{
 "ocl_version": "0.1.0",
 "name": "Klettelvbrua (Henna)",
 "slug": "discovered-lane-63-1270-8-3879",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 47.51082989048214,
   "diagnostic": true,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 47.0,
   "end_distance_m": 49.0,
   "start_elevation_m": 62.08180477014554,
   "end_elevation_m": 63.03202136795518,
   "min_gradient_pct": -26.06693969955245
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 40.80310521932873,
   "diagnostic": true,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 47.0,
   "end_distance_m": 50.0,
   "start_elevation_m": 62.08180477014554,
   "end_elevation_m": 63.3058979267254,
   "min_gradient_pct": -20.081120354564536
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 31.68819373310953,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 377.0,
   "end_distance_m": 382.0,
   "start_elevation_m": 81.10421896246095,
   "end_elevation_m": 82.68862864911642,
   "min_gradient_pct": -14.438058281653667
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 26.551488158005014,
   "diagnostic": false,
   "flags": [
    "structure_excluded_min",
    "canopy_or_structure"
   ],
   "start_distance_m": 375.0,
   "end_distance_m": 385.0,
   "start_elevation_m": 80.71958382378584,
   "end_elevation_m": 83.37473263958634,
   "min_gradient_pct": -7.876917029809505,
   "suppressed_min_gradient_pct": -9.259202758033993,
   "suppressed_min_location_m": [
    19.0,
    29.0
   ]
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 21.422549556121524,
   "diagnostic": false,
   "flags": [
    "structure_excluded_min",
    "canopy_or_structure"
   ],
   "start_distance_m": 372.0,
   "end_distance_m": 392.0,
   "start_elevation_m": 80.26832217896406,
   "end_elevation_m": 84.55283209018836,
   "min_gradient_pct": -4.7111250785805225,
   "suppressed_min_gradient_pct": -5.783356546788241,
   "suppressed_min_location_m": [
    9.0,
    29.0
   ]
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 20.179091101893732,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 376.0,
   "end_distance_m": 401.0,
   "start_elevation_m": 80.874742464651,
   "end_elevation_m": 85.91951524012444,
   "min_gradient_pct": -4.624750038509717
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 18.70755274687241,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 414.0,
   "end_distance_m": 464.0,
   "start_elevation_m": 87.85372076539258,
   "end_elevation_m": 97.20749713882878,
   "min_gradient_pct": -2.1640988221131465
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 18.392986496910012,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 371.0,
   "end_distance_m": 471.0,
   "start_elevation_m": 80.10598389003395,
   "end_elevation_m": 98.49897038694397,
   "min_gradient_pct": -0.46905366630493006
  }
 ],
 "shape": {
  "ascent_concentration": 0.456,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 119.0,
  "shape_class": "stepped"
 },
 "length_m": 941.9999993480503,
 "start_elevation_m": 61.68241782063394,
 "end_elevation_m": 117.46214826893538,
 "endpoint_gain_m": 55.77973044830144,
 "overall_gradient_pct": 5.921415125998523,
 "accumulated_ascent_m": 67.05254711097837,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 31.68819373310953,
   "start_distance_m": 377.0,
   "end_distance_m": 382.0,
   "midpoint_distance_m": 379.5,
   "start_elevation_m": 81.10421896246095,
   "end_elevation_m": 82.68862864911642,
   "start_xy": [
    166834.19603475073,
    7016913.091712339
   ],
   "end_xy": [
    166839.20055911195,
    7016913.092956373
   ]
  },
  "max_10m": {
   "gradient_pct": 26.551488158005014,
   "start_distance_m": 375.0,
   "end_distance_m": 385.0,
   "midpoint_distance_m": 380.0,
   "start_elevation_m": 80.71958382378584,
   "end_elevation_m": 83.37473263958634,
   "start_xy": [
    166832.194189036,
    7016913.07451481
   ],
   "end_xy": [
    166842.20318882822,
    7016913.054286045
   ]
  },
  "max_20m": {
   "gradient_pct": 21.422549556121524,
   "start_distance_m": 372.0,
   "end_distance_m": 392.0,
   "midpoint_distance_m": 382.0,
