{
 "ocl_version": "0.1.0",
 "name": "Lahn",
 "slug": "lahn",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 25.010189958987894,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 384.0,
   "end_distance_m": 386.0,
   "start_elevation_m": 918.3631779631297,
   "end_elevation_m": 918.8633817623095,
   "min_gradient_pct": -6.416608462069462
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 24.456076564266976,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 380.0,
   "end_distance_m": 383.0,
   "start_elevation_m": 917.4513584013825,
   "end_elevation_m": 918.1850406983106,
   "min_gradient_pct": -5.305888295375401
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 23.970918421732677,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 378.0,
   "end_distance_m": 383.0,
   "start_elevation_m": 916.9864947772239,
   "end_elevation_m": 918.1850406983106,
   "min_gradient_pct": -3.9506579395174413
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 23.303582014439144,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 376.0,
   "end_distance_m": 386.0,
   "start_elevation_m": 916.5330235608656,
   "end_elevation_m": 918.8633817623095,
   "min_gradient_pct": -3.870040241550896
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 22.871785917870966,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 366.0,
   "end_distance_m": 386.0,
   "start_elevation_m": 914.2890245787353,
   "end_elevation_m": 918.8633817623095,
   "min_gradient_pct": -3.2921895407986312
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 22.844410327189507,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 365.0,
   "end_distance_m": 390.0,
   "start_elevation_m": 914.0549014966211,
   "end_elevation_m": 919.7660040784185,
   "min_gradient_pct": -2.6775369691295055
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 20.364524330948825,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 347.0,
   "end_distance_m": 397.0,
   "start_elevation_m": 910.9542441871041,
   "end_elevation_m": 921.1365063525785,
   "min_gradient_pct": -0.6572572667646455
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 17.64771853102536,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 296.0,
   "end_distance_m": 396.0,
   "start_elevation_m": 903.3408919246556,
   "end_elevation_m": 920.9886104556809,
   "min_gradient_pct": 0.2861254744141206
  }
 ],
 "shape": {
  "ascent_concentration": 0.471,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 188.0,
  "shape_class": "stepped"
 },
 "length_m": 443.1107749996662,
 "start_elevation_m": 884.54567985686,
 "end_elevation_m": 924.78889709179,
 "endpoint_gain_m": 40.24321723492994,
 "overall_gradient_pct": 9.081976676139337,
 "accumulated_ascent_m": 41.2499291872266,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 23.970918421732677,
   "start_distance_m": 378.0,
   "end_distance_m": 383.0,
   "midpoint_distance_m": 380.5,
   "start_elevation_m": 916.9864947772239,
   "end_elevation_m": 918.1850406983106,
   "start_xy": [
    4488163.196843478,
    2683696.5687445127
   ],
   "end_xy": [
    4488166.595696331,
    2683700.235868628
   ]
  },
  "max_10m": {
   "gradient_pct": 23.303582014439144,
   "start_distance_m": 376.0,
   "end_distance_m": 386.0,
   "midpoint_distance_m": 381.0,
   "start_elevation_m": 916.5330235608656,
   "end_elevation_m": 918.8633817623095,
   "start_xy": [
    4488161.8373023365,
    2683695.101894866
   ],
   "end_xy": [
    4488168.635008044,
    2683702.4361430975
   ]
  },
  "max_20m": {
   "gradient_pct": 22.871785917870966,
   "start_distance_m": 366.0,
   "end_distance_m": 386.0,
   "midpoint_distance_m": 376.0,
   "start_elevation_m": 914.2890245787353,
   "end_elevation_m": 918.8633817623095,
   "start_xy": [
    4488155.039596629,
    2683687.767646635
   ],
   "end_xy": [
    4488168.635008044,
    2683702.4361430975
   ]
  },
  "max_25m": {
   "gradient_pct": 22.844410327189507,
   "start_distance_m": 365.0,
   "end_distance_m": 390.0,
   "midpoint_distance_m": 377.5,
   "start_elevation_m": 914.0549014966211,
   "end_elevation_m": 919.7660040784185,
   "start_xy": [
    4488154.359826058,
    2683687.0342218117
   ],
   "end_xy": [
    4488171.3540903265,
    2683705.36984239
   ]
  },
  "max_50m": {
   "gradient_pct": 20.364524330948825,
   "start_distance_m": 347.0,
   "end_distance_m": 397.0,
