{
 "ocl_version": "0.1.0",
 "name": "Discovered lane (50.4678, -4.5334)",
 "slug": "discovered-lane-50-4678-4-5334",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 37.19536861251029,
   "diagnostic": true,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 433.0,
   "end_distance_m": 435.0,
   "start_elevation_m": 120.83962024754976,
   "end_elevation_m": 121.58352761979997,
   "min_gradient_pct": -60.6138934403198,
   "suppressed_max_gradient_pct": 79.83166323991142,
   "suppressed_location_m": [
    112.0,
    114.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 33.95612916992121,
   "diagnostic": true,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 432.0,
   "end_distance_m": 435.0,
   "start_elevation_m": 120.56484374470233,
   "end_elevation_m": 121.58352761979997,
   "min_gradient_pct": -54.9561497088798,
   "suppressed_max_gradient_pct": 64.14590210103579,
   "suppressed_location_m": [
    111.0,
    114.0
   ]
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 28.593237510437177,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 299.0,
   "end_distance_m": 304.0,
   "start_elevation_m": 101.60046610565405,
   "end_elevation_m": 103.03012798117591,
   "min_gradient_pct": -44.043271882576676,
   "suppressed_max_gradient_pct": 49.05922527417431,
   "suppressed_location_m": [
    110.0,
    115.0
   ]
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 24.824066010739188,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 295.0,
   "end_distance_m": 305.0,
   "start_elevation_m": 100.72614914078412,
   "end_elevation_m": 103.20855574185804,
   "min_gradient_pct": -25.93548362707878,
   "suppressed_max_gradient_pct": 27.251228442885633,
   "suppressed_location_m": [
    108.0,
    118.0
   ]
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 22.04033241606588,
   "diagnostic": false,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 285.0,
   "end_distance_m": 305.0,
   "start_elevation_m": 98.80048925864486,
   "end_elevation_m": 103.20855574185804,
   "min_gradient_pct": -18.036601522333342,
   "suppressed_max_gradient_pct": 24.539497245956312,
   "suppressed_location_m": [
    96.0,
    116.0
   ]
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 21.66189352035786,
   "diagnostic": false,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 279.0,
   "end_distance_m": 304.0,
   "start_elevation_m": 97.61465460108644,
   "end_elevation_m": 103.03012798117591,
   "min_gradient_pct": -16.92492196002206,
   "suppressed_max_gradient_pct": 24.213037101842588,
   "suppressed_location_m": [
    91.0,
    116.0
   ]
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 19.52613281854721,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 267.0,
   "end_distance_m": 317.0,
   "start_elevation_m": 95.33115396502674,
   "end_elevation_m": 105.09422037430035,
   "min_gradient_pct": -13.858872224217123
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 16.66001211103722,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 218.0,
   "end_distance_m": 318.0,
   "start_elevation_m": 88.56025200816546,
   "end_elevation_m": 105.22026411920268,
   "min_gradient_pct": -10.09490159848815
  }
 ],
 "shape": {
  "ascent_concentration": 0.416,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 162.0,
  "shape_class": "sustained"
 },
 "length_m": 1984.9802823650045,
 "start_elevation_m": 79.85530927453586,
 "end_elevation_m": 179.54194862365688,
 "endpoint_gain_m": 99.68663934912102,
 "overall_gradient_pct": 5.022046830125153,
 "accumulated_ascent_m": 133.0575948161603,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 28.593237510437177,
   "start_distance_m": 299.0,
   "end_distance_m": 304.0,
   "midpoint_distance_m": 301.5,
   "start_elevation_m": 101.60046610565405,
   "end_elevation_m": 103.03012798117591,
   "start_xy": [
    220166.76836923874,
    66162.43483568651
   ],
   "end_xy": [
    220161.80437295855,
    66161.83588583034
   ]
  },
  "max_10m": {
   "gradient_pct": 24.824066010739188,
   "start_distance_m": 295.0,
   "end_distance_m": 305.0,
   "midpoint_distance_m": 300.0,
   "start_elevation_m": 100.72614914078412,
   "end_elevation_m": 103.20855574185804,
   "start_xy": [
    220170.7395662629,
    66162.91399557145
   ],
   "end_xy": [
    220160.8115737025,
    66161.7160958591
   ]
  },
  "max_20m": {
   "gradient_pct": 22.04033241606588,
   "start_distance_m": 285.0,
   "end_distance_m": 305.0,
   "midpoint_distance_m": 295.0,
   "start_elevation_m": 98.80048925864486,
   "end_elevation_m": 103.20855574185804,
   "start_xy": [
    220180.6883657961,
    66163.90312628861
   ],
   "end_xy": [
    220160.8115737025,
    66161.7160958591
   ]
  },
  "max_25m": {
   "gradient_pct": 21.66189352035786,
   "start_distance_m": 279.0,
   "end_distance_m": 304.0,
   "midpoint_distance_m": 291.5,
   "start_elevation_m": 97.61465460108644,
   "end_elevation_m": 103.03012798117591,
   "start_xy": [
    220186.6698434852,
    66164.37421508525
   ],
   "end_xy": [
    220161.80437295855,
    66161.83588583034
   ]
  },
  "max_50m": {
   "gradient_pct": 19.52613281854721,
   "start_distance_m": 267.0,
