt_processing_ct_1.edi\n\n\n\n--- INFO from 188_mt_auto_rr_mt_processing_median.edi\n\n\n\n--- INFO from 188_mt_auto_rr_mt_processing_median_1.edi\n\n\n\n--- INFO from 188_mt_auto_rr_mt_processing_stack_all.edi\n\n\n\n--- INFO from 188_mt_auto_rr_mt_processing_stack_all_1.edi"
 },
 "distribution": {
  "edi_available": true,
  "license": "CC-BY-4.0",
  "edi_path": "edi/abra-2014/ABR188A.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": "2026-09-28T03:46:37.537752+00:00",
  "input_file": "ABR188A.edi",
  "input_sha256": "d36e3b26b796e787ebad4dff64c68d63ed5a50fa3c4f8a6ae99cba50a22d126a",
  "source": {
   "original_filename": "ABR188A.edi",
   "source_record_id": "72580.zip!Abra_EDIs/ABR188A.edi"
  }
 },
 "coordinate_qc": null,
 "canonical_conditioning": [
  "survey.id->abra-2014",
  "station.source_file_preserved_in_site_name",
  "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": 53,
   "phs_xy_median_deg": 38.67,
   "phs_yx_median_deg": -152.05,
   "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": null
  },
  "frame_served": "declared-zero",
  "impedance_rotation_deg_source": null,
  "tipper_rotation_deg_source": null,
  "survey_frame_note": "frame: mixed declared frames across stations: 0°…90° — each station is served in its own declared acquisition frame; this survey does not share one frame (nothing de-rotated)"
 },
 "resources": [
  {
   "id": "edi",
   "kind": "transfer_function",
   "format": "edi",
   "provenance_role": "source",
   "representation_role": "original",
   "path": "edi/abra-2014/ABR188A.edi"
  },
  {
   "id": "emtfxml",
   "kind": "transfer_function",
   "format": "emtfxml",
   "provenance_role": "derived",
   "representation_role": "alternate",
   "path": "xml/abra-2014/ABR188A.xml"
  },
  {
   "id": "mth5",
   "kind": "transfer_function",
   "format": "mth5",
   "provenance_role": "derived",
   "representation_role": "alternate",
   "path": "h5/abra-2014/ABR188A.h5"
  },
  {
   "id": "edi-zip",
   "kind": "archive",
   "format": "zip",
   "path": "bundles/abra-2014-edi.zip"
  },
  {
   "id": "xml-zip",
   "kind": "archive",
   "format": "zip",
   "path": "bundles/abra-2014-xml.zip"
  },
  {
   "id": "survey-mth5",
   "kind": "archive",
   "format": "mth5",
   "path": "bundles/abra-2014-tf.h5"
  }
 ]
}