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{
  "schema": "trackformer-1.2-report-figures-v1",
  "documentation_update_date": "2026-10-18",
  "scope": "Chinese research report plus approved text and figure amendments; existing figures copied without new forecasts or training",
  "report_snapshot_sha256": "0e3f0ecd5c44bbd24a09697d954d8b99882935f181a7faa57081c5203387ba47",
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  "forecast_members_per_case": 50,
  "map_lead_hours": 48,
  "map_comparison_grid_degrees": 2.5,
  "route_and_pressure_leads_hours": [6, 12, 18, 24, 30, 36, 42, 48, 54, 60, 66, 72, 78, 84, 90, 96, 102, 108, 114, 120],
  "reference_pressure": "NOAA NCEP analysis; source remains analysis despite simplified visible labels",
  "reference_track_and_central_pressure": "IBTrACS / JMA exact valid times",
  "coastline": "Natural Earth",
  "radius_source": "IBTrACS WP v04r01 USA_R34 quadrant records; observations only, not model predictions",
  "ibtracs_sha256": "47ba0d51dbd22d5fb3c93d50b35e11a74b911a4019c56d6bb3424a5992dbbbf0",
  "radius_units": "km = nautical miles * 1.852; missing values remain missing",
  "model_radius_head_available": false,
  "model_weights_changed": false,
  "model_or_truth_arrays_changed": false,
  "coordinates_or_times_shifted": false,
  "cases": [
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    {"name": "Mangkhut", "sid": "2018250N12170", "issue_utc": "2018-09-11T00:00:00Z", "forecast_backend": "saved Metal", "in_fitting_years": true, "saved_comparison_npz_sha256": "28b39089b8f03750773dba36c71bb9bf6505e5156a4bbdeb274624240210ee1f"},
    {"name": "Jebi", "sid": "2018239N11161", "issue_utc": "2018-08-31T00:00:00Z", "forecast_backend": "CPU", "in_fitting_years": true, "saved_comparison_npz_sha256": "f47385cae42b8e6c1e77e1b93d1f078b41ad2b080732a3283a4e4b62ee2044a4"}
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