{
 "ocl_version": "0.1.0",
 "name": "Mount Ninham Court",
 "slug": "mount-ninham-court",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 23.125224339067074,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 298.0,
   "end_distance_m": 300.0,
   "start_elevation_m": 217.0064090219959,
   "end_elevation_m": 217.46891350877723,
   "min_gradient_pct": -3.8181754123343126
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 22.949536555200705,
   "diagnostic": true,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 297.0,
   "end_distance_m": 300.0,
   "start_elevation_m": 216.7804274121212,
   "end_elevation_m": 217.46891350877723,
   "min_gradient_pct": -3.703917282069824
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 22.957685772465766,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 295.0,
   "end_distance_m": 300.0,
   "start_elevation_m": 216.32102922015395,
   "end_elevation_m": 217.46891350877723,
   "min_gradient_pct": -2.792001424913906
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 22.149725203887556,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 290.0,
   "end_distance_m": 300.0,
   "start_elevation_m": 215.25394098838848,
   "end_elevation_m": 217.46891350877723,
   "min_gradient_pct": 0.8298887464025029
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 21.3795138396965,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 283.0,
   "end_distance_m": 303.0,
   "start_elevation_m": 213.79602302235088,
   "end_elevation_m": 218.07192579029018,
   "min_gradient_pct": 1.622502657831717
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 20.734393720225626,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 276.0,
   "end_distance_m": 301.0,
   "start_elevation_m": 212.49162105838462,
   "end_elevation_m": 217.67521948844103,
   "min_gradient_pct": 1.6925272185649192
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 18.96360572925414,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 258.0,
   "end_distance_m": 308.0,
   "start_elevation_m": 209.41810044703044,
   "end_elevation_m": 218.8999033116575,
   "min_gradient_pct": 2.113815871422446
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 16.680183632314822,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 258.0,
   "end_distance_m": 358.0,
   "start_elevation_m": 209.41810044703044,
   "end_elevation_m": 226.09828407934526,
   "min_gradient_pct": 2.3260913298387607
  }
 ],
 "shape": {
  "ascent_concentration": 0.374,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 161.0,
  "shape_class": "sustained"
 },
 "length_m": 934.6761288971641,
 "start_elevation_m": 184.60545959234966,
 "end_elevation_m": 275.3049405862378,
 "endpoint_gain_m": 90.69948099388816,
 "overall_gradient_pct": 9.703840527189412,
 "accumulated_ascent_m": 90.88892754363181,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 22.957685772465766,
   "start_distance_m": 295.0,
   "end_distance_m": 300.0,
   "midpoint_distance_m": 297.5,
   "start_elevation_m": 216.32102922015395,
   "end_elevation_m": 217.46891350877723,
   "start_xy": [
    607311.5751237761,
    4590308.2930274485
   ],
   "end_xy": [
    607306.5822029032,
    4590308.027055351
   ]
  },
  "max_10m": {
   "gradient_pct": 22.149725203887556,
   "start_distance_m": 290.0,
   "end_distance_m": 300.0,
   "midpoint_distance_m": 295.0,
   "start_elevation_m": 215.25394098838848,
   "end_elevation_m": 217.46891350877723,
   "start_xy": [
    607316.5680446491,
    4590308.558999546
   ],
   "end_xy": [
    607306.5822029032,
    4590308.027055351
   ]
  },
  "max_20m": {
   "gradient_pct": 21.3795138396965,
   "start_distance_m": 283.0,
   "end_distance_m": 303.0,
   "midpoint_distance_m": 293.0,
   "start_elevation_m": 213.79602302235088,
   "end_elevation_m": 218.07192579029018,
   "start_xy": [
    607323.5581338712,
    4590308.931360482
   ],
   "end_xy": [
    607303.5864503795,
    4590307.867472093
   ]
  },
  "max_25m": {
   "gradient_pct": 20.734393720225626,
   "start_distance_m": 276.0,
   "end_distance_m": 301.0,
   "midpoint_distance_m": 288.5,
   "start_elevation_m": 212.49162105838462,
   "end_elevation_m": 217.67521948844103,
   "start_xy": [
    607330.5482230933,
    4590309.303721419
   ],
   "end_xy": [
    607305.5836187286,
    4590307.973860932
   ]
  },
  "max_50m": {
   "gradient_pct": 18.96360572925414,
   "start_distance_m": 258.0,
   "end_distance_m": 308.0,
   "midpoint_distance_m": 283.0,
   "start_elevation_m": 209.41810044703044,
   "end_elevation_m": 218.8999033116575,
   "start_xy": [
    607347.9302460087,
    4590312.698596595
   ],
   "end_xy": [
    607298.5935295065,
    4590307.601499994
   ]
  },
  "max_100m": {