   "end_distance_m": 317.0,
   "midpoint_distance_m": 292.0,
   "start_elevation_m": 95.33115396502674,
   "end_elevation_m": 105.09422037430035,
   "start_xy": [
    220198.6327988635,
    66165.31639267853
   ],
   "end_xy": [
    220148.90258535268,
    66160.2429526273
   ]
  },
  "max_100m": {
   "gradient_pct": 16.66001211103722,
   "start_distance_m": 218.0,
   "end_distance_m": 318.0,
   "midpoint_distance_m": 268.0,
   "start_elevation_m": 88.56025200816546,
   "end_elevation_m": 105.22026411920268,
   "start_xy": [
    220247.16519909643,
    66171.74098161046
   ],
   "end_xy": [
    220147.91190358638,
    66160.10675557186
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -44.043271882576676,
   "start_distance_m": 794.0,
   "end_distance_m": 799.0,
   "midpoint_distance_m": 796.5,
   "start_elevation_m": 120.95540673855609,
   "end_elevation_m": 118.75324314442726,
   "start_xy": [
    219707.0289585496,
    66068.37889410497
   ],
   "end_xy": [
    219702.22164361892,
    66069.753566123
   ]
  },
  "min_10m": {
   "gradient_pct": -25.93548362707878,
   "start_distance_m": 119.0,
   "end_distance_m": 129.0,
   "midpoint_distance_m": 124.0,
   "start_elevation_m": 86.24614149840718,
   "end_elevation_m": 83.6525931356993,
   "start_xy": [
    220311.3248354897,
    66131.10305661731
   ],
   "end_xy": [
    220309.37862059526,
    66140.91184082255
   ]
  },
  "min_20m": {
   "gradient_pct": -18.036601522333342,
   "start_distance_m": 824.0,
   "end_distance_m": 844.0,
   "midpoint_distance_m": 834.0,
   "start_elevation_m": 117.6332909309142,
   "end_elevation_m": 114.02597062644753,
   "start_xy": [
    219677.32441677002,
    66071.16813172383
   ],
   "end_xy": [
    219657.3361331551,
    66071.85261556633
   ]
  },
  "min_25m": {
   "gradient_pct": -16.92492196002206,
   "start_distance_m": 819.0,
   "end_distance_m": 844.0,
   "midpoint_distance_m": 831.5,
   "start_elevation_m": 118.25720111645305,
   "end_elevation_m": 114.02597062644753,
   "start_xy": [
    219682.32148767373,
    66070.9970107632
   ],
   "end_xy": [
    219657.3361331551,
    66071.85261556633
   ]
  },
  "min_50m": {
   "gradient_pct": -13.858872224217123,
   "start_distance_m": 794.0,
   "end_distance_m": 844.0,
   "midpoint_distance_m": 819.0,
   "start_elevation_m": 120.95540673855609,
   "end_elevation_m": 114.02597062644753,
   "start_xy": [
    219707.0289585496,
    66068.37889410497
   ],
   "end_xy": [
    219657.3361331551,
    66071.85261556633
   ]
  },
  "min_100m": {
   "gradient_pct": -10.09490159848815,
   "start_distance_m": 780.0,
   "end_distance_m": 880.0,
   "midpoint_distance_m": 830.0,
   "start_elevation_m": 121.1121401681801,
   "end_elevation_m": 111.01723856969195,
   "start_xy": [
    219720.48944035554,
    66064.5298124545
   ],
   "end_xy": [
    219621.35722993556,
    66073.08489915032
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 37.19536861251029,
   "start_distance_m": 433.0,
   "end_distance_m": 435.0,
   "midpoint_distance_m": 434.0,
   "start_elevation_m": 120.83962024754976,
   "end_elevation_m": 121.58352761979997,
   "start_xy": [
    220035.64396037353,
    66162.72910826957
   ],
   "end_xy": [
    220033.71161050786,
    66162.21333312806
   ]
  },
  "max_3m": {
   "gradient_pct": 33.95612916992121,
   "start_distance_m": 432.0,
   "end_distance_m": 435.0,
   "midpoint_distance_m": 433.5,
   "start_elevation_m": 120.56484374470233,
   "end_elevation_m": 121.58352761979997,
   "start_xy": [
    220036.61013530637,
    66162.98699584034
   ],
   "end_xy": [
    220033.71161050786,
    66162.21333312806
   ]
  }
 },
 "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": 0.017,
   "windows_resited": [
    2.0,
    3.0,
    5.0,
    10.0,
    20.0,
    25.0
   ],
   "windows_unresolved": []
  },
  "overhead_obstruction": {
   "obstruction_threshold_m": 2.0,
   "obstructed_fraction": 0.042,
   "obstruction_max_height_m": 18.35,
   "flagged_windows_m": [
    5,
    10
   ]
  },
  "excluded_ranges_m": [
   [
    0.0,
    20.0
   ],
   [
    110.0,
    116.0
   ],
   [
    794.0,
    799.0
   ]
  ],
  "review": [],
  "extent": [
   "descends_at_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:27700",
  "elevation_resolution_m": 1.0,
  "elevation_tiles": [
   "data/cache/england/bulk_dtm_1m/SX1565.tif",
   "data/cache/england/bulk_dtm_1m/SX2065.tif"
  ],
  "calculated_at": "2026-09-05T00:34:33+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "/root/uk-climbs/data/cache/pbf/england-2026-08-27.osm.pbf",
  "osm_snapshot": "2026-08-26T20:22:15Z",
  "run_id": "hunt-england-260905",
  "elevation_provider": "Environment Agency",
  "elevation_dataset": "EA LIDAR Composite DTM 1m (2022)",
  "elevation_licence": "Open Government Licence v3 \u2014 \u00a9 Environment Agency",
  "elevation_coverage_id": "13787b9a-26a4-4775-8523-806d13af58fc__Lidar_Composite_Elevation_DTM_1m",
  "elevation_tile_ids": [
   "SX1565.tif",
   "SX2065.tif"
  ],
  "climb_origin": "discovered",
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing"
 },
 "area": {
  "place": "Doublebois",
  "county": "Cornwall"
 }
}