{ "ocl_version": "0.1.0", "name": "Lane near Skarsfjorden", "slug": "discovered-lane-69-9418-18-8576", "confidence": "A", "reported_claims": [], "ladder": [ { "window_m": 2.0, "max_gradient_pct": 22.814716821049075, "diagnostic": true, "flags": [], "start_distance_m": 315.0, "end_distance_m": 317.0, "start_elevation_m": 56.74586159700546, "end_elevation_m": 57.20215593342644, "min_gradient_pct": -6.483826921411406 }, { "window_m": 3.0, "max_gradient_pct": 22.635456277144783, "diagnostic": true, "flags": [], "start_distance_m": 451.0, "end_distance_m": 454.0, "start_elevation_m": 74.21855535059707, "end_elevation_m": 74.89761903891142, "min_gradient_pct": -6.118398032288989 }, { "window_m": 5.0, "max_gradient_pct": 21.991755136415776, "diagnostic": false, "flags": [], "start_distance_m": 311.0, "end_distance_m": 316.0, "start_elevation_m": 55.891843542592106, "end_elevation_m": 56.991431299412895, "min_gradient_pct": -5.7660421607798185 }, { "window_m": 10.0, "max_gradient_pct": 21.40390814290619, "diagnostic": false, "flags": [], "start_distance_m": 309.0, "end_distance_m": 319.0, "start_elevation_m": 55.45652726075726, "end_elevation_m": 57.59691807504788, "min_gradient_pct": -5.30480405851435 }, { "window_m": 20.0, "max_gradient_pct": 20.33454481904421, "diagnostic": false, "flags": [], "start_distance_m": 189.0, "end_distance_m": 209.0, "start_elevation_m": 41.52993888491703, "end_elevation_m": 45.59684784872587, "min_gradient_pct": -4.594452738264323 }, { "window_m": 25.0, "max_gradient_pct": 20.22127916398611, "diagnostic": false, "flags": [], "start_distance_m": 184.0, "end_distance_m": 209.0, "start_elevation_m": 40.541528057729344, "end_elevation_m": 45.59684784872587, "min_gradient_pct": -4.14616933867768 }, { "window_m": 50.0, "max_gradient_pct": 19.322410058373833, "diagnostic": false, "flags": [], "start_distance_m": 162.0, "end_distance_m": 212.0, "start_elevation_m": 36.49393698683214, "end_elevation_m": 46.155142016019056, "min_gradient_pct": -3.1718088587540763 }, { "window_m": 100.0, "max_gradient_pct": 15.710701010593084, "diagnostic": false, "flags": [], "start_distance_m": 128.0, "end_distance_m": 228.0, "start_elevation_m": 32.27987528175582, "end_elevation_m": 47.990576292348905, "min_gradient_pct": -0.09317143767822245 } ], "shape": { "ascent_concentration": 0.328, "concentration_window_frac": 0.25, "longest_pitch_10pct_m": 100.0, "shape_class": "sustained" }, "length_m": 569.658119901207, "start_elevation_m": 16.860538807572365, "end_elevation_m": 76.46720182399417, "endpoint_gain_m": 59.606663016421805, "overall_gradient_pct": 10.463585251230878, "accumulated_ascent_m": 61.47011781197045, "window_maxima": { "max_5m": { "gradient_pct": 21.991755136415776, "start_distance_m": 311.0, "end_distance_m": 316.0, "midpoint_distance_m": 313.5, "start_elevation_m": 55.891843542592106, "end_elevation_m": 56.991431299412895, "start_xy": [ 647607.7943211324, 7764050.6194469035 ], "end_xy": [ 647606.6875142265, 7764045.754726359 ] }, "max_10m": { "gradient_pct": 21.40390814290619, "start_distance_m": 309.0, "end_distance_m": 319.0, "midpoint_distance_m": 314.0, "start_elevation_m": 55.45652726075726, "end_elevation_m": 57.59691807504788, "start_xy": [ 647607.3813357103, 7764052.576070377 ], "end_xy": [ 647605.551294913, 7764043.0172386 ] }, "max_20m": { "gradient_pct": 20.33454481904421, "start_distance_m": 189.0, "end_distance_m": 209.0, "midpoint_distance_m": 199.0, "start_elevation_m": 41.52993888491703, "end_elevation_m": 45.59684784872587, "start_xy": [ 647503.2813532822, 7764023.752768607 ], "end_xy": [ 647523.0841458621, 7764025.40989526 ] }, "max_25m": { "gradient_pct": 20.22127916398611, "start_distance_m": 184.0, "end_distance_m": 209.0, "midpoint_distance_m": 196.5, "start_elevation_m": 40.541528057729344, "end_elevation_m": 45.59684784872587, "start_xy": [ 647498.3960584006, 7764024.604444555 ], "end_xy": [ 647523.0841458621, 7764025.40989526 ] }, "max_50m": { "gradient_pct": 19.322410058373833, "start_distance_m": 162.0, "end_distance_m": 212.0, "midpoint_distance_m": 187.0, "start_elevation_m": 36.49393698683214, "end_elevation_m": 46.155142016019056, "start_xy": [ 647482.942029215, 7764039.055141779 ], "end_xy": [ 647525.8944866776, 7764026.458502531 ] }, "max_100m": { "gradient_pct": 15.710701010593084, "start_distance_m": 128.0, "end_distance_m": 228.0, "midpoint_distance_m": 178.0, "start_elevation_m": 32.27987528175582, "end_elevation_m": 47.990576292348905, "start_xy": [ 647467.1292114159, 7764069.102231627 ], "end_xy": [ 647540.600230593, 7764032.705037446 ] } }, "window_minima": { "min_5m": { "gradient_pct": -5.7660421607798185, "start_distance_m": 