{
 "ocl_version": "0.1.0",
 "name": "Discovered lane (52.5123, -3.4896)",
 "slug": "discovered-lane-52-5123-3-4896",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 27.48835197869539,
   "diagnostic": true,
   "flags": [
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 170.0,
   "end_distance_m": 172.0,
   "start_elevation_m": 174.12941596204118,
   "end_elevation_m": 174.6791830016151,
   "min_gradient_pct": 0.41225902369319556,
   "suppressed_max_gradient_pct": 49.93981346692209,
   "suppressed_location_m": [
    195.0,
    197.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 25.296250916564606,
   "diagnostic": true,
   "flags": [
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 179.0,
   "end_distance_m": 182.0,
   "start_elevation_m": 176.0260082297172,
   "end_elevation_m": 176.78489575721414,
   "min_gradient_pct": 1.4525963547005933,
   "suppressed_max_gradient_pct": 48.65908805115472,
   "suppressed_location_m": [
    194.0,
    197.0
   ]
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 24.994142519453817,
   "diagnostic": false,
   "flags": [
    "texture_excluded"
   ],
   "start_distance_m": 9.0,
   "end_distance_m": 14.0,
   "start_elevation_m": 156.6322539944227,
   "end_elevation_m": 157.8819611203954,
   "min_gradient_pct": 2.504558948465956,
   "suppressed_max_gradient_pct": 44.04107256663906,
   "suppressed_location_m": [
    194.0,
    199.0
   ]
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 23.13469366466279,
   "diagnostic": false,
   "flags": [
    "texture_excluded"
   ],
   "start_distance_m": 8.0,
   "end_distance_m": 18.0,
   "start_elevation_m": 156.42760474951604,
   "end_elevation_m": 158.74107411598231,
   "min_gradient_pct": 4.009189498146384,
   "suppressed_max_gradient_pct": 37.556282136136474,
   "suppressed_location_m": [
    194.0,
    204.0
   ]
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 20.260363701207496,
   "diagnostic": false,
   "flags": [
    "texture_excluded"
   ],
   "start_distance_m": 3.0,
   "end_distance_m": 23.0,
   "start_elevation_m": 155.54473225114452,
   "end_elevation_m": 159.59680499138602,
   "min_gradient_pct": 4.515342280199377,
   "suppressed_max_gradient_pct": 29.057971142398458,
   "suppressed_location_m": [
    190.0,
    210.0
   ]
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 18.94329108754232,
   "diagnostic": false,
   "flags": [
    "texture_excluded"
   ],
   "start_distance_m": 2.0,
   "end_distance_m": 27.0,
   "start_elevation_m": 155.406015438887,
   "end_elevation_m": 160.1418382107726,
   "min_gradient_pct": 4.612941405344827,
   "suppressed_max_gradient_pct": 26.670094582359184,
   "suppressed_location_m": [
    185.0,
    210.0
   ]
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 15.382270907523775,
   "diagnostic": false,
   "flags": [
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 141.0,
   "end_distance_m": 191.0,
   "start_elevation_m": 170.4080220227328,
   "end_elevation_m": 178.0991574764947,
   "min_gradient_pct": 5.67891755304106,
   "suppressed_max_gradient_pct": 22.171309716701618,
   "suppressed_location_m": [
    160.0,
    210.0
   ]
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 12.526460922008456,
   "diagnostic": false,
   "flags": [
    "texture_excluded"
   ],
   "start_distance_m": 0.0,
   "end_distance_m": 100.0,
   "start_elevation_m": 155.1402545166041,
   "end_elevation_m": 167.66671543861256,
   "min_gradient_pct": 8.40529983710752,
   "suppressed_max_gradient_pct": 17.725894903962143,
   "suppressed_location_m": [
    159.0,
    259.0
   ]
  }
 ],
 "shape": {
  "ascent_concentration": 0.357,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 81.0,
