{
 "ocl_version": "0.1.0",
 "name": "Burg",
 "slug": "burg-2",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 23.67746206226684,
   "diagnostic": true,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 565.0,
   "end_distance_m": 567.0,
   "start_elevation_m": 1673.697775455005,
   "end_elevation_m": 1674.1713246962504,
   "min_gradient_pct": -8.379527916360985
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 20.047682366127145,
   "diagnostic": true,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 564.0,
   "end_distance_m": 567.0,
   "start_elevation_m": 1673.5698942252666,
   "end_elevation_m": 1674.1713246962504,
   "min_gradient_pct": -3.88657530997231
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 16.61726372076828,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 70.0,
   "end_distance_m": 75.0,
   "start_elevation_m": 1627.4106423841952,
   "end_elevation_m": 1628.2415055702336,
   "min_gradient_pct": -1.924484597097944
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 15.266349472669845,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1304.0,
   "end_distance_m": 1314.0,
   "start_elevation_m": 1748.8364931233887,
   "end_elevation_m": 1750.3631280706556,
   "min_gradient_pct": 0.44231876935782566
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 14.17473970007336,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1528.0,
   "end_distance_m": 1548.0,
   "start_elevation_m": 1778.0712563246113,
   "end_elevation_m": 1780.906204264626,
   "min_gradient_pct": 0.480354896820927
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 14.12041221871732,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1515.0,
   "end_distance_m": 1540.0,
   "start_elevation_m": 1776.2406084736876,
   "end_elevation_m": 1779.770711528367,
   "min_gradient_pct": 0.6941493167068984
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 13.757930494340144,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1515.0,
   "end_distance_m": 1565.0,
   "start_elevation_m": 1776.2406084736876,
   "end_elevation_m": 1783.1195737208577,
   "min_gradient_pct": 3.4748291525329478
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 13.412318516522873,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1450.0,
   "end_distance_m": 1550.0,
   "start_elevation_m": 1767.735702327239,
   "end_elevation_m": 1781.148020843762,
   "min_gradient_pct": 6.682930384135261
  }
 ],
 "shape": {
  "ascent_concentration": 0.311,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 527.0,
  "shape_class": "sustained"
 },
 "length_m": 1874.632864368088,
 "start_elevation_m": 1620.568808830049,
 "end_elevation_m": 1818.352370544929,
 "endpoint_gain_m": 197.78356171488008,
 "overall_gradient_pct": 10.550522476919774,
 "accumulated_ascent_m": 198.10921833063753,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 16.61726372076828,
   "start_distance_m": 70.0,
   "end_distance_m": 75.0,
   "midpoint_distance_m": 72.5,
   "start_elevation_m": 1627.4106423841952,
   "end_elevation_m": 1628.2415055702336,
   "start_xy": [
    4521520.955291613,
    2661034.524533079
   ],
   "end_xy": [
    4521516.184261465,
    2661033.028781987
   ]
  },
  "max_10m": {
   "gradient_pct": 15.266349472669845,
   "start_distance_m": 1304.0,
   "end_distance_m": 1314.0,
   "midpoint_distance_m": 1309.0,
   "start_elevation_m": 1748.8364931233887,
   "end_elevation_m": 1750.3631280706556,
   "start_xy": [
    4520926.812735812,
    2660990.1132422034
   ],
   "end_xy": [
    4520918.800233693,
    2660996.096536429
   ]
  },
  "max_20m": {
   "gradient_pct": 14.17473970007336,
   "start_distance_m": 1528.0,
   "end_distance_m": 1548.0,
   "midpoint_distance_m": 1538.0,
   "start_elevation_m": 1778.0712563246113,
   "end_elevation_m": 1780.906204264626,
   "start_xy": [
    4520890.686490521,
    2661197.0650362107
   ],
   "end_xy": [
    4520884.0233836025,
    2661215.825880465
   ]
  },
  "max_25m": {
   "gradient_pct": 14.12041221871732,
   "start_distance_m": 1515.0,
   "end_distance_m": 1540.0,
   "midpoint_distance_m": 1527.5,
   "start_elevation_m": 1776.2406084736876,
   "end_elevation_m": 1779.770711528367,
   "start_xy": [
    4520891.1226646,
    2661184.2182785072
   ],
   "end_xy": [
    4520887.197352901,
    2661208.4824535474
   ]
  },
  "max_50m": {
   "gradient_pct": 13.757930494340144,
   "start_distance_m": 1515.0,
   "end_distance_m": 1565.0,
   "midpoint_distance_m": 1540.0,
   "start_elevation_m": 1776.2406084736876,