   "start_elevation_m": 80.26832217896406,
   "end_elevation_m": 84.55283209018836,
   "start_xy": [
    166829.1914204639,
    7016913.048718516
   ],
   "end_xy": [
    166849.20932483286,
    7016912.96405528
   ]
  },
  "max_25m": {
   "gradient_pct": 20.179091101893732,
   "start_distance_m": 376.0,
   "end_distance_m": 401.0,
   "midpoint_distance_m": 388.5,
   "start_elevation_m": 80.874742464651,
   "end_elevation_m": 85.91951524012444,
   "start_xy": [
    166833.19511189338,
    7016913.083113574
   ],
   "end_xy": [
    166858.21721398167,
    7016912.848044297
   ]
  },
  "max_50m": {
   "gradient_pct": 18.70755274687241,
   "start_distance_m": 414.0,
   "end_distance_m": 464.0,
   "midpoint_distance_m": 439.0,
   "start_elevation_m": 87.85372076539258,
   "end_elevation_m": 97.20749713882878,
   "start_xy": [
    166871.22428576637,
    7016912.485818159
   ],
   "end_xy": [
    166921.20918733868,
    7016910.074329412
   ]
  },
  "max_100m": {
   "gradient_pct": 18.392986496910012,
   "start_distance_m": 371.0,
   "end_distance_m": 471.0,
   "midpoint_distance_m": 421.0,
   "start_elevation_m": 80.10598389003395,
   "end_elevation_m": 98.49897038694397,
   "start_xy": [
    166828.19049760656,
    7016913.040119751
   ],
   "end_xy": [
    166928.19721383392,
    7016909.562951288
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -14.438058281653667,
   "start_distance_m": 23.0,
   "end_distance_m": 28.0,
   "midpoint_distance_m": 25.5,
   "start_elevation_m": 61.33779354655299,
   "end_elevation_m": 60.615890632470304,
   "start_xy": [
    166484.2234143697,
    7016865.253501104
   ],
   "end_xy": [
    166489.04480879792,
    7016866.596001344
   ]
  },
  "min_10m": {
   "gradient_pct": -7.876917029809505,
   "start_distance_m": 671.0,
   "end_distance_m": 681.0,
   "midpoint_distance_m": 676.0,
   "start_elevation_m": 112.29990984961029,
   "end_elevation_m": 111.51221814662934,
   "start_xy": [
    167126.02841263116,
    7016880.095599861
   ],
   "end_xy": [
    167135.81424644365,
    7016877.991119922
   ]
  },
  "min_20m": {
   "gradient_pct": -4.7111250785805225,
   "start_distance_m": 661.0,
   "end_distance_m": 681.0,
   "midpoint_distance_m": 671.0,
   "start_elevation_m": 112.45444316234544,
   "end_elevation_m": 111.51221814662934,
   "start_xy": [
    167116.24129467361,
    7016882.193943528
   ],
   "end_xy": [
    167135.81424644365,
    7016877.991119922
   ]
  },
  "min_25m": {
   "gradient_pct": -4.624750038509717,
   "start_distance_m": 655.0,
   "end_distance_m": 680.0,
   "midpoint_distance_m": 667.5,
   "start_elevation_m": 112.69357169337495,
   "end_elevation_m": 111.53738418374752,
   "start_xy": [
    167110.35594507548,
    7016883.3904527435
   ],
   "end_xy": [
    167134.8356630624,
    7016878.201567916
   ]
  },
  "min_50m": {
   "gradient_pct": -2.1640988221131465,
   "start_distance_m": 795.0,
   "end_distance_m": 845.0,
   "midpoint_distance_m": 820.0,
   "start_elevation_m": 115.07163145447157,
   "end_elevation_m": 113.989582043415,
   "start_xy": [
    167247.3727519061,
    7016854.00004863
   ],
   "end_xy": [
    167296.3019209686,
    7016843.47764894
   ]
  },
  "min_100m": {
   "gradient_pct": -0.46905366630493006,
   "start_distance_m": 777.0,
   "end_distance_m": 877.0,
   "midpoint_distance_m": 827.0,
   "start_elevation_m": 114.93461992887933,
   "end_elevation_m": 114.4655662625744,
   "start_xy": [
    167229.75825104362,
    7016857.788112518
   ],
   "end_xy": [
    167327.61658916858,
    7016836.743313139
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 47.51082989048214,
   "start_distance_m": 47.0,
   "end_distance_m": 49.0,
   "midpoint_distance_m": 48.0,
   "start_elevation_m": 62.08180477014554,
   "end_elevation_m": 63.03202136795518,
   "start_xy": [
    166507.3810404618,
    7016871.64140172
   ],
   "end_xy": [
    166509.32134754918,
    7016872.134261314
   ]
  },
  "max_3m": {
   "gradient_pct": 40.80310521932873,
   "start_distance_m": 47.0,
   "end_distance_m": 50.0,
   "midpoint_distance_m": 48.5,