522.0, "end_distance_m": 527.0, "midpoint_distance_m": 524.5, "start_elevation_m": 77.83885536337766, "end_elevation_m": 77.55055325533867, "start_xy": [ 647595.0855246267, 7763844.096734736 ], "end_xy": [ 647594.5198900552, 7763839.129503852 ] }, "min_10m": { "gradient_pct": -5.30480405851435, "start_distance_m": 522.0, "end_distance_m": 532.0, "midpoint_distance_m": 527.0, "start_elevation_m": 77.83885536337766, "end_elevation_m": 77.30837495752623, "start_xy": [ 647595.0855246267, 7763844.096734736 ], "end_xy": [ 647593.9542554837, 7763834.162272967 ] }, "min_20m": { "gradient_pct": -4.594452738264323, "start_distance_m": 522.0, "end_distance_m": 542.0, "midpoint_distance_m": 532.0, "start_elevation_m": 77.83885536337766, "end_elevation_m": 76.9199648157248, "start_xy": [ 647595.0855246267, 7763844.096734736 ], "end_xy": [ 647591.9665573727, 7763824.371757711 ] }, "min_25m": { "gradient_pct": -4.14616933867768, "start_distance_m": 518.0, "end_distance_m": 543.0, "midpoint_distance_m": 530.5, "start_elevation_m": 77.92319489281205, "end_elevation_m": 76.88665255814263, "start_xy": [ 647595.5380322839, 7763848.070519444 ], "end_xy": [ 647591.7486912846, 7763823.395915842 ] }, "min_50m": { "gradient_pct": -3.1718088587540763, "start_distance_m": 504.0, "end_distance_m": 554.0, "midpoint_distance_m": 529.0, "start_elevation_m": 78.20537208069715, "end_elevation_m": 76.61946765132011, "start_xy": [ 647597.0399860555, 7763861.9876945205 ], "end_xy": [ 647588.0889808222, 7763813.061003903 ] }, "min_100m": { "gradient_pct": -0.09317143767822245, "start_distance_m": 469.0, "end_distance_m": 569.0, "midpoint_distance_m": 519.0, "start_elevation_m": 76.60060208485166, "end_elevation_m": 76.50743064717344, "start_xy": [ 647595.1566234219, 7763896.767771876 ], "end_xy": [ 647582.3488464446, 7763799.20493051 ] } }, "diagnostic_window_maxima": { "max_2m": { "gradient_pct": 22.814716821049075, "start_distance_m": 315.0, "end_distance_m": 317.0, "midpoint_distance_m": 316.0, "start_elevation_m": 56.74586159700546, "end_elevation_m": 57.20215593342644, "start_xy": [ 647606.9184848309, 7764046.727549916 ], "end_xy": [ 647606.4565436223, 7764044.781902802 ] }, "max_3m": { "gradient_pct": 22.635456277144783, "start_distance_m": 451.0, "end_distance_m": 454.0, "midpoint_distance_m": 452.5, "start_elevation_m": 74.21855535059707, "end_elevation_m": 74.89761903891142, "start_xy": [ 647592.4277819205, 7763914.557288622 ], "end_xy": [ 647592.8823672347, 7763911.592335158 ] } }, "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": 0.0, "obstruction_max_height_m": 0.15, "flagged_windows_m": [] }, "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-b19", "road_pbf": "no-b19-block-batch-no-b19.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_E647000-N7763500_1m.tif", "data/cache/no/nhm-no_dtm_E647000-N7764000_1m.tif", "data/cache/no/nhm-no_dtm_E647500-N7763500_1m.tif", "data/cache/no/nhm-no_dtm_E647500-N7764000_1m.tif" ], "calculated_at": "2026-10-04T01:20:52+00:00", "road_source": "OpenStreetMap (local PBF extract)", "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL", "osm_pbf_path": "data/cache/pbf/no-b19-block-batch-no-b19.osm.pbf", "osm_snapshot": "", "run_id": "no-b19", "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": [ "E647000-N7763500", "E647000-N7764000", "E647500-N7763500", "E647500-N7764000" ], "elevation_blocks": [ "nhm-dtm-1m" ], "nhm_laser_projects": [ { "last_flight_date": "2019-09-09", "name": "NDH Ringvass\u00f8ya 2pkt 2019", "points_per_m2": 2, "resolution_m": 0.5, "season": "", "year": 2019 } ], "nhm_last_flight_date": "2019-09-09", "nhm_retrieved_at": "2026-10-04T00:57:46Z", "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": 29, "stations_resolved": 29, "width_median_m": 4.25, "width_p10_m": 3.25, "width_min_m": 3.0, "width_max_m": 11.0, "bounded_share": 0.069, "unbounded_share": 0.931, "confidence_median": 0.0, "width_median_bounded_m": 3.88, "window_m": [ 184.0, 209.0 ], "width_at_max25_m": 4.5, "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": 29, "stations_resolved": 29, "width_median_m": 9.25, "width_p10_m": 7.2, "width_min_m": 6.25, "width_max_m": 12.0, "bounded_share": 0.517, "unbounded_share": 0.483, "confidence_median": 0.854, "width_median_bounded_m": 8.0, "window_m": [ 184.0, 209.0 ], "width_at_max25_m": 8.75, "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 } }, "naming_note": "birth-named at adoption (nearest OSM village/hamlet/locality node ('Skarsfjorden'))", "license": "ODbL-1.0", "license_url": "https://howsteep.org/licensing" }, "area": { "place": "Troms\u00f8", "county": "Troms", "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)" } }