{
 "ocl_version": "0.1.0",
 "name": "Zafern",
 "slug": "zafern",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 29.816547464531595,
   "diagnostic": true,
   "flags": [
    "structure_excluded",
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 365.0,
   "end_distance_m": 367.0,
   "start_elevation_m": 1423.6943880586493,
   "end_elevation_m": 1424.29071900794,
   "min_gradient_pct": -22.80947669366924,
   "suppressed_max_gradient_pct": 75.39986177876017,
   "suppressed_location_m": [
    0.0,
    2.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 25.922331533668814,
   "diagnostic": true,
   "flags": [
    "structure_excluded",
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 365.0,
   "end_distance_m": 368.0,
   "start_elevation_m": 1423.6943880586493,
   "end_elevation_m": 1424.4720580046594,
   "min_gradient_pct": -14.759954602936887,
   "suppressed_max_gradient_pct": 62.33161538825698,
   "suppressed_location_m": [
    0.0,
    3.0
   ]
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 23.705836648268814,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 524.0,
   "end_distance_m": 529.0,
   "start_elevation_m": 1446.2888823729268,
   "end_elevation_m": 1447.4741742053402,
   "min_gradient_pct": -12.540220525438599,
   "suppressed_max_gradient_pct": 43.51041113462543,
   "suppressed_location_m": [
    0.0,
    5.0
   ]
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 20.88732799518766,
   "diagnostic": false,
   "flags": [
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 525.0,
   "end_distance_m": 535.0,
   "start_elevation_m": 1446.4935104783308,
   "end_elevation_m": 1448.5822432778496,
   "min_gradient_pct": -11.946298688951629,
   "suppressed_max_gradient_pct": 27.444234898921422,
   "suppressed_location_m": [
    221.0,
    231.0
   ]
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 18.83061720880505,
   "diagnostic": false,
   "flags": [
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 520.0,
   "end_distance_m": 540.0,
   "start_elevation_m": 1445.6931214373099,
   "end_elevation_m": 1449.4592448790709,
   "min_gradient_pct": -3.0206534164631194,
   "suppressed_max_gradient_pct": 23.5602072670531,
   "suppressed_location_m": [
    212.0,
    232.0
   ]
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 18.14628697850094,
   "diagnostic": false,
   "flags": [
    "texture_excluded"
   ],
   "start_distance_m": 2419.0,
   "end_distance_m": 2444.0,
   "start_elevation_m": 1654.51122160987,
   "end_elevation_m": 1659.0477933544953,
   "min_gradient_pct": -1.6017658958435277,
   "suppressed_max_gradient_pct": 22.25814457051456,
   "suppressed_location_m": [
    207.0,
    232.0
   ]
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 16.674252581867677,
   "diagnostic": false,
   "flags": [
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 2401.0,
   "end_distance_m": 2451.0,
   "start_elevation_m": 1651.8180808683626,
   "end_elevation_m": 1660.1552071592964,
   "min_gradient_pct": 1.2944567339950481,
   "suppressed_max_gradient_pct": 19.746363068753,
   "suppressed_location_m": [
    182.0,
    232.0
   ]
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 15.220167345099753,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 379.0,
   "end_distance_m": 479.0,
   "start_elevation_m": 1425.8151946891207,
   "end_elevation_m": 1441.0353620342205,
   "min_gradient_pct": 2.568309976306182
  }
 ],
 "shape": {
  "ascent_concentration": 0.301,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 284.0,
  "shape_class": "sustained"
 },
 "length_m": 3465.0872388096705,
 "start_elevation_m": 1377.9539845873005,
 "end_elevation_m": 1751.1581216845987,
 "endpoint_gain_m": 373.20413709729814,
 "overall_gradient_pct": 10.770410999103778,
 "accumulated_ascent_m": 376.94070191906826,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 23.705836648268814,
   "start_distance_m": 524.0,
   "end_distance_m": 529.0,
   "midpoint_distance_m": 526.5,