   "start_elevation_m": 62.08180477014554,
   "end_elevation_m": 63.3058979267254,
   "start_xy": [
    166507.3810404618,
    7016871.64140172
   ],
   "end_xy": [
    166510.2915010929,
    7016872.38069111
   ]
  }
 },
 "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": 0.022,
   "windows_resited": [],
   "windows_unresolved": [],
   "minima_resited": [
    10.0,
    20.0
   ],
   "minima_unresolved": []
  },
  "overhead_obstruction": {
   "obstruction_threshold_m": 2.0,
   "obstructed_fraction": 0.52,
   "obstruction_max_height_m": 17.15,
   "flagged_windows_m": [
    2,
    3,
    5,
    10,
    20,
    25,
    50,
    100
   ]
  },
  "excluded_ranges_m": [
   [
    0.0,
    20.0
   ]
  ],
  "review": [],
  "extent": []
 },
 "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-b09",
   "road_pbf": "no-b09-block-batch-no-b09.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_E166000-N7016500_1m.tif",
   "data/cache/no/nhm-no_dtm_E166500-N7016500_1m.tif",
   "data/cache/no/nhm-no_dtm_E167000-N7016500_1m.tif",
   "data/cache/no/nhm-no_dtm_E167500-N7016500_1m.tif"
  ],
  "calculated_at": "2026-10-04T03:34:00+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/no-b09-block-batch-no-b09.osm.pbf",
  "osm_snapshot": "",
  "run_id": "no-b09",
  "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": [
   "E166000-N7016500",
   "E166500-N7016500",
   "E167000-N7016500",
   "E167500-N7016500"
  ],
  "elevation_blocks": [
   "nhm-dtm-1m"
  ],
  "nhm_laser_projects": [
   {
    "last_flight_date": "2012-11-27",
    "name": "E39 Klettelva-Hestnes 2012",
    "points_per_m2": 5,
    "resolution_m": 0.25,
    "season": "snow-season",
    "year": 2012
   },
   {
    "last_flight_date": "2009-01-01",
    "name": "Halsa-Aure 2009",
    "points_per_m2": 2,
    "resolution_m": 0.5,
    "season": "season-unknown",
    "year": 2009
   },
   {
    "last_flight_date": "2016-10-04",
    "name": "NDH Halsa-Tingvoll 2pkt 2016",
    "points_per_m2": 2,
    "resolution_m": 0.5,
    "season": "",
    "year": 2016
   },
   {
    "last_flight_date": "2014-01-01",
    "name": "Tr\u00f8ndelag del1 3pkt 2014",
    "points_per_m2": 1,
    "resolution_m": 1,
    "season": "season-unknown",
    "year": 2014
   }
  ],
  "nhm_last_flight_date": "2016-10-04",
  "nhm_snow_season_flights": [
   "E39 Klettelva-Hestnes 2012"
  ],
  "nhm_flight_season_unknown": [
   "Halsa-Aure 2009",
   "Tr\u00f8ndelag del1 3pkt 2014"
  ],
  "nhm_retrieved_at": "2026-10-03T22:15:38Z",
  "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",
  "route_summit_trim_m": 448.4,
  "route_summit_trim_loss_m": 18.7,
  "climb_origin": "discovered",
  "seam_filled_samples": {
   "count": 0,
   "distances_m": []
  },
  "seam_filled_in_maximum": false,
  "structure_own_ways": 2,
  "tunnel_check": "osm tunnel=* ways on 2 own way(s)",
  "tunnel_ranges_m": [],
  "underground_fraction": 0.0,
  "structure_mask_ranges_m": [
   [
    0.0,
    15.0
   ]
  ],
  "carriageway": {
   "stations": 44,
   "stations_resolved": 44,
   "width_median_m": 7.88,
   "width_p10_m": 3.47,
   "width_min_m": 2.5,
   "width_max_m": 12.0,
   "bounded_share": 0.045,
   "unbounded_share": 0.955,
   "confidence_median": 0.0,
   "width_median_bounded_m": 3.25,
   "window_m": [
    376.0,
    401.0
   ],
   "width_at_max25_m": 8.0,
   "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": 44,
    "stations_resolved": 44,
    "width_median_m": 2.62,
    "width_p10_m": 1.25,
    "width_min_m": 1.0,
    "width_max_m": 12.0,
    "bounded_share": 0.795,
    "unbounded_share": 0.205,
    "confidence_median": 1.0,
    "width_median_bounded_m": 2.25,
    "window_m": [
     376.0,
     401.0
    ],
    "width_at_max25_m": 3.25,
    "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
   }
  },
  "naming_note": "birth-named at adoption (named from its own OSM street ('Klettelvbrua'), anchored to 'Henna' (Peter, 2026-09-30))",
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing"
 },
 "area": {
  "place": "Heim",
  "county": "Tr\u00f8ndelag",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}