{
 "ocl_version": "0.1.0",
 "name": "Storebakken",
 "slug": "storebakken",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 22.901831018972274,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 16.0,
   "end_distance_m": 18.0,
   "start_elevation_m": 25.592413847168963,
   "end_elevation_m": 26.05045046754841,
   "min_gradient_pct": -1.3436501533185208
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 22.771535417290423,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 16.0,
   "end_distance_m": 19.0,
   "start_elevation_m": 25.592413847168963,
   "end_elevation_m": 26.275559909687676,
   "min_gradient_pct": -1.1868269031647098
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 22.800197519040637,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 13.0,
   "end_distance_m": 18.0,
   "start_elevation_m": 24.910440591596377,
   "end_elevation_m": 26.05045046754841,
   "min_gradient_pct": -0.892551978956817
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 22.442867020186483,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 13.0,
   "end_distance_m": 23.0,
   "start_elevation_m": 24.910440591596377,
   "end_elevation_m": 27.154727293615025,
   "min_gradient_pct": -0.2784999662665655
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 21.82229114394543,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 10.0,
   "end_distance_m": 30.0,
   "start_elevation_m": 24.26557239809787,
   "end_elevation_m": 28.630030626886956,
   "min_gradient_pct": 0.5834878017617484
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 21.505770531677314,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 6.0,
   "end_distance_m": 31.0,
   "start_elevation_m": 23.43901019712002,
   "end_elevation_m": 28.815452830039348,
   "min_gradient_pct": 1.0687553607187965
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 17.982973207618457,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 4.0,
   "end_distance_m": 54.0,
   "start_elevation_m": 23.096760207346577,
   "end_elevation_m": 32.088246811155805,
   "min_gradient_pct": 2.6580008189883415
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 14.517199158130573,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 4.0,
   "end_distance_m": 104.0,
   "start_elevation_m": 23.096760207346577,
   "end_elevation_m": 37.61395936547715,
   "min_gradient_pct": 3.2637520812192453
  }
 ],
 "shape": {
  "ascent_concentration": 0.429,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 153.0,
  "shape_class": "sustained"
 },
 "length_m": 500.0940048123456,
 "start_elevation_m": 22.881187674290636,
 "end_elevation_m": 63.063463207760655,
 "endpoint_gain_m": 40.18227553347002,
 "overall_gradient_pct": 8.034944459801702,
 "accumulated_ascent_m": 40.22690313241786,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 22.800197519040637,
   "start_distance_m": 13.0,
   "end_distance_m": 18.0,
   "midpoint_distance_m": 15.5,
   "start_elevation_m": 24.910440591596377,
   "end_elevation_m": 26.05045046754841,
   "start_xy": [
    35911.90243932473,
    6921794.786521354
   ],
   "end_xy": [
    35916.7180046104,
    6921793.400009358
   ]
  },
  "max_10m": {
   "gradient_pct": 22.442867020186483,
   "start_distance_m": 13.0,
   "end_distance_m": 23.0,
   "midpoint_distance_m": 18.0,
   "start_elevation_m": 24.910440591596377,
   "end_elevation_m": 27.154727293615025,
   "start_xy": [
    35911.90243932473,
    6921794.786521354
   ],
   "end_xy": [
    35921.53356989607,
    6921792.013497364
   ]
  },
  "max_20m": {
   "gradient_pct": 21.82229114394543,
   "start_distance_m": 10.0,
   "end_distance_m": 30.0,
   "midpoint_distance_m": 20.0,
   "start_elevation_m": 24.26557239809787,
   "end_elevation_m": 28.630030626886956,
   "start_xy": [
    35909.01310015333,
    6921795.618428551
   ],
   "end_xy": [
    35928.275361296,
    6921790.07238057
   ]
  },
  "max_25m": {
   "gradient_pct": 21.505770531677314,
   "start_distance_m": 6.0,
   "end_distance_m": 31.0,
   "midpoint_distance_m": 18.5,
   "start_elevation_m": 23.43901019712002,
   "end_elevation_m": 28.815452830039348,
   "start_xy": [
    35905.257314372546,
    6921796.990268392
   ],
   "end_xy": [
    35929.23847435314,
    6921789.795078171
   ]
  },
