{
 "ocl_version": "0.1.0",
 "name": "Blakey Bank",
 "slug": "blakey-bank",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 32.675225249613504,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 687.0,
   "end_distance_m": 689.0,
   "start_elevation_m": 212.9408794526848,
   "end_elevation_m": 213.59438395767708,
   "min_gradient_pct": -8.772738394631574
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 32.679549987313784,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 686.0,
   "end_distance_m": 689.0,
   "start_elevation_m": 212.61399745805767,
   "end_elevation_m": 213.59438395767708,
   "min_gradient_pct": -7.644757298802081
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 30.43011693649703,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 684.0,
   "end_distance_m": 689.0,
   "start_elevation_m": 212.07287811085223,
   "end_elevation_m": 213.59438395767708,
   "min_gradient_pct": -4.713383220155265
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 24.05126581677365,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 679.0,
   "end_distance_m": 689.0,
   "start_elevation_m": 211.18925737599972,
   "end_elevation_m": 213.59438395767708,
   "min_gradient_pct": -1.5762242396169768
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 21.409292024758315,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1322.0,
   "end_distance_m": 1342.0,
   "start_elevation_m": 295.8939575649972,
   "end_elevation_m": 300.17581596994887,
   "min_gradient_pct": -0.9726806163774881
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 21.265946071067674,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1321.0,
   "end_distance_m": 1346.0,
   "start_elevation_m": 295.6853973836129,
   "end_elevation_m": 301.0018839013798,
   "min_gradient_pct": 0.47731957686323767
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 20.513758881169224,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1300.0,
   "end_distance_m": 1350.0,
   "start_elevation_m": 291.5015402646557,
   "end_elevation_m": 301.7584197052403,
   "min_gradient_pct": 3.9931029327742635
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 19.476816871537494,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1294.0,
   "end_distance_m": 1394.0,
   "start_elevation_m": 290.3775058825301,
   "end_elevation_m": 309.8543227540676,
   "min_gradient_pct": 4.966998940390312
  }
 ],
 "shape": {
  "ascent_concentration": 0.33,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 320.0,
  "shape_class": "sustained"
 },
 "length_m": 1836.1305174620925,
 "start_elevation_m": 142.9372739062474,
 "end_elevation_m": 371.3391513780511,
 "endpoint_gain_m": 228.4018774718037,
 "overall_gradient_pct": 12.4393051201775,
 "accumulated_ascent_m": 229.93485896238434,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 30.43011693649703,
   "start_distance_m": 684.0,
   "end_distance_m": 689.0,
   "midpoint_distance_m": 686.5,
   "start_elevation_m": 212.07287811085223,
   "end_elevation_m": 213.59438395767708,
   "start_xy": [
    467726.05015640456,
    498053.3531239614
   ],
   "end_xy": [
    467729.6260267144,
    498056.84785592934
   ]
  },
  "max_10m": {
   "gradient_pct": 24.05126581677365,
   "start_distance_m": 679.0,
   "end_distance_m": 689.0,
   "midpoint_distance_m": 684.0,
   "start_elevation_m": 211.18925737599972,
   "end_elevation_m": 213.59438395767708,
   "start_xy": [
    467722.4742860947,
    498049.85839199356
   ],
   "end_xy": [
    467729.6260267144,
    498056.84785592934
   ]
  },
  "max_20m": {
   "gradient_pct": 21.409292024758315,
   "start_distance_m": 1322.0,
   "end_distance_m": 1342.0,
   "midpoint_distance_m": 1332.0,
   "start_elevation_m": 295.8939575649972,
   "end_elevation_m": 300.17581596994887,
   "start_xy": [
    468001.45246971253,
    498609.1199188542
   ],
   "end_xy": [
    468007.32072751183,
    498628.2390388198
   ]
  },
  "max_25m": {
   "gradient_pct": 21.265946071067674,
   "start_distance_m": 1321.0,
   "end_distance_m": 1346.0,
   "midpoint_distance_m": 1333.5,
   "start_elevation_m": 295.6853973836129,
   "end_elevation_m": 301.0018839013798,
   "start_xy": [
    468001.18870803434,
    498608.1553309748
   ],
   "end_xy": [
    468008.50146839226,
    498632.06079901283
   ]