  "shape_class": "sustained"
 },
 "length_m": 302.4575794969022,
 "start_elevation_m": 155.1402545166041,
 "end_elevation_m": 195.14807397460896,
 "endpoint_gain_m": 40.00781945800486,
 "overall_gradient_pct": 13.227580384843563,
 "accumulated_ascent_m": 40.10922737524638,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 24.994142519453817,
   "start_distance_m": 9.0,
   "end_distance_m": 14.0,
   "midpoint_distance_m": 11.5,
   "start_elevation_m": 156.6322539944227,
   "end_elevation_m": 157.8819611203954,
   "start_xy": [
    298932.40198954695,
    291305.5132680271
   ],
   "end_xy": [
    298932.2080193525,
    291310.5095037816
   ]
  },
  "max_10m": {
   "gradient_pct": 23.13469366466279,
   "start_distance_m": 8.0,
   "end_distance_m": 18.0,
   "midpoint_distance_m": 13.0,
   "start_elevation_m": 156.42760474951604,
   "end_elevation_m": 158.74107411598231,
   "start_xy": [
    298932.4400003631,
    291304.51399069943
   ],
   "end_xy": [
    298932.05298059166,
    291314.5064976503
   ]
  },
  "max_20m": {
   "gradient_pct": 20.260363701207496,
   "start_distance_m": 3.0,
   "end_distance_m": 23.0,
   "midpoint_distance_m": 13.0,
   "start_elevation_m": 155.54473225114452,
   "end_elevation_m": 159.59680499138602,
   "start_xy": [
    298932.6340095059,
    291299.5177565031
   ],
   "end_xy": [
    298931.8590103972,
    291319.50273340486
   ]
  },
  "max_25m": {
   "gradient_pct": 18.94329108754232,
   "start_distance_m": 2.0,
   "end_distance_m": 27.0,
   "midpoint_distance_m": 14.5,
   "start_elevation_m": 155.406015438887,
   "end_elevation_m": 160.1418382107726,
   "start_xy": [
    298932.6730183298,
    291298.51851763716
   ],
   "end_xy": [
    298931.2859211321,
    291323.45340337657
   ]
  },
  "max_50m": {
   "gradient_pct": 15.382270907523775,
   "start_distance_m": 141.0,
   "end_distance_m": 191.0,
   "midpoint_distance_m": 166.0,
   "start_elevation_m": 170.4080220227328,
   "end_elevation_m": 178.0991574764947,
   "start_xy": [
    298928.3806934248,
    291424.8794428616
   ],
   "end_xy": [
    298961.23237510066,
    291455.8021457177
   ]
  },
  "max_100m": {
   "gradient_pct": 12.526460922008456,
   "start_distance_m": 0.0,
   "end_distance_m": 100.0,
   "midpoint_distance_m": 50.0,
   "start_elevation_m": 155.1402545166041,
   "end_elevation_m": 167.66671543861256,
   "start_xy": [
    298932.75,
    291296.52
   ],
   "end_xy": [
    298910.6353349333,
    291387.95363354555
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": 2.504558948465956,
   "start_distance_m": 295.0,
   "end_distance_m": 300.0,
   "midpoint_distance_m": 297.5,
   "start_elevation_m": 194.89447990248277,
   "end_elevation_m": 195.01970784990607,
   "start_xy": [
    299002.36420608,
    291530.90044839535
   ],
   "end_xy": [
    299004.4260025844,
    291535.45555317996
   ]
  },
  "min_10m": {
   "gradient_pct": 4.009189498146384,
   "start_distance_m": 85.0,
   "end_distance_m": 95.0,
   "midpoint_distance_m": 90.0,
   "start_elevation_m": 167.01041061143297,
   "end_elevation_m": 167.4113295612476,
   "start_xy": [
    298904.9137324953,
    291374.5664416938
   ],
   "end_xy": [
    298908.3832812917,
    291383.4895270967
   ]
  },
  "min_20m": {
   "gradient_pct": 4.515342280199377,
   "start_distance_m": 86.0,
   "end_distance_m": 106.0,
   "midpoint_distance_m": 96.0,
   "start_elevation_m": 167.0411909249467,
   "end_elevation_m": 167.94425938098658,
   "start_xy": [
    298904.39968873584,
    291375.4221107386
   ],
   "end_xy": [
    298913.33700373344,
    291393.3109630381
   ]
  },
  "min_25m": {
   "gradient_pct": 4.612941405344827,
   "start_distance_m": 85.0,
