{
 "ocl_version": "0.1.0",
 "name": "Mount Lane",
 "slug": "mount-lane-2",
 "confidence": "U",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 49.39330778294533,
   "diagnostic": true,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 1504.0,
   "end_distance_m": 1506.0,
   "start_elevation_m": 114.0887698999434,
   "end_elevation_m": 115.07663605560231,
   "min_gradient_pct": -31.94708923343441,
   "suppressed_max_gradient_pct": 58.31409094680282,
   "suppressed_location_m": [
    1439.0,
    1441.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 45.693119453067276,
   "diagnostic": true,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 504.0,
   "end_distance_m": 507.0,
   "start_elevation_m": 86.92381559610904,
   "end_elevation_m": 88.29460917970106,
   "min_gradient_pct": -29.816742787997914,
   "suppressed_max_gradient_pct": 53.769437431931046,
   "suppressed_location_m": [
    1439.0,
    1442.0
   ]
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 38.8565464673087,
   "diagnostic": false,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 503.0,
   "end_distance_m": 508.0,
   "start_elevation_m": 86.64308463866456,
   "end_elevation_m": 88.58591196203,
   "min_gradient_pct": -21.09844291939993,
   "suppressed_max_gradient_pct": 46.19203976989553,
   "suppressed_location_m": [
    1438.0,
    1443.0
   ]
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 27.498931224426997,
   "diagnostic": false,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 499.0,
   "end_distance_m": 509.0,
   "start_elevation_m": 86.06469625073322,
   "end_elevation_m": 88.81458937317592,
   "min_gradient_pct": -16.025441378374268,
   "suppressed_max_gradient_pct": 30.68243247110246,
   "suppressed_location_m": [
    1433.0,
    1443.0
   ]
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 22.72721032648313,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 489.0,
   "end_distance_m": 509.0,
   "start_elevation_m": 84.2691473078793,
   "end_elevation_m": 88.81458937317592,
   "min_gradient_pct": -14.832883444270735
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 23.824806867064126,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 484.0,
   "end_distance_m": 509.0,
   "start_elevation_m": 82.85838765640989,
   "end_elevation_m": 88.81458937317592,
   "min_gradient_pct": -14.377715133485651
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 19.1837486878988,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 464.0,
   "end_distance_m": 514.0,
   "start_elevation_m": 79.81547453372082,
   "end_elevation_m": 89.40734887767022,
   "min_gradient_pct": -12.254145606265695
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 15.088497872450333,
   "diagnostic": false,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 464.0,
   "end_distance_m": 564.0,
   "start_elevation_m": 79.81547453372082,
   "end_elevation_m": 94.90397240617115,
   "min_gradient_pct": -8.584400830728129,
   "suppressed_max_gradient_pct": 15.123462388073222,
   "suppressed_location_m": [
    417.0,
    517.0
   ]
  }
 ],
 "shape": {
  "ascent_concentration": 0.469,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 121.0,
  "shape_class": "stepped"
 },
 "length_m": 1803.889120374018,
 "start_elevation_m": 63.76783670425421,
 "end_elevation_m": 132.19300731445242,
 "endpoint_gain_m": 68.42517061019821,
 "overall_gradient_pct": 3.793202688423053,
 "accumulated_ascent_m": 96.79666769250139,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 38.8565464673087,
   "start_distance_m": 503.0,
   "end_distance_m": 508.0,
   "midpoint_distance_m": 505.5,
   "start_elevation_m": 86.64308463866456,
   "end_elevation_m": 88.58591196203,
   "start_xy": [
    303202.30074508896,
    138443.16990267488
   ],
   "end_xy": [
    303198.4358557539,
    138439.99773773155
   ]
  },
  "max_10m": {
   "gradient_pct": 27.498931224426997,
   "start_distance_m": 499.0,
   "end_distance_m": 509.0,
   "midpoint_distance_m": 504.0,
   "start_elevation_m": 86.06469625073322,
   "end_elevation_m": 88.81458937317592,
   "start_xy": [
    303205.39265655703,
    138445.70763462954
   ],
   "end_xy": [
    303197.6628778869,
    138439.36330474287
   ]
  },
  "max_20m": {
   "gradient_pct": 22.72721032648313,
   "start_distance_m": 489.0,
   "end_distance_m": 509.0,
   "midpoint_distance_m": 499.0,
   "start_elevation_m": 84.2691473078793,
   "end_elevation_m": 88.81458937317592,
   "start_xy": [
    303213.44441973016,
    138451.425827726
   ],
   "end_xy": [
    303197.6628778869,
    138439.36330474287
   ]
  },
  "max_25m": {
   "gradient_pct": 23.824806867064126,
   "start_distance_m": 484.0,
   "end_distance_m": 509.0,
   "midpoint_distance_m": 496.5,
   "start_elevation_m": 82.85838765640989,
   "end_elevation_m": 88.81458937317592,
   "start_xy": [
