{
 "schema": "ausmt-station",
 "version": "0.1",
 "ausmt_id": "au.southern-delamerian-infill-2012.DB24B",
 "station": "DB24B",
 "survey": "Southern Delamerian Infill 2012",
 "survey_id": "southern-delamerian-infill-2012",
 "country": "Australia",
 "organisation": "Adelaide University",
 "location": {
  "lat": -36.872575,
  "lon": 141.343578
 },
 "data": {
  "type": "BBMT",
  "n_periods": 51,
  "period_min_s": 0.0064,
  "period_max_s": 1310.61599
 },
 "diagnostics": {
  "median_relative_error": 0.021,
  "remote_reference": false,
  "tipper_available": false,
  "completeness_smoothness_diagnostic": {
   "value": 4.9,
   "basis": "e",
   "note": "not a quality or geological-value judgement"
  },
  "classification": "2-D",
  "skew_beta_median_deg": 1.4,
  "pct_periods_3d": 31,
  "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": "Geotools",
   "version": "4.0.5.12583"
  },
  "note": "source.file=DB24B.edi (Grampians_Delamerian/DB24B.edi)\nsource.collection=Adelaide University's own Geotools 4.0.5.12583 export of the June 2012 Southern Delamerian infill, folder Grampians_Delamerian, which also holds this custodian's re-export of the February 2010 parent transect and two other surveys under other prefixes\nsource.sha256=26c5785a774fdf43d721c4ae95c96ace1048b64df49c40e2bbf262df39920f47\nsource.copy=provenance/as-delivered/DB24B.edi in this package, byte identical to the delivery\nrepair.defect=ACQDATE=01/01/04 and FILEDATE=09/19/26 are printed month first with a two digit year; read as delivered ACQDATE resolves to 2004-01-01, a first of January value the field sheet contradicts with a start of 2012-06-15 for row DB24B, the row the distill join matched to this station\nrepair.change=ACQDATE rewritten 01/01/04 to 2004-01-01 and FILEDATE rewritten 09/19/26 to 2026-09-19, each as printed; the nine line record inserted after >INFO; no other byte changed\nrepair.basis=the export prints a date month first and prints ACQDATE=01/01/01 where its project held no date: all 64 delivered files of this folder print FILEDATE=09/19/26, whose second field is 19 and cannot be a month, so no value in this export can be read day first; the two digit year is the same export's own convention, PROGDATE=06/06/25 for a 2025 program build and a file date of 2026-09-19, so 26 resolves to 2026 and 04 to 2004\nrepair.ruling=the repair rule of 2026-09-18: a header defect the reader refuses or misreads is repaired in the served copy, the delivered file is kept in provenance and the change is recorded in the served file\nrepair.by=AusMT, _tools/repair_edi_header_dates.py\nMAXINFO=4"
 },
 "distribution": {
  "edi_available": true,
  "license": "CC-BY-4.0",
  "edi_path": "edi/southern-delamerian-infill-2012/DB24B.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": "DB24B.edi",
  "input_sha256": "77686930937624dd55274435164c4b241f1f0fb318ba7f813d1be33a6d1d9bbc"
 },
 "coordinate_qc": null,
 "canonical_conditioning": [
  "survey.id->southern-delamerian-infill-2012",
  "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:Adelaide University",
  "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": 51,
   "phs_xy_median_deg": 39.68,
   "phs_yx_median_deg": -158.95,
   "verdict": "ok"
  },
  "declared_azimuth_deg": -55.0,
  "derotated": false,
  "evidence": {
   "branch": "mt",
   "emeas_azimuths": {
    "ex": null,
    "ey": null
   },
   "hmeas_azimuths": {
    "hx": 0.0,
    "hy": 90.0
   },
   "rotspec": null,
   "trot": "-55",
   "zrot": "-55"
  },
  "frame_served": "declared-azimuth",
  "impedance_rotation_deg_source": null,
  "tipper_rotation_deg_source": null
 },
 "runs": [
  {
   "id": "DB24B_001",
   "time_period": {
    "start": "2012-06-15T01:00:00.000000+00:00",
    "end": "2012-06-15T22:45:00.000000+00:00"
   },
   "sample_rate_hz": 1000.0,
   "data_logger": {
    "manufacturer": "Earth Data Ltd",
    "model": "PR6-24",
    "serial_number": "62222",
    "identifiers": [
     {
      "scheme": "DOI",
      "identifier": "10.82388/54bgwbw9"
     }
    ]
   },
   "channels": [
    {
     "component": "ex",
     "dipole_length_m": 47.0
    },
    {
     "component": "ey",
     "dipole_length_m": 48.0
    },
    {
     "component": "hx",
     "sensor": {
      "manufacturer": "LEMI",
      "model": "LEMI-120",
      "serial_number": "114",
      "identifiers": [
       {
        "scheme": "DOI",
        "identifier": "10.82388/l2nbl2sf"
       }
      ]
     }
    },
    {
     "component": "hy",
     "sensor": {
      "manufacturer": "LEMI",
      "model": "LEMI-120",
      "serial_number": "112",
      "identifiers": [
       {
        "scheme": "DOI",
        "identifier": "10.82388/wwo07kxn"
       }
      ]
     }
    }
   ]
  }
 ],
 "resources": [
  {
   "id": "edi",
   "kind": "transfer_function",
   "format": "edi",
   "provenance_role": "source",
   "representation_role": "original",
   "path": "edi/southern-delamerian-infill-2012/DB24B.edi"
  },
  {
   "id": "emtfxml",
   "kind": "transfer_function",
   "format": "emtfxml",
   "provenance_role": "derived",
   "representation_role": "alternate",
   "path": "xml/southern-delamerian-infill-2012/DB24B.xml"
  },
  {
   "id": "mth5",
   "kind": "transfer_function",
   "format": "mth5",
   "provenance_role": "derived",
   "representation_role": "alternate",
   "path": "h5/southern-delamerian-infill-2012/DB24B.h5"
  },
  {
   "id": "edi-zip",
   "kind": "archive",
   "format": "zip",
   "path": "bundles/southern-delamerian-infill-2012-edi.zip"
  },
  {
   "id": "xml-zip",
   "kind": "archive",
   "format": "zip",
   "path": "bundles/southern-delamerian-infill-2012-xml.zip"
  },
  {
   "id": "survey-mth5",
   "kind": "archive",
   "format": "mth5",
   "path": "bundles/southern-delamerian-infill-2012-tf.h5"
  }
 ]
}