   "end_distance_m": 110.0,
   "midpoint_distance_m": 97.5,
   "start_elevation_m": 167.01041061143297,
   "end_elevation_m": 168.16364596276918,
   "start_xy": [
    298904.9137324953,
    291374.5664416938
   ],
   "end_xy": [
    298915.13904057274,
    291396.8820494033
   ]
  },
  "min_50m": {
   "gradient_pct": 5.67891755304106,
   "start_distance_m": 85.0,
   "end_distance_m": 135.0,
   "midpoint_distance_m": 110.0,
   "start_elevation_m": 167.01041061143297,
   "end_elevation_m": 169.8498693879535,
   "start_xy": [
    298904.9137324953,
    291374.5664416938
   ],
   "end_xy": [
    298926.2426387334,
    291419.27331148455
   ]
  },
  "min_100m": {
   "gradient_pct": 8.40529983710752,
   "start_distance_m": 40.0,
   "end_distance_m": 140.0,
   "midpoint_distance_m": 90.0,
   "start_elevation_m": 161.89780648700776,
   "end_elevation_m": 170.30310632411528,
   "start_xy": [
    298927.92162796354,
    291335.9157166343
   ],
   "end_xy": [
    298928.02399442584,
    291423.94522349624
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 27.48835197869539,
   "start_distance_m": 170.0,
   "end_distance_m": 172.0,
   "midpoint_distance_m": 171.0,
   "start_elevation_m": 174.12941596204118,
   "end_elevation_m": 174.6791830016151,
   "start_xy": [
    298941.0329113854,
    291450.49217173085
   ],
   "end_xy": [
    298942.8399748519,
    291451.34921396617
   ]
  },
  "max_3m": {
   "gradient_pct": 25.296250916564606,
   "start_distance_m": 179.0,
   "end_distance_m": 182.0,
   "midpoint_distance_m": 180.5,
   "start_elevation_m": 176.0260082297172,
   "end_elevation_m": 176.78489575721414,
   "start_xy": [
    298949.4600013483,
    291453.4785446064
   ],
   "end_xy": [
    298952.40417929855,
    291454.0545794346
   ]
  }
 },
 "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": {
  "texture_suppression": {
   "masked_fraction": 0.05,
   "windows_resited": [
    2.0,
    3.0,
    5.0,
    10.0,
    20.0,
    25.0,
    50.0,
    100.0
   ],
   "windows_unresolved": []
  },
  "texture_windows": {
   "rounds": 1,
   "windows_masked": [
    {
     "window_m": 10.0,
     "start_m": 194.0,
     "end_m": 204.0,
     "raw_pct": 37.56,
     "reason": "short-step"
    }
   ],
   "advisory": [],
   "unresolved": []
  },
  "overhead_obstruction": {
   "obstruction_threshold_m": 2.0,
   "obstructed_fraction": 0.178,
   "obstruction_max_height_m": 13.77,
   "flagged_windows_m": [
    2,
    3,
    50
   ]
  },
  "excluded_ranges_m": [
   [
    192.0,
    206.0
   ]
  ],
  "review": [],
  "extent": [
   "may_start_earlier",
   "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:27700",
  "elevation_resolution_m": 1.0,
  "elevation_tiles": [
   "data/cache/wales/dtm_1m/wg_del_26_298291_20220226dtm.tif",
   "data/cache/wales/dtm_1m/wg_del_26_299291_20220226dtm.tif"
  ],
  "calculated_at": "2026-09-12T01:43:13+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "output/texture-uk-wales/batch-england-rchunk03.pbf",
  "osm_snapshot": "",
  "run_id": "texture-uk-wales-260912",
  "elevation_provider": "Welsh Government",
  "elevation_dataset": "Welsh Government LiDAR 1m DTM (2020-2023)",
  "elevation_licence": "Open Government Licence v3 \u2014 \u00a9 Crown copyright Welsh Government",
  "elevation_catalogue_layer": "geonode:welsh_government_lidar_tile_catalogue_2020_2023",
  "elevation_tile_ids": [
   "wg_del_26_298291_20220226dtm.tif",
   "wg_del_26_299291_20220226dtm.tif"
  ],
  "elevation_capture_dates": [
   "26-02-2022"
  ],
  "climb_origin": "discovered",
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing"
 },
 "area": {
  "place": "Trefeglwys",
  "county": "Powys - Powys"
 }
}