   "start_elevation_m": 1446.2888823729268,
   "end_elevation_m": 1447.4741742053402,
   "start_xy": [
    4314491.538299583,
    2683278.0758624366
   ],
   "end_xy": [
    4314496.354456241,
    2683276.7324953824
   ]
  },
  "max_10m": {
   "gradient_pct": 20.88732799518766,
   "start_distance_m": 525.0,
   "end_distance_m": 535.0,
   "midpoint_distance_m": 530.0,
   "start_elevation_m": 1446.4935104783308,
   "end_elevation_m": 1448.5822432778496,
   "start_xy": [
    4314492.501530915,
    2683277.8071890255
   ],
   "end_xy": [
    4314501.897193384,
    2683274.439206155
   ]
  },
  "max_20m": {
   "gradient_pct": 18.83061720880505,
   "start_distance_m": 520.0,
   "end_distance_m": 540.0,
   "midpoint_distance_m": 530.0,
   "start_elevation_m": 1445.6931214373099,
   "end_elevation_m": 1449.4592448790709,
   "start_xy": [
    4314487.685374256,
    2683279.1505560796
   ],
   "end_xy": [
    4314506.508978627,
    2683272.5075134053
   ]
  },
  "max_25m": {
   "gradient_pct": 18.14628697850094,
   "start_distance_m": 2419.0,
   "end_distance_m": 2444.0,
   "midpoint_distance_m": 2431.5,
   "start_elevation_m": 1654.51122160987,
   "end_elevation_m": 1659.0477933544953,
   "start_xy": [
    4315152.191819829,
    2683148.0972035537
   ],
   "end_xy": [
    4315171.578082922,
    2683163.864235333
   ]
  },
  "max_50m": {
   "gradient_pct": 16.674252581867677,
   "start_distance_m": 2401.0,
   "end_distance_m": 2451.0,
   "midpoint_distance_m": 2426.0,
   "start_elevation_m": 1651.8180808683626,
   "end_elevation_m": 1660.1552071592964,
   "start_xy": [
    4315139.926290231,
    2683134.941343547
   ],
   "end_xy": [
    4315176.153390323,
    2683169.100165484
   ]
  },
  "max_100m": {
   "gradient_pct": 15.220167345099753,
   "start_distance_m": 379.0,
   "end_distance_m": 479.0,
   "midpoint_distance_m": 429.0,
   "start_elevation_m": 1425.8151946891207,
   "end_elevation_m": 1441.0353620342205,
   "start_xy": [
    4314367.099934758,
    2683341.8973552594
   ],
   "end_xy": [
    4314447.214223271,
    2683285.5251410753
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -12.540220525438599,
   "start_distance_m": 49.0,
   "end_distance_m": 54.0,
   "midpoint_distance_m": 51.5,
   "start_elevation_m": 1385.2264650872237,
   "end_elevation_m": 1384.5994540609518,
   "start_xy": [
    4314248.477259942,
    2683537.317560595
   ],
   "end_xy": [
    4314253.472423952,
    2683537.537416282
   ]
  },
  "min_10m": {
   "gradient_pct": -11.946298688951629,
   "start_distance_m": 49.0,
   "end_distance_m": 59.0,
   "midpoint_distance_m": 54.0,
   "start_elevation_m": 1385.2264650872237,
   "end_elevation_m": 1384.0318352183285,
   "start_xy": [
    4314248.477259942,
    2683537.317560595
   ],
   "end_xy": [
    4314258.460935948,
    2683537.837258382
   ]
  },
  "min_20m": {
   "gradient_pct": -3.0206534164631194,
   "start_distance_m": 48.0,
   "end_distance_m": 68.0,
   "midpoint_distance_m": 58.0,
   "start_elevation_m": 1385.197693762001,
   "end_elevation_m": 1384.5935630787085,
   "start_xy": [
    4314248.720471874,
    2683537.2313439236
   ],
   "end_xy": [
    4314267.394083284,
    2683538.9321915633
   ]
  },
  "min_25m": {
   "gradient_pct": -1.6017658958435277,
   "start_distance_m": 140.0,
   "end_distance_m": 165.0,
   "midpoint_distance_m": 152.5,
   "start_elevation_m": 1394.8276883952585,
   "end_elevation_m": 1394.4272469212976,
   "start_xy": [
    4314338.333330136,
    2683533.883115846
   ],
   "end_xy": [
    4314359.499685575,
    2683523.4143104167
   ]
  },
  "min_50m": {
   "gradient_pct": 1.2944567339950481,
   "start_distance_m": 1578.0,
   "end_distance_m": 1628.0,
   "midpoint_distance_m": 1603.0,
   "start_elevation_m": 1558.4911661317412,
   "end_elevation_m": 1559.1383944987388,
   "start_xy": [
    4314964.242803846,
    2682987.5533053786
   ],
   "end_xy": [
    4314979.909577302,
    2682942.357079151
   ]
  },
  "min_100m": {
   "gradient_pct": 2.568309976306182,