   "midpoint_distance_m": 372.0,
   "start_elevation_m": 910.9542441871041,
   "end_elevation_m": 921.1365063525785,
   "start_xy": [
    4488145.020277911,
    2683672.519853321
   ],
   "end_xy": [
    4488176.112484321,
    2683710.503816152
   ]
  },
  "max_100m": {
   "gradient_pct": 17.64771853102536,
   "start_distance_m": 296.0,
   "end_distance_m": 396.0,
   "midpoint_distance_m": 346.0,
   "start_elevation_m": 903.3408919246556,
   "end_elevation_m": 920.9886104556809,
   "start_xy": [
    4488174.58166381,
    2683632.3598128096
   ],
   "end_xy": [
    4488175.432713751,
    2683709.7703913287
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -3.9506579395174413,
   "start_distance_m": 52.0,
   "end_distance_m": 57.0,
   "midpoint_distance_m": 54.5,
   "start_elevation_m": 885.0325798763525,
   "end_elevation_m": 884.8350469793767,
   "start_xy": [
    4488333.505591136,
    2683448.0623683655
   ],
   "end_xy": [
    4488330.4647246245,
    2683452.0313897626
   ]
  },
  "min_10m": {
   "gradient_pct": -3.870040241550896,
   "start_distance_m": 52.0,
   "end_distance_m": 62.0,
   "midpoint_distance_m": 57.0,
   "start_elevation_m": 885.0325798763525,
   "end_elevation_m": 884.6455758521975,
   "start_xy": [
    4488333.505591136,
    2683448.0623683655
   ],
   "end_xy": [
    4488327.423858112,
    2683456.0004111603
   ]
  },
  "min_20m": {
   "gradient_pct": -3.2921895407986312,
   "start_distance_m": 51.0,
   "end_distance_m": 71.0,
   "midpoint_distance_m": 61.0,
   "start_elevation_m": 885.0657086518879,
   "end_elevation_m": 884.4072707437282,
   "start_xy": [
    4488334.11376444,
    2683447.268564086
   ],
   "end_xy": [
    4488322.069233893,
    2683463.2323131734
   ]
  },
  "min_25m": {
   "gradient_pct": -2.6775369691295055,
   "start_distance_m": 48.0,
   "end_distance_m": 73.0,
   "midpoint_distance_m": 60.5,
   "start_elevation_m": 885.0774057546844,
   "end_elevation_m": 884.408021512402,
   "start_xy": [
    4488335.938284347,
    2683444.8871512474
   ],
   "end_xy": [
    4488320.912723785,
    2683464.8640252715
   ]
  },
  "min_50m": {
   "gradient_pct": -0.6572572667646455,
   "start_distance_m": 39.0,
   "end_distance_m": 89.0,
   "midpoint_distance_m": 64.0,
   "start_elevation_m": 884.942239634119,
   "end_elevation_m": 884.6136110007367,
   "start_xy": [
    4488341.820217237,
    2683438.0781559213
   ],
   "end_xy": [
    4488311.660642925,
    2683477.917722056
   ]
  },
  "min_100m": {
   "gradient_pct": 0.2861254744141206,
   "start_distance_m": 1.0,
   "end_distance_m": 101.0,
   "midpoint_distance_m": 51.0,
   "start_elevation_m": 884.5676047850792,
   "end_elevation_m": 884.8537302594933,
   "start_xy": [
    4488366.904877366,
    2683409.534157844
   ],
   "end_xy": [
    4488304.317986929,
    2683487.4024702366
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 25.010189958987894,
   "start_distance_m": 384.0,
   "end_distance_m": 386.0,
   "midpoint_distance_m": 385.0,
   "start_elevation_m": 918.3631779631297,
   "end_elevation_m": 918.8633817623095,
   "start_xy": [
    4488167.275466902,
    2683700.9692934514
   ],
   "end_xy": [
    4488168.635008044,
    2683702.4361430975
   ]
  },
  "max_3m": {
   "gradient_pct": 24.456076564266976,
   "start_distance_m": 380.0,
   "end_distance_m": 383.0,
   "midpoint_distance_m": 381.5,
   "start_elevation_m": 917.4513584013825,
   "end_elevation_m": 918.1850406983106,
   "start_xy": [
    4488164.556384619,
    2683698.035594159
   ],
   "end_xy": [
    4488166.595696331,
    2683700.235868628
   ]
  }
 },
 "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": 0.038,
   "obstruction_max_height_m": 9.55,
   "flagged_windows_m": []
  },
  "review": [],
  "extent": [
   "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_E4488-N2683.tif"
  ],
  "calculated_at": "2026-09-11T07:25:05+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.osm.pbf",
  "osm_snapshot": "",
  "run_id": "at-run1-260911",
  "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": [
   "E4488-N2683"
  ],
  "elevation_blocks": [
   "N2650000E4450000@2022-09-15"
  ],
  "climb_origin": "discovered",
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing"
 },
 "area": {
  "place": "Wald im Pinzgau",
  "county": "Salzburg",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}