{
 "schema": "ausmt-station",
 "version": "0.1",
 "ausmt_id": "au.newer-volcanic-province-2019.E8",
 "station": "E8",
 "survey": "Newer Volcanic Province 2019",
 "survey_id": "newer-volcanic-province-2019",
 "country": "Australia",
 "organisation": "Adelaide University",
 "location": {
  "lat": -37.955106,
  "lon": 141.294997
 },
 "data": {
  "type": "BBMT",
  "n_periods": 59,
  "period_min_s": 0.005012,
  "period_max_s": 3162.27732
 },
 "diagnostics": {
  "median_relative_error": 0.065,
  "remote_reference": true,
  "tipper_available": false,
  "completeness_smoothness_diagnostic": {
   "value": 4.0,
   "basis": "e",
   "note": "not a quality or geological-value judgement"
  },
  "classification": "1-D",
  "skew_beta_median_deg": 0.8,
  "pct_periods_3d": 19,
  "method": "phase-tensor (Caldwell 2004)",
  "note": "screening diagnostic, not an interpretation product"
 },
 "processing": {
  "software": "LEMIMT",
  "algorithm": "Robust Remote Reference",
  "remote_reference": true,
  "remote_site": null,
  "file_written_by": {
   "name": "LEMIMT",
   "version": "1.4.6"
  },
  "note": "survey.name = Newer Volcanic Province BBMT\nsurvey.project = NVP_2019\nsurvey.acquired_by.author = Samuel Jennings, Ben Kay, Goran Boren, Matthew Linke\nsurvey.acquired_by.organization = University of Adelaide\nsurvey.project_lead.author = Graham Heinson\nsurvey.project_lead.email = [email removed]\nsurvey.project_lead.organization = University of Adelaide\nsurvey.funding_source.organization = AuScope\nsurvey.country = Australia\nsurvey.state = SA; VIC\nsurvey.datum = WGS84\nsurvey.release_license = CC-BY-4.0\nsurvey.citation_journal.doi = https://doi.org/10.1038/s41598-023-32403-z\nausmt.scholarly.status = no curated survey.yaml at build; scholarly section omitted (CSV-only survey)\nstation.id = E8\nstation.geographic_name = Limestone Coast\nstation.data_type = BBMT\nstation.channels_recorded = Ex, Ey, Hx, Hy\nstation.orientation.reference_frame = geomagnetic\nstation.location.declination.value = 10.05\nstation.location.declination.model = IGRF-13 (2017), pyIGRF\nstation.time_period.start = 2019-08-25T12:22:33.000000+00:00\nstation.time_period.end = 2019-08-27T07:41:56.351000+00:00\nrun.id = E8_001\nrun.data_logger.manufacturer = LEMI\nrun.data_logger.model = LEMI-423\nrun.data_logger.id = #0038\nrun.data_logger.doi = https://doi.org/10.82388/bqys907u\nrun.data_logger.firmware.version = 2.1\nrun.data_logger.timing_system.type = GPS\nrun.data_logger.power_source.type = pb-acid gel cell\nrun.sample_rate = 1000\nrun.ex.dipole_length = 50\nrun.ex.measurement_azimuth = 0\nrun.ex.contact_resistance.start = 3.2 kilo-ohms\nrun.ex.dc_offset.start = 12.3 millivolts\nrun.ex.electrode.type = Cu-CuSO4 (LEMI Lemi-701)\nrun.ey.dipole_length = 50\nrun.ey.measurement_azimuth = 270\nrun.ey.contact_resistance.start = 5.2 kilo-ohms\nrun.ey.dc_offset.start = 5.4 millivolts\nrun.ey.electrode.type = Cu-CuSO4 (LEMI Lemi-701)\nrun.hx.sensor.manufacturer = LEMI\nrun.hx.sensor.model = LEMI-120\nrun.hx.sensor.id = 136\nrun.hx.sensor.doi = https://doi.org/10.82388/hy7tibrx\nrun.hx.measurement_azimuth = 0\nrun.hy.sensor.manufacturer = LEMI\nrun.hy.sensor.model = LEMI-120\nrun.hy.sensor.id = 117\nrun.hy.sensor.doi = https://doi.org/10.82388/5rezalvk\nrun.hy.measurement_azimuth = 90\nbattery.type = Sonnenschein GF 12 63 Y\nbattery.voltage.start = 12.73\ntransfer_function.software.name = LEMIMT\ntransfer_function.software.version = 1.4.6\ntransfer_function.processing_type = Robust Remote Reference\ntransfer_function.sign_convention = exp(+ i\\omega t)\noriginal_program.name = Geotools\noriginal_program.version = 4.0.5.12583\noriginal_program.role = field data management and EDI export\nprovenance.creator.organization = University of Adelaide\nprovenance.submitter.author = Ben Kay\nprovenance.creation_time = 2026-07-15\ncopyright.conditions_of_use = Released under CC-BY-4.0. Cite the survey DOI where given and\nacknowledge the University of Adelaide.