   "gradient_pct": 16.680183632314822,
   "start_distance_m": 258.0,
   "end_distance_m": 358.0,
   "midpoint_distance_m": 308.0,
   "start_elevation_m": 209.41810044703044,
   "end_elevation_m": 226.09828407934526,
   "start_xy": [
    607347.9302460087,
    4590312.698596595
   ],
   "end_xy": [
    607251.0904627092,
    4590294.976735897
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -2.792001424913906,
   "start_distance_m": 201.0,
   "end_distance_m": 206.0,
   "midpoint_distance_m": 203.5,
   "start_elevation_m": 202.6651709872533,
   "end_elevation_m": 202.5255709160076,
   "start_xy": [
    607391.5045868683,
    4590347.225950233
   ],
   "end_xy": [
    607388.2004951836,
    4590343.969208063
   ]
  },
  "min_10m": {
   "gradient_pct": 0.8298887464025029,
   "start_distance_m": 482.0,
   "end_distance_m": 492.0,
   "midpoint_distance_m": 487.0,
   "start_elevation_m": 230.2525409970714,
   "end_elevation_m": 230.33552987171166,
   "start_xy": [
    607145.4289966695,
    4590232.503054279
   ],
   "end_xy": [
    607135.4560288497,
    4590233.237841911
   ]
  },
  "min_20m": {
   "gradient_pct": 1.622502657831717,
   "start_distance_m": 480.0,
   "end_distance_m": 500.0,
   "midpoint_distance_m": 490.0,
   "start_elevation_m": 230.22319666854082,
   "end_elevation_m": 230.54769720010717,
   "start_xy": [
    607147.3664122246,
    4590232.641473108
   ],
   "end_xy": [
    607127.4776545938,
    4590233.8256720165
   ]
  },
  "min_25m": {
   "gradient_pct": 1.6925272185649192,
   "start_distance_m": 480.0,
   "end_distance_m": 505.0,
   "midpoint_distance_m": 492.5,
   "start_elevation_m": 230.22319666854082,
   "end_elevation_m": 230.64632847318205,
   "start_xy": [
    607147.3664122246,
    4590232.641473108
   ],
   "end_xy": [
    607122.5356035196,
    4590233.833872205
   ]
  },
  "min_50m": {
   "gradient_pct": 2.113815871422446,
   "start_distance_m": 482.0,
   "end_distance_m": 532.0,
   "midpoint_distance_m": 507.0,
   "start_elevation_m": 230.2525409970714,
   "end_elevation_m": 231.30944893278263,
   "start_xy": [
    607145.4289966695,
    4590232.503054279
   ],
   "end_xy": [
    607096.9036819678,
    4590225.348319922
   ]
  },
  "min_100m": {
   "gradient_pct": 2.3260913298387607,
   "start_distance_m": 438.0,
   "end_distance_m": 538.0,
   "midpoint_distance_m": 488.0,
   "start_elevation_m": 229.13603981959278,
   "end_elevation_m": 231.46213114943154,
   "start_xy": [
    607183.0365867909,
    4590254.44510377
   ],
   "end_xy": [
    607091.2076994006,
    4590223.462641636
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 23.125224339067074,
   "start_distance_m": 298.0,
   "end_distance_m": 300.0,
   "midpoint_distance_m": 299.0,
   "start_elevation_m": 217.0064090219959,
   "end_elevation_m": 217.46891350877723,
   "start_xy": [
    607308.5793712523,
    4590308.13344419
   ],
   "end_xy": [
    607306.5822029032,
    4590308.027055351
   ]
  },
  "max_3m": {
   "gradient_pct": 22.949536555200705,
   "start_distance_m": 297.0,
   "end_distance_m": 300.0,
   "midpoint_distance_m": 298.5,
   "start_elevation_m": 216.7804274121212,
   "end_elevation_m": 217.46891350877723,
   "start_xy": [
    607309.577955427,
    4590308.1866386095
   ],
   "end_xy": [
    607306.5822029032,
    4590308.027055351
   ]
  }
 },
 "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": 0.19,
   "obstruction_max_height_m": 25.66,
   "flagged_windows_m": [
    3,
    5,
    10,
    20,
    25,
    50,
    100
   ]
  },
  "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:26918",
  "elevation_resolution_m": 1.0,
  "elevation_tiles": [
   "data/cache/usa/ny/USGS_1M_18_x60y459_NY_FEMAR2_Central_2018_D19.tif",
   "data/cache/usa/ny/USGS_1M_18_x60y460_NY_FEMAR2_Central_2018_D19.tif"
  ],
  "calculated_at": "2026-09-06T12:13:06+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/new-york-2026-09-06-batch-band3.osm.pbf",
  "osm_snapshot": "",
  "run_id": "ny-run3-260906",
  "elevation_provider": "USGS 3DEP (The National Map)",
  "elevation_licence": "Public domain \u2014 USGS 3DEP 1 m DEM, courtesy of the U.S. Geological Survey",
  "elevation_dataset": "USGS 3DEP 1 m DEM, NY_FEMAR2_Central_2018_D19 (collected 2018)",
  "elevation_tile_ids": [
   "x60y459",
   "x60y460"
  ],
  "climb_origin": "discovered",
  "canopy_source": {
   "kind": "ept_corridor_max_return",
   "ept_source": "https://s3-us-west-2.amazonaws.com/usgs-lidar-public/NY_FEMAR2_Central_B1_2018",
   "ept_crs": "EPSG:3857",
   "station_coverage": 1.0,
   "cell_ground_m": 1.0,
   "nodes_failed": 0
  },
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing"
 },
 "area": {
  "place": "Kent",
  "county": "New York"
 }
}