{
  "radar": "MACAE",
  "radar_id": "9915MAC",
  "lat": -22.405832,
  "lon": -41.860462,
  "height_m": 81.0,
  "band": "S",
  "wavelength_cm": 10.7,
  "system": "EEC-DWSR-93C",
  "method": "terrain_4_3_earth_PBB",
  "dem": "toporj+SRTM+gmted",
  "landmask": "landuse_30s_with_lakes",
  "beamwidth_deg": 1.0,
  "elevation_deg": 0.5,
  "cbb_threshold": 0.5,
  "refraction_k": 1.3333333333333333,
  "blocked_sectors_deg": [
    [
      54,
      71
    ],
    [
      254,
      262
    ],
    [
      279,
      339
    ]
  ],
  "blocked_sectors_simulated_deg": [
    [
      224,
      226
    ],
    [
      230,
      236
    ],
    [
      254,
      38
    ]
  ],
  "blocked_sectors_note": "blocked_sectors_deg is the operational mask (data-derived dead sectors from audit AU5-6, used by --blocked-az and the WRFDA converter). blocked_sectors_simulated_deg is the terrain-only simulation from this run; it corroborates the western sectors and is expected to diverge over the NE ocean sector (man-made/clutter, not terrain). A simulated sector with az_start>az_end wraps through North (e.g. [254,38] = 254..359 + 0..38).",
  "generated_by": "radar_beam_blockage.py",
  "git_commit": "1f85e88"
}