    303218.27291486255,
    138452.72414770065
   ],
   "end_xy": [
    303197.6628778869,
    138439.36330474287
   ]
  },
  "max_50m": {
   "gradient_pct": 19.1837486878988,
   "start_distance_m": 464.0,
   "end_distance_m": 514.0,
   "midpoint_distance_m": 489.0,
   "start_elevation_m": 79.81547453372082,
   "end_elevation_m": 89.40734887767022,
   "start_xy": [
    303229.9889957168,
    138439.5923086568
   ],
   "end_xy": [
    303193.71461167914,
    138436.29818436466
   ]
  },
  "max_100m": {
   "gradient_pct": 15.088497872450333,
   "start_distance_m": 464.0,
   "end_distance_m": 564.0,
   "midpoint_distance_m": 514.0,
   "start_elevation_m": 79.81547453372082,
   "end_elevation_m": 94.90397240617115,
   "start_xy": [
    303229.9889957168,
    138439.5923086568
   ],
   "end_xy": [
    303151.7706450058,
    138409.42730111416
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -21.09844291939993,
   "start_distance_m": 1298.0,
   "end_distance_m": 1303.0,
   "midpoint_distance_m": 1300.5,
   "start_elevation_m": 110.44131958872362,
   "end_elevation_m": 109.38639744275362,
   "start_xy": [
    302765.26031988126,
    138985.89617127593
   ],
   "end_xy": [
    302763.3748214553,
    138990.52703466042
   ]
  },
  "min_10m": {
   "gradient_pct": -16.025441378374268,
   "start_distance_m": 1293.0,
   "end_distance_m": 1303.0,
   "midpoint_distance_m": 1298.0,
   "start_elevation_m": 110.98894158059105,
   "end_elevation_m": 109.38639744275362,
   "start_xy": [
    302767.1458183072,
    138981.26530789144
   ],
   "end_xy": [
    302763.3748214553,
    138990.52703466042
   ]
  },
  "min_20m": {
   "gradient_pct": -14.832883444270735,
   "start_distance_m": 1289.0,
   "end_distance_m": 1309.0,
   "midpoint_distance_m": 1299.0,
   "start_elevation_m": 111.7238256082033,
   "end_elevation_m": 108.75724891934915,
   "start_xy": [
    302768.456723163,
    138977.48924448105
   ],
   "end_xy": [
    302760.59200928354,
    138995.784846924
   ]
  },
  "min_25m": {
   "gradient_pct": -14.377715133485651,
   "start_distance_m": 1278.0,
   "end_distance_m": 1303.0,
   "midpoint_distance_m": 1290.5,
   "start_elevation_m": 112.98082622612503,
   "end_elevation_m": 109.38639744275362,
   "start_xy": [
    302771.7800012962,
    138967.00326229294
   ],
   "end_xy": [
    302763.3748214553,
    138990.52703466042
   ]
  },
  "min_50m": {
   "gradient_pct": -12.254145606265695,
   "start_distance_m": 1275.0,
   "end_distance_m": 1325.0,
   "midpoint_distance_m": 1300.0,
   "start_elevation_m": 113.39192250557875,
   "end_elevation_m": 107.2648497024459,
   "start_xy": [
    302772.686349878,
    138964.1434489689
   ],
   "end_xy": [
    302750.75298529025,
    139008.39666173494
   ]
  },
  "min_100m": {
   "gradient_pct": -8.584400830728129,
   "start_distance_m": 1275.0,
   "end_distance_m": 1375.0,
   "midpoint_distance_m": 1325.0,
   "start_elevation_m": 113.39192250557875,
   "end_elevation_m": 104.80752167485062,
   "start_xy": [
    302772.686349878,
    138964.1434489689
   ],
   "end_xy": [
    302752.07192976406,
    139034.20408828495
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 49.39330778294533,
   "start_distance_m": 1504.0,
   "end_distance_m": 1506.0,
   "midpoint_distance_m": 1505.0,
   "start_elevation_m": 114.0887698999434,
   "end_elevation_m": 115.07663605560231,
   "start_xy": [
    302820.8052002279,
    139114.44328057586
   ],
   "end_xy": [
    302820.92055853776,
    139116.4399509193
   ]
  },
  "max_3m": {
   "gradient_pct": 45.693119453067276,
   "start_distance_m": 504.0,
   "end_distance_m": 507.0,
   "midpoint_distance_m": 505.5,
   "start_elevation_m": 86.92381559610904,
   "end_elevation_m": 88.29460917970106,
   "start_xy": [
    303201.52776722197,
    138442.5354696862
   ],
   "end_xy": [
    303199.20883362094,
    138440.6321707202
   ]
  }
 },
 "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": 0.007,
   "windows_resited": [
    2.0,
    3.0,
    5.0,
    10.0,
    100.0
   ],
   "windows_unresolved": []
  },
  "overhead_obstruction": {
   "obstruction_threshold_m": 2.0,
   "obstructed_fraction": 0.03,
   "obstruction_max_height_m": 6.92,
   "flagged_windows_m": []
  },
  "excluded_ranges_m": [
   [
    429.0,
    434.0
   ],
   [
    1438.0,
    1443.0
   ]
  ],
  "review": [
   "short_window_divergence"
  ],
  "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/ST0035.tif"
  ],
  "calculated_at": "2026-09-05T02:34:17+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "/mnt/HC_Volume_106792346/hunt-gb/regions/region-08.osm.pbf",
  "osm_snapshot": "",
  "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": [
   "ST0035.tif"
  ],
  "climb_origin": "discovered",
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing"
 },
 "area": {
  "place": "Roadwater",
  "county": "Somerset"
 }
}