\nstation.comments = note: HZ/RX/RY channel declarations are exporter template artifacts; Hz was\nnot recorded; no tipper data present\nnote: original MTpy fieldnotes INFO block (unpopulated, all-zero values) replaced 2026-07-15\nausmt.lineage.origin_chain = field acquisition to Geotools 4.0.5.12583 EDI export to cleaned\nfield-metadata sheet to EDI header enrichment (NCI package) to AusMT corpus\nausmt.lineage.source_input_file = E8.edi\nausmt.lineage.source_input_sha256 = 8831b7ac02309e01ee16561cee00046c47e97f47d23800c05f59da9a6240f934\nausmt.lineage.source_filedate = 07/15/26\nausmt.lineage.pipeline_version = v2.0\nausmt.lineage.pipeline_run_date = 2026-07-21"
 },
 "distribution": {
  "edi_available": true,
  "license": "CC-BY-4.0",
  "edi_path": "edi/newer-volcanic-province-2019/E8.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": "25c90921c42c72bbc5455b4bbdab9137cf8b8e48",
  "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": "2026-09-09T06:22:47.791693+00:00",
  "input_file": "E8.edi",
  "input_sha256": "242c856389a7d0b560988afc221374e80ca29ca8704808e866ad41101a9547e4"
 },
 "coordinate_qc": null,
 "canonical_conditioning": [
  "survey.id->newer-volcanic-province-2019",
  "sign_convention: 'exp(+ i\\omega t)' is a library default — EDI carries no machine-readable sign convention; NOT asserted by source",
  "declination.epoch/model: library defaults (epoch=None, model=IGRF-13 (2017), pyIGRF) — 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:Samuel Jennings; Ben Kay; Graham Heinson; Goran Boren",
  "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": {
  "evidence": {
   "branch": "mt",
   "zrot": "0",
   "trot": null,
   "rotspec": null,
   "hmeas_azimuths": {
    "hx": null,
    "hy": null
   },
   "emeas_azimuths": {
    "ex": null,
    "ey": null
   }
  },
  "impedance_rotation_deg_source": null,
  "tipper_rotation_deg_source": null,
  "derotated": false,
  "frame_served": "declared-zero",
  "declared_azimuth_deg": 0.0,
  "convention_check": {
   "verdict": "ok",
   "phs_xy_median_deg": 41.66,
   "phs_yx_median_deg": -138.78,
   "n_periods_used": 59,
   "detail": null
  }
 },
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   "id": "E8_001",
   "time_period": {
    "start": "2019-08-25T12:22:33.000000+00:00",
    "end": "2019-08-27T07:41:56.351000+00:00"
   },
   "sample_rate_hz": 1000.0,
   "data_logger": {
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    "model": "LEMI-423",
    "serial_number": "#0038",
    "identifiers": [
     {
      "scheme": "DOI",
      "identifier": "10.82388/bqys907u"
     }
    ]
   },
   "channels": [
    {
     "component": "ex",
     "measurement_azimuth_deg": 0.0,
     "dipole_length_m": 50.0,
     "contact_resistance": {
      "source_value": "3.2 kilo-ohms",
      "value": 3200.0,
      "unit": "ohm"
     }
    },
    {
     "component": "ey",
     "measurement_azimuth_deg": 270.0,
     "dipole_length_m": 50.0,
     "contact_resistance": {
      "source_value": "5.2 kilo-ohms",
      "value": 5200.0,
      "unit": "ohm"
     }
    },
    {
     "component": "hx",
     "measurement_azimuth_deg": 0.0,
     "sensor": {
      "manufacturer": "LEMI",
      "model": "LEMI-120",
      "serial_number": "136",
      "identifiers": [
       {
        "scheme": "DOI",
        "identifier": "10.82388/hy7tibrx"
       }
      ]
     }
    },
    {
     "component": "hy",
     "measurement_azimuth_deg": 90.0,
     "sensor": {
      "manufacturer": "LEMI",
      "model": "LEMI-120",
      "serial_number": "117",
      "identifiers": [
       {
        "scheme": "DOI",
        "identifier": "10.82388/5rezalvk"
       }
      ]
     }
    }
   ]
  }
 ],
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