{
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 "version": "0.1",
 "ausmt_id": "au.lawn-hill-riversleigh-2020.RVL1020",
 "station": "RVL1020",
 "survey": "Lawn Hill - Riversleigh Magnetotelluric Survey 2020 (Geological Survey of Queensland)",
 "survey_id": "lawn-hill-riversleigh-2020",
 "country": "Australia",
 "organisation": "Geological Survey of Queensland",
 "location": {
  "lat": -19.087833,
  "lon": 138.774194
 },
 "data": {
  "type": "AMT",
  "n_periods": 100,
  "period_min_s": 0.0001,
  "period_max_s": 2912.71072
 },
 "diagnostics": {
  "median_relative_error": 0.001,
  "remote_reference": true,
  "tipper_available": true,
  "completeness_smoothness_diagnostic": {
   "value": 4.9,
   "basis": "e",
   "note": "not a quality or geological-value judgement"
  },
  "classification": "2-D",
  "skew_beta_median_deg": 2.1,
  "pct_periods_3d": 39,
  "method": "phase-tensor (Caldwell 2004)",
  "note": "screening diagnostic, not an interpretation product"
 },
 "processing": {
  "software": "EMpower",
  "algorithm": null,
  "remote_reference": true,
  "remote_site": "RVL2035",
  "file_written_by": {
   "name": "EMpower",
   "version": "v1.48.1.2"
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  "note": "PROJECT NAME: Riversleigh\nUNIQUE ID: {aded97ee-85e8-45bb-b4b1-907fccb97617}\nPROCESS DATE: 2020-10-17 19:30\nDURATION: 20 h 31 m 49 s \nDECLINATION: 5°\nCOORDINATES: -19° 5' 16.2\", 138° 46' 27.1\"\nGPS (MIN - MAX): 8 - 14\nTEMPERATURE (MIN - MAX): 39° - 57°\nCOMB FILTER: 50HZ\nFINE ROBUST: NONE\nEDITING WORKBENCH\nTOTOAL REJECTED CROSSPOWERS: 4.9430%\nROBUST ALGORITHM: Multiple Coherence, ATTACK: 0.35, RATIO: 35% \nSTATIONS\nELECTRICS\nRECORDING ID: 10195_2020-10-16-003211\nINSTRUMENT TYPE: MTU-5C\nSTATION NAME: RVL1020\nOPERATOR: NM\nAZIMUTH: 0\nEX\nTAG: E1\nLENGTH: 80 [m]\nAC: 1.24612 [V]\nDC: 0.00747681 [V]\nNEGATIVE RES: 304.436 [Ω]\nPOSITIVE RES: 434.028 [Ω]\nSATURATION: 0.000135302%\nMIN VALUE: -0.625 [V]\nMAX VALUE: 0.621122 [V]\nEY\nTAG: E2\nLENGTH: 80 [m]\nAC: 1.25 [V]\nDC: -0.00137329 [V]\nNEGATIVE RES: 375.719 [Ω]\nPOSITIVE RES: 291.887 [Ω]\nSATURATION: 0.000135302%\nMIN VALUE: -0.625 [V]\nMAX VALUE: 0.625 [V]\nMAGNETICS\nRECORDING ID: 10195_2020-10-16-003211\nINSTRUMENT TYPE: MTU-5C\nSTATION NAME: RVL1020\nOPERATOR: NM\nAZIMUTH: 0\nHX\nTAG: H1\nSENSOR TYPE: MTC-150\nDETECTED SENSOR TYPE: MTC-150\nAC: 0.627785 [V]\nDC: 0.00823975 [V]\nCAL NAME: 57016_5F531F89.scal\nSENSOR SERIAL: 57016\nSATURATION: 0 %\nMIN VALUE: -0.34529 [V]\nMAX VALUE: 0.282495 [V]\nHY\nTAG: H2\nSENSOR TYPE: MTC-150\nDETECTED SENSOR TYPE: MTC-150\nAC: 0.433816 [V]\nDC: -0.0482178 [V]\nCAL NAME: 54879_5F531F89.scal\nSENSOR SERIAL: 54879\nSATURATION: 0 %\nMIN VALUE: -0.189422 [V]\nMAX VALUE: 0.244394 [V]\nHZ\nTAG: H3\nSENSOR TYPE: MTC-150\nDETECTED SENSOR TYPE: MTC-150\nAC: 2.49516 [V]\nDC: -0.0135803 [V]\nCAL NAME: 53229_5F531EBF.scal\nSENSOR SERIAL: 53229\nSATURATION: 0.440609 %\nMIN VALUE: -1.24516 [V]\nMAX VALUE: 1.25 [V]\nREFERENCE\nRECORDING ID: 10118_2020-10-16-040651\nINSTRUMENT TYPE: MTU-5C\nSTATION NAME: RVL2035\nOPERATOR: NM\nAZIMUTH: 0\nRX\nTAG: H1\nSENSOR TYPE: MTC-150\nDETECTED SENSOR TYPE: MTC-150\nAC: 0.680667 [V]\nDC: 0.0184631 [V]\nCAL NAME: 54878_5F531A95.scal\nSENSOR SERIAL: 54878\nSATURATION: 0 %\nMIN VALUE: -0.359706 [V]\nMAX VALUE: 0.320962 [V]\nRY\nTAG: H2\nSENSOR TYPE: MTC-150\nDETECTED SENSOR TYPE: MTC-150\nAC: 2.15421 [V]\nDC: 0.00961304 [V]\nCAL NAME: 57012_5F531A95.scal\nSENSOR SERIAL: 57012\nSATURATION: 0.188881 %\nMIN VALUE: -1.24505 [V]\nMAX VALUE: 0.909165 [V]"
 },
 "distribution": {
  "edi_available": true,
  "license": "CC-BY",
  "edi_path": "edi/lawn-hill-riversleigh-2020/RVL1020.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": "RVL1020.edi",
  "input_sha256": "ab65ead0f20549bb99809c3b9ca8c39f0f69fa478b7572b0e98bdd0a10a6a215",
  "source": {
   "original_filename": "RVL1020.edi",
   "source_record_id": "collection.zip!mt100208/Riversleigh MT Data.zip!Report/Appendix III - Final Data (EDI + Curve Plots)/RVL1020.edi"
  }
 },
 "coordinate_qc": null,
 "canonical_conditioning": null,
 "frame": {
  "convention_check": {
   "detail": null,
   "n_periods_used": 94,
   "phs_xy_median_deg": 42.29,
   "phs_yx_median_deg": -133.95,
   "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,
  "survey_frame_note": "frame: mixed declared frames across stations: -40°…0° — each station is served in its own declared acquisition frame; this survey does not share one frame (nothing de-rotated)"
 },
 "resources": [
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   "id": "edi",
   "kind": "transfer_function",
   "format": "edi",
   "provenance_role": "source",
   "representation_role": "original",
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  {
   "id": "edi-zip",
   "kind": "archive",
   "format": "zip",
   "path": "bundles/lawn-hill-riversleigh-2020-edi.zip"
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 ]
}