   "end_elevation_m": 1783.1195737208577,
   "start_xy": [
    4520891.1226646,
    2661184.2182785072
   ],
   "end_xy": [
    4520874.48656997,
    2661229.896757355
   ]
  },
  "max_100m": {
   "gradient_pct": 13.412318516522873,
   "start_distance_m": 1450.0,
   "end_distance_m": 1550.0,
   "midpoint_distance_m": 1500.0,
   "start_elevation_m": 1767.735702327239,
   "end_elevation_m": 1781.148020843762,
   "start_xy": [
    4520877.555453463,
    2661120.747295703
   ],
   "end_xy": [
    4520882.915875742,
    2661217.4892272134
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -1.924484597097944,
   "start_distance_m": 1125.0,
   "end_distance_m": 1130.0,
   "midpoint_distance_m": 1127.5,
   "start_elevation_m": 1730.8907972098361,
   "end_elevation_m": 1730.7945729799812,
   "start_xy": [
    4521042.355869137,
    2661030.2770679453
   ],
   "end_xy": [
    4521047.009177374,
    2661032.106472892
   ]
  },
  "min_10m": {
   "gradient_pct": 0.44231876935782566,
   "start_distance_m": 1863.0,
   "end_distance_m": 1873.0,
   "midpoint_distance_m": 1868.0,
   "start_elevation_m": 1818.3006746657766,
   "end_elevation_m": 1818.3449065427124,
   "start_xy": [
    4520702.177036728,
    2661456.0366841075
   ],
   "end_xy": [
    4520695.969591597,
    2661463.8768132487
   ]
  },
  "min_20m": {
   "gradient_pct": 0.480354896820927,
   "start_distance_m": 1854.0,
   "end_distance_m": 1874.0,
   "midpoint_distance_m": 1864.0,
   "start_elevation_m": 1818.2522970906734,
   "end_elevation_m": 1818.3483680700376,
   "start_xy": [
    4520709.586109491,
    2661451.7937570955
   ],
   "end_xy": [
    4520695.348847085,
    2661464.660826163
   ]
  },
  "min_25m": {
   "gradient_pct": 0.6941493167068984,
   "start_distance_m": 1849.0,
   "end_distance_m": 1874.0,
   "midpoint_distance_m": 1861.5,
   "start_elevation_m": 1818.174830740861,
   "end_elevation_m": 1818.3483680700376,
   "start_xy": [
    4520714.432467688,
    2661450.563792776
   ],
   "end_xy": [
    4520695.348847085,
    2661464.660826163
   ]
  },
  "min_50m": {
   "gradient_pct": 3.4748291525329478,
   "start_distance_m": 1824.0,
   "end_distance_m": 1874.0,
   "midpoint_distance_m": 1849.0,
   "start_elevation_m": 1816.6109534937711,
   "end_elevation_m": 1818.3483680700376,
   "start_xy": [
    4520737.002435935,
    2661440.899501698
   ],
   "end_xy": [
    4520695.348847085,
    2661464.660826163
   ]
  },
  "min_100m": {
   "gradient_pct": 6.682930384135261,
   "start_distance_m": 179.0,
   "end_distance_m": 279.0,
   "midpoint_distance_m": 229.0,
   "start_elevation_m": 1636.9806370292313,
   "end_elevation_m": 1643.6635674133665,
   "start_xy": [
    4521420.390028944,
    2661007.3531669485
   ],
   "end_xy": [
    4521331.57481102,
    2660964.5267203045
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 23.67746206226684,
   "start_distance_m": 565.0,
   "end_distance_m": 567.0,
   "midpoint_distance_m": 566.0,
   "start_elevation_m": 1673.697775455005,
   "end_elevation_m": 1674.1713246962504,
   "start_xy": [
    4521100.137737685,
    2660855.3473608433
   ],
   "end_xy": [
    4521098.2695134785,
    2660854.6334012416
   ]
  },
  "max_3m": {
   "gradient_pct": 20.047682366127145,
   "start_distance_m": 564.0,
   "end_distance_m": 567.0,
   "midpoint_distance_m": 565.5,
   "start_elevation_m": 1673.5698942252666,
   "end_elevation_m": 1674.1713246962504,
   "start_xy": [
    4521101.010173678,
    2660855.8219391853
   ],
   "end_xy": [
    4521098.2695134785,
    2660854.6334012416
   ]
  }
 },
 "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": {
  "overhead_obstruction": {
   "obstruction_threshold_m": 2.0,
   "obstructed_fraction": 0.188,
   "obstruction_max_height_m": 21.33,
   "flagged_windows_m": [
    2,
    3,
    5
   ]
  },
  "review": [],
  "extent": [
   "may_start_earlier"
  ]
 },
 "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_E4520-N2660.tif",
   "data/cache/at/bev-als_dtm_E4520-N2661.tif",
   "data/cache/at/bev-als_dtm_E4521-N2660.tif",
   "data/cache/at/bev-als_dtm_E4521-N2661.tif"
  ],
  "calculated_at": "2026-09-12T23:42:23+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": [
   "E4520-N2660",
   "E4520-N2661",
   "E4521-N2660",
   "E4521-N2661"
  ],
  "elevation_blocks": [
   "N2650000E4500000@2022-09-15"
  ],
  "climb_origin": "discovered",
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing"
 },
 "area": {
  "place": "Kals am Gro\u00dfglockner",
  "county": "Tirol",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}