   "start_distance_m": 1529.0,
   "end_distance_m": 1629.0,
   "midpoint_distance_m": 1579.0,
   "start_elevation_m": 1556.610800348411,
   "end_elevation_m": 1559.1791103247172,
   "start_xy": [
    4314955.418288851,
    2683029.247342931
   ],
   "end_xy": [
    4314980.506709101,
    2682941.557484079
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 29.816547464531595,
   "start_distance_m": 365.0,
   "end_distance_m": 367.0,
   "midpoint_distance_m": 366.0,
   "start_elevation_m": 1423.6943880586493,
   "end_elevation_m": 1424.29071900794,
   "start_xy": [
    4314355.84472638,
    2683349.9630319653
   ],
   "end_xy": [
    4314357.714333906,
    2683349.2527026776
   ]
  },
  "max_3m": {
   "gradient_pct": 25.922331533668814,
   "start_distance_m": 365.0,
   "end_distance_m": 368.0,
   "midpoint_distance_m": 366.5,
   "start_elevation_m": 1423.6943880586493,
   "end_elevation_m": 1424.4720580046594,
   "start_xy": [
    4314355.84472638,
    2683349.9630319653
   ],
   "end_xy": [
    4314358.62989162,
    2683348.860990815
   ]
  }
 },
 "diagnostic_note": "Windows <=3 m are at raster-noise scale (1-sigma raster noise alone is roughly +/-7 pp at 2 m and +/-5 pp at 3 m on a 1 m DTM). Diagnostic use only: never a headline or ranking value.",
 "quality_summary": {
  "structure_suppression": {
   "masked_fraction": 0.013,
   "windows_resited": [
    2.0,
    3.0,
    5.0
   ],
   "windows_unresolved": []
  },
  "texture_suppression": {
   "masked_fraction": 0.022,
   "windows_resited": [
    2.0,
    3.0,
    5.0,
    10.0,
    20.0,
    25.0,
    50.0
   ],
   "windows_unresolved": []
  },
  "texture_windows": {
   "rounds": 1,
   "windows_masked": [
    {
     "window_m": 25.0,
     "start_m": 207.0,
     "end_m": 232.0,
     "raw_pct": 22.26,
     "reason": "hump"
    },
    {
     "window_m": 20.0,
     "start_m": 212.0,
     "end_m": 232.0,
     "raw_pct": 23.56,
     "reason": "hump"
    },
    {
     "window_m": 10.0,
     "start_m": 221.0,
     "end_m": 231.0,
     "raw_pct": 27.44,
     "reason": "hump"
    }
   ],
   "advisory": [],
   "unresolved": []
  },
  "overhead_obstruction": {
   "obstruction_threshold_m": 2.0,
   "obstructed_fraction": 0.078,
   "obstruction_max_height_m": 25.48,
   "flagged_windows_m": [
    2,
    3,
    5,
    10,
    20,
    50,
    100
   ]
  },
  "excluded_ranges_m": [
   [
    0.0,
    3.0
   ],
   [
    105.0,
    145.0
   ],
   [
    205.0,
    234.0
   ]
  ],
  "review": [],
  "extent": [
   "may_start_earlier",
   "may_continue_beyond_end"
  ]
 },
 "provenance": {
  "analysis_version": "0.1.0",
  "sample_interval_m": 1.0,
  "interpolation": "bilinear",
  "smoothing": "none",
  "gradient_windows_m": [
   5.0,
   10.0,
   20.0,
   25.0,
   50.0,
   100.0
  ],
  "diagnostic_windows_m": [
   2.0,
   3.0
  ],
  "elevation_crs": "EPSG:3035",
  "elevation_resolution_m": 1.0,
  "elevation_tiles": [
   "data/cache/at/bev-als_dtm_E4314-N2682.tif",
   "data/cache/at/bev-als_dtm_E4314-N2683.tif",
   "data/cache/at/bev-als_dtm_E4315-N2682.tif",
   "data/cache/at/bev-als_dtm_E4315-N2683.tif"
  ],
  "calculated_at": "2026-09-12T23:54:52+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/austria-2026-09-11-batch-at-run4-260912.osm.pbf",
  "osm_snapshot": "",
  "run_id": "at-run4-260912",
  "elevation_provider": "BEV ALS DTM 1 m",
  "elevation_licence": "Creative Commons Attribution 4.0 (CC BY 4.0) \u2014 \u00a9 BEV / L\u00e4nder, data.gv.at",
  "elevation_dataset": "ALS DTM H\u00f6henraster 1 m (Bundesamt f\u00fcr Eich- und Vermessungswesen with the L\u00e4nder), EPSG:3035",
  "elevation_tile_ids": [
   "E4314-N2682",
   "E4314-N2683",
   "E4315-N2682",
   "E4315-N2683"
  ],
  "elevation_blocks": [
   "N2650000E4300000@2022-09-15"
  ],
  "climb_origin": "discovered",
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing"
 },
 "area": {
  "place": "Fontanella",
  "county": "Vorarlberg",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}