{
 "schema": "ausmt-station",
 "version": "0.1",
 "ausmt_id": "au.seahorse-2022-23.ROM004",
 "station": "ROM004",
 "survey": "Seahorse Magnetotelluric Survey 2022-23 (BHP, released by the Geological Survey of Western Australia)",
 "survey_id": "seahorse-2022-23",
 "country": "Australia",
 "organisation": "Geological Survey of Western Australia",
 "location": {
  "lat": -32.021,
  "lon": 125.048333
 },
 "data": {
  "type": "AMT",
  "n_periods": 104,
  "period_min_s": 0.0001,
  "period_max_s": 5825.42144
 },
 "diagnostics": {
  "median_relative_error": 0.0,
  "remote_reference": true,
  "tipper_available": true,
  "completeness_smoothness_diagnostic": {
   "value": 4.9,
   "basis": "e",
   "note": "not a quality or geological-value judgement"
  },
  "classification": "1-D",
  "skew_beta_median_deg": 0.3,
  "pct_periods_3d": 14,
  "method": "phase-tensor (Caldwell 2004)",
  "note": "screening diagnostic, not an interpretation product"
 },
 "processing": {
  "software": "EMpower",
  "algorithm": null,
  "remote_reference": true,
  "remote_site": "REMOTE025",
  "file_written_by": {
   "name": "EMpower",
   "version": "v1.54.2.5"
  },
  "note": "PROJECT NAME: BHP_Seahorse\nUNIQUE ID: {473ea5c1-3aa8-4069-a2fc-55f31d615daa}\nPROCESS DATE: 2022-06-11 13:01\nDURATION: 43 h 20 m 53 s \nDECLINATION: 0°\nCOORDINATES: -32° 1' 15.6\", 125° 2' 54.0\"\nGPS (MIN - MAX): 7 - 13\nTEMPERATURE (MIN - MAX): 21° - 34°\nCOMB FILTER: 50HZ\nFINE ROBUST: NONE\nEDITING WORKBENCH\nTOTOAL REJECTED CROSSPOWERS: 18.0401%\nROBUST ALGORITHM: Multiple Coherence, ATTACK: 0.85, RATIO: 35% \nSTATIONS\nELECTRICS\nRECORDING ID: 15025_2022-06-02-071008\nINSTRUMENT TYPE: MTU-5C\nSTATION NAME: ROM004\nOPERATOR: SW\nAZIMUTH: 0\nEX\nTAG: E1\nLENGTH: 80 [m]\nAC: 0.416667 [V]\nDC: 0.0101852 [V]\nNEGATIVE RES: 399.701 [Ω]\nPOSITIVE RES: 449.411 [Ω]\nSATURATION: 0.0016661%\nMIN VALUE: -0.208333 [V]\nMAX VALUE: 0.208333 [V]\nEY\nTAG: E2\nLENGTH: 80 [m]\nAC: 0.416667 [V]\nDC: -0.0018692 [V]\nNEGATIVE RES: 251.628 [Ω]\nPOSITIVE RES: 529.905 [Ω]\nSATURATION: 0.000576727%\nMIN VALUE: -0.208333 [V]\nMAX VALUE: 0.208333 [V]\nMAGNETICS\nRECORDING ID: 15025_2022-06-02-071008\nINSTRUMENT TYPE: MTU-5C\nSTATION NAME: ROM004\nOPERATOR: SW\nAZIMUTH: 0\nHX\nTAG: H1\nSENSOR TYPE: MTC-150\nDETECTED SENSOR TYPE: MTC-150\nAC: 0.775735 [V]\nDC: -0.0117493 [V]\nCAL NAME: 57246_62807B44.scal\nSENSOR SERIAL: 57246\nSATURATION: 0 %\nMIN VALUE: -0.419552 [V]\nMAX VALUE: 0.356183 [V]\nHY\nTAG: H2\nSENSOR TYPE: MTC-150\nDETECTED SENSOR TYPE: MTC-150\nAC: 0.401554 [V]\nDC: -0.00167847 [V]\nCAL NAME: 57249_62807B44.scal\nSENSOR SERIAL: 57249\nSATURATION: 0 %\nMIN VALUE: -0.222274 [V]\nMAX VALUE: 0.17928 [V]\nHZ\nTAG: H3\nSENSOR TYPE: MTC-150\nDETECTED SENSOR TYPE: MTC-150\nAC: 0.0157393 [V]\nDC: 0.0312805 [V]\nCAL NAME: 53314_62807B44.scal\nSENSOR SERIAL: 53314\nSATURATION: 0 %\nMIN VALUE: -0.00974854 [V]\nMAX VALUE: 0.00599076 [V]\nREFERENCE\nRECORDING ID: 10126_2022-06-01-230835\nINSTRUMENT TYPE: MTU-5C\nSTATION NAME: REMOTE025\nOPERATOR: SW\nAZIMUTH: 0\nRX\nTAG: H1\nSENSOR TYPE: MTC-150\nDETECTED SENSOR TYPE: MTC-150\nAC: 0.625 [V]\nDC: -0.0370789 [V]\nCAL NAME: 57226_62807BBC.scal\nSENSOR SERIAL: 57226\nSATURATION: 0.000320404 %\nMIN VALUE: -0.3125 [V]\nMAX VALUE: 0.3125 [V]\nRY\nTAG: H1\nSENSOR TYPE: MTC-150\nDETECTED SENSOR TYPE: MTC-150\nAC: 0.625 [V]\nDC: -0.0370789 [V]\nCAL NAME: 57236_62807BBC.scal\nSENSOR SERIAL: 57226\nSATURATION: 0.000320404 %\nMIN VALUE: -0.3125 [V]\nMAX VALUE: 0.3125 [V]"
 },
 "distribution": {
  "edi_available": true,
  "license": "CC-BY-4.0",
  "edi_path": "edi/seahorse-2022-23/ROM004.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": "ROM004.edi",
  "input_sha256": "5a0c8d36dd01f9138099d59d96597064fdba27ce114f99ac4c28da24e430e2b6",
  "source": {
   "original_filename": "ROM004.edi",
   "source_record_id": "BHP_Seahorse_2022_MT.zip!BHP_Seahorse_2022_MT/BHP Seahorse 2022 MT Final Report/Appendix III Final Data (EDI files + plots)/EDI files/Roma/ROM004.edi"
  }
 },
 "coordinate_qc": null,
 "canonical_conditioning": null,
 "frame": {
  "convention_check": {
   "detail": null,
   "n_periods_used": 100,
   "phs_xy_median_deg": 44.55,
   "phs_yx_median_deg": -133.52,
   "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
 },
 "resources": [
  {
   "id": "edi",
   "kind": "transfer_function",
   "format": "edi",
   "provenance_role": "source",
   "representation_role": "original",
   "path": "edi/seahorse-2022-23/ROM004.edi"
  },
  {
   "id": "edi-zip",
   "kind": "archive",
   "format": "zip",
   "path": "bundles/seahorse-2022-23-edi.zip"
  }
 ]
}