  "max_50m": {
   "gradient_pct": 17.982973207618457,
   "start_distance_m": 4.0,
   "end_distance_m": 54.0,
   "midpoint_distance_m": 29.0,
   "start_elevation_m": 23.096760207346577,
   "end_elevation_m": 32.088246811155805,
   "start_xy": [
    35903.43117761152,
    6921797.816803026
   ],
   "end_xy": [
    35950.71306012483,
    6921781.5468719825
   ]
  },
  "max_100m": {
   "gradient_pct": 14.517199158130573,
   "start_distance_m": 4.0,
   "end_distance_m": 104.0,
   "midpoint_distance_m": 54.0,
   "start_elevation_m": 23.096760207346577,
   "end_elevation_m": 37.61395936547715,
   "start_xy": [
    35903.43117761152,
    6921797.816803026
   ],
   "end_xy": [
    35999.19322336457,
    6921770.602458494
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -0.892551978956817,
   "start_distance_m": 249.0,
   "end_distance_m": 254.0,
   "midpoint_distance_m": 251.5,
   "start_elevation_m": 54.22358203886898,
   "end_elevation_m": 54.17895443992114,
   "start_xy": [
    36121.180732244786,
    6921696.232266221
   ],
   "end_xy": [
    36124.03239559757,
    6921700.352943893
   ]
  },
  "min_10m": {
   "gradient_pct": -0.2784999662665655,
   "start_distance_m": 248.0,
   "end_distance_m": 258.0,
   "midpoint_distance_m": 253.0,
   "start_elevation_m": 54.22142181686363,
   "end_elevation_m": 54.193571820236976,
   "start_xy": [
    36120.52004878604,
    6921695.897028034
   ],
   "end_xy": [
    36126.31372627979,
    6921703.649486029
   ]
  },
  "min_20m": {
   "gradient_pct": 0.5834878017617484,
   "start_distance_m": 248.0,
   "end_distance_m": 268.0,
   "midpoint_distance_m": 258.0,
   "start_elevation_m": 54.22142181686363,
   "end_elevation_m": 54.33811937721598,
   "start_xy": [
    36120.52004878604,
    6921695.897028034
   ],
   "end_xy": [
    36131.17024725763,
    6921712.39552581
   ]
  },
  "min_25m": {
   "gradient_pct": 1.0687553607187965,
   "start_distance_m": 248.0,
   "end_distance_m": 273.0,
   "midpoint_distance_m": 260.5,
   "start_elevation_m": 54.22142181686363,
   "end_elevation_m": 54.48861065704333,
   "start_xy": [
    36120.52004878604,
    6921695.897028034
   ],
   "end_xy": [
    36133.32139115244,
    6921716.921511218
   ]
  },
  "min_50m": {
   "gradient_pct": 2.6580008189883415,
   "start_distance_m": 247.0,
   "end_distance_m": 297.0,
   "midpoint_distance_m": 272.0,
   "start_elevation_m": 54.18207147075152,
   "end_elevation_m": 55.51107188024569,
   "start_xy": [
    36119.6928372673,
    6921696.462890193
   ],
   "end_xy": [
    36147.1729387724,
    6921736.239683149
   ]
  },
  "min_100m": {
   "gradient_pct": 3.2637520812192453,
   "start_distance_m": 364.0,
   "end_distance_m": 464.0,
   "midpoint_distance_m": 414.0,
   "start_elevation_m": 58.286486976805215,
   "end_elevation_m": 61.55023905802446,
   "start_xy": [
    36198.540851413425,
    6921779.454775897
   ],
   "end_xy": [
    36277.80135968258,
    6921840.667278591
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 22.901831018972274,
   "start_distance_m": 16.0,
   "end_distance_m": 18.0,
   "midpoint_distance_m": 17.0,
   "start_elevation_m": 25.592413847168963,
   "end_elevation_m": 26.05045046754841,
   "start_xy": [
    35914.79177849613,
    6921793.954614157
   ],
   "end_xy": [
    35916.7180046104,
    6921793.400009358
   ]
  },
  "max_3m": {
   "gradient_pct": 22.771535417290423,
   "start_distance_m": 16.0,
   "end_distance_m": 19.0,
   "midpoint_distance_m": 17.5,
   "start_elevation_m": 25.592413847168963,
   "end_elevation_m": 26.275559909687676,
   "start_xy": [
    35914.79177849613,
    6921793.954614157
   ],
   "end_xy": [
    35917.68111766753,
    6921793.12270696
   ]
  }
 },
 "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": 0.145,
   "obstruction_max_height_m": 11.99,
   "flagged_windows_m": [
    20,
    25,
    50,
    100
   ]
  },
  "review": [],
  "extent": [
   "may_start_earlier"
  ]
 },
 "provenance": {
  "analysis_version": "0.1.0",
  "run_manifest": {
   "manifest_version": "1",
   "code_git_sha": "368c60c29e47d4b421849c953b172a04f7694146",
   "code_git_dirty": "false",
   "analysis_version": "0.1.0",
   "analysis_config_digest": "sha256:8c94015b54267da4",
   "python": "3.14.4",
   "numpy": "2.5.3",