  },
  "max_50m": {
   "gradient_pct": 20.513758881169224,
   "start_distance_m": 1300.0,
   "end_distance_m": 1350.0,
   "midpoint_distance_m": 1325.0,
   "start_elevation_m": 291.5015402646557,
   "end_elevation_m": 301.7584197052403,
   "start_xy": [
    467993.75455255917,
    498588.69459550997
   ],
   "end_xy": [
    468009.6822092727,
    498635.88255920593
   ]
  },
  "max_100m": {
   "gradient_pct": 19.476816871537494,
   "start_distance_m": 1294.0,
   "end_distance_m": 1394.0,
   "midpoint_distance_m": 1344.0,
   "start_elevation_m": 290.3775058825301,
   "end_elevation_m": 309.8543227540676,
   "start_xy": [
    467990.73163177865,
    498583.5117439826
   ],
   "end_xy": [
    468025.13000972784,
    498676.9145565107
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -4.713383220155265,
   "start_distance_m": 878.0,
   "end_distance_m": 883.0,
   "midpoint_distance_m": 880.5,
   "start_elevation_m": 233.2584767775514,
   "end_elevation_m": 233.02280761654364,
   "start_xy": [
    467788.7650008606,
    498226.49377112614
   ],
   "end_xy": [
    467790.8201708539,
    498231.05187120166
   ]
  },
  "min_10m": {
   "gradient_pct": -1.5762242396169768,
   "start_distance_m": 1816.0,
   "end_distance_m": 1826.0,
   "midpoint_distance_m": 1821.0,
   "start_elevation_m": 371.53751385642096,
   "end_elevation_m": 371.37989143245926,
   "start_xy": [
    468308.09038285323,
    498960.43689847447
   ],
   "end_xy": [
    468317.9503465547,
    498962.10456624895
   ]
  },
  "min_20m": {
   "gradient_pct": -0.9726806163774881,
   "start_distance_m": 1816.0,
   "end_distance_m": 1836.0,
   "midpoint_distance_m": 1826.0,
   "start_elevation_m": 371.53751385642096,
   "end_elevation_m": 371.34297773314546,
   "start_xy": [
    468308.09038285323,
    498960.43689847447
   ],
   "end_xy": [
    468327.81031025614,
    498963.77223402343
   ]
  },
  "min_25m": {
   "gradient_pct": 0.47731957686323767,
   "start_distance_m": 1811.0,
   "end_distance_m": 1836.0,
   "midpoint_distance_m": 1823.5,
   "start_elevation_m": 371.22364783892965,
   "end_elevation_m": 371.34297773314546,
   "start_xy": [
    468303.1604010025,
    498959.6030645872
   ],
   "end_xy": [
    468327.81031025614,
    498963.77223402343
   ]
  },
  "min_50m": {
   "gradient_pct": 3.9931029327742635,
   "start_distance_m": 834.0,
   "end_distance_m": 884.0,
   "midpoint_distance_m": 859.0,
   "start_elevation_m": 231.07484677685474,
   "end_elevation_m": 233.07139824324187,
   "start_xy": [
    467782.14160381095,
    498183.8587846801
   ],
   "end_xy": [
    467791.23120485264,
    498231.96349121677
   ]
  },
  "min_100m": {
   "gradient_pct": 4.966998940390312,
   "start_distance_m": 1.0,
   "end_distance_m": 101.0,
   "midpoint_distance_m": 51.0,
   "start_elevation_m": 143.0529627748416,
   "end_elevation_m": 148.01996171523191,
   "start_xy": [
    467143.70276901714,
    497709.5845415472
   ],
   "end_xy": [
    467221.80662307027,
    497771.2208449514
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 32.675225249613504,
   "start_distance_m": 687.0,
   "end_distance_m": 689.0,
   "midpoint_distance_m": 688.0,
   "start_elevation_m": 212.9408794526848,
   "end_elevation_m": 213.59438395767708,
   "start_xy": [
    467728.19567859045,
    498055.44996314216
   ],
   "end_xy": [
    467729.6260267144,
    498056.84785592934
   ]
  },
  "max_3m": {
   "gradient_pct": 32.679549987313784,
   "start_distance_m": 686.0,
   "end_distance_m": 689.0,
   "midpoint_distance_m": 687.5,
   "start_elevation_m": 212.61399745805767,
   "end_elevation_m": 213.59438395767708,
   "start_xy": [
    467727.4805045285,
    498054.7510167486
   ],
   "end_xy": [
    467729.6260267144,
    498056.84785592934
   ]
  }
 },
 "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": 0.003,
   "obstruction_max_height_m": 5.91,
   "flagged_windows_m": []
  },
  "review": [],
  "extent": []
 },
 "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/SE6595.tif"
  ],
  "calculated_at": "2026-09-05T00:00:32+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": [
   "SE6595.tif"
  ],
  "climb_origin": "discovered",
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing"
 },
 "area": {
  "place": "Church Houses",
  "county": "North Yorkshire"
 }
}