   "rasterio": "1.5.2",
   "pyproj": "3.8.0",
   "laspy": "2.7.0",
   "shapely": "2.1.2",
   "pyosmium": "4.3.1",
   "libosmium": "2.23.1",
   "gdal": "3.12.2",
   "proj": "9.8.1",
   "run_id": "no-b08",
   "road_pbf": "no-b08-block-batch-no-b08.osm.pbf",
   "region_key": "norway",
   "crs": "EPSG:25833",
   "elevation_provider_key": "nhm-no",
   "tile_index": "nhm-window",
   "authority": "nvdb",
   "registry_pbf": "norway-2026-10-01.osm.pbf"
  },
  "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
  ],
  "scale_correction": "point",
  "scale_correction_crs": "EPSG:25833",
  "elevation_crs": "EPSG:25833",
  "elevation_resolution_m": 1.0,
  "elevation_tiles": [
   "data/cache/no/nhm-no_dtm_E35500-N6921500_1m.tif",
   "data/cache/no/nhm-no_dtm_E36000-N6921500_1m.tif"
  ],
  "calculated_at": "2026-10-04T00:36:46+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/no-b08-block-batch-no-b08.osm.pbf",
  "osm_snapshot": "",
  "run_id": "no-b08",
  "elevation_provider": "Kartverket NHM DTM 1 m (laser-covered ground only)",
  "elevation_licence": "CC BY 4.0 \u2014 \u00a9 Kartverket (https://www.kartverket.no/api-og-data/vilkar-for-bruk)",
  "elevation_dataset": "Nasjonal h\u00f8ydemodell (NHM) DTM, 1 m, EPSG:25833, NN2000 (Kartverket), served by the hoydedata.no ImageServer; ground without a laser project is a coarser resampled product and is never measured",
  "elevation_vertical_datum": "NN2000",
  "elevation_tile_ids": [
   "E35500-N6921500",
   "E36000-N6921500"
  ],
  "elevation_blocks": [
   "nhm-dtm-1m"
  ],
  "nhm_laser_projects": [
   {
    "last_flight_date": "2017-08-18",
    "name": "NDH Volda-\u00d8rsta 5pkt 2017",
    "points_per_m2": 5,
    "resolution_m": 0.25,
    "season": "",
    "year": 2017
   },
   {
    "last_flight_date": "2009-01-01",
    "name": "Sunnm\u00f8re 2009",
    "points_per_m2": 2,
    "resolution_m": 0.5,
    "season": "season-unknown",
    "year": 2009
   },
   {
    "last_flight_date": "2023-06-25",
    "name": "Sunnm\u00f8re s\u00f8r 10pkt 2023",
    "points_per_m2": 10,
    "resolution_m": 0.25,
    "season": "",
    "year": 2023
   }
  ],
  "nhm_last_flight_date": "2023-06-25",
  "nhm_flight_season_unknown": [
   "Sunnm\u00f8re 2009"
  ],
  "nhm_retrieved_at": "2026-10-03T18:49:34Z",
  "nhm_note": "laser projects overlapping the route's cells; the mosaic draws on them by its own priority and which project supplied which pixel is not recorded",
  "climb_origin": "discovered",
  "seam_filled_samples": {
   "count": 0,
   "distances_m": []
  },
  "seam_filled_in_maximum": false,
  "structure_own_ways": 1,
  "tunnel_check": "osm tunnel=* ways on 1 own way(s)",
  "tunnel_ranges_m": [],
  "underground_fraction": 0.0,
  "carriageway": {
   "stations": 27,
   "stations_resolved": 27,
   "width_median_m": 6.0,
   "width_p10_m": 4.4,
   "width_min_m": 4.0,
   "width_max_m": 12.0,
   "bounded_share": 0.074,
   "unbounded_share": 0.926,
   "confidence_median": 0.0,
   "width_median_bounded_m": 5.75,
   "window_m": [
    6.0,
    31.0
   ],
   "width_at_max25_m": 6.25,
   "window_stations": 7,
   "single_track": false,
   "single_track_rule": "PROVISIONAL (2026-09-15): width_p10_m <= 3.0 m with bounded_share >= 0.6; recorded, not a rule",
   "status": "ok",
   "source": "dtm",
   "station_m": 25.0,
   "window_station_m": 5.0,
   "halfwidth_m": 6.0,
   "step_m": 0.25,
   "level_tol_m": 0.12,
   "break_min_m": 0.3,
   "stations_failed": 0,
   "hedge_to_hedge": {
    "stations": 27,
    "stations_resolved": 27,
    "width_median_m": 6.0,
    "width_p10_m": 2.65,
    "width_min_m": 1.5,
    "width_max_m": 12.0,
    "bounded_share": 0.556,
    "unbounded_share": 0.444,
    "confidence_median": 0.953,
    "width_median_bounded_m": 3.75,
    "window_m": [
     6.0,
     31.0
    ],
    "width_at_max25_m": 3.75,
    "window_stations": 7,
    "status": "ok",
    "source": "dsm",
    "station_m": 25.0,
    "window_station_m": 5.0,
    "halfwidth_m": 6.0,
    "step_m": 0.25,
    "level_tol_m": 0.5,
    "break_min_m": 0.3,
    "stations_failed": 0
   }
  },
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing"
 },
 "area": {
  "place": "Volda",
  "county": "M\u00f8re og Romsdal",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}