{ "ocl_version": "0.1.0", "name": "Lane near Fjellbu", "slug": "discovered-lane-68-1665-17-5250", "confidence": "B", "reported_claims": [], "ladder": [ { "window_m": 2.0, "max_gradient_pct": 35.98234148021788, "diagnostic": true, "flags": [ "structure_excluded", "texture_excluded", "texture_excluded" ], "start_distance_m": 8336.0, "end_distance_m": 8338.0, "start_elevation_m": 618.6103023783546, "end_elevation_m": 619.329949207959, "min_gradient_pct": -31.344250971062593, "suppressed_max_gradient_pct": 62.543342669272306, "suppressed_location_m": [ 8308.0, 8310.0 ] }, { "window_m": 3.0, "max_gradient_pct": 27.185206915711053, "diagnostic": true, "flags": [ "structure_excluded", "texture_excluded", "texture_excluded" ], "start_distance_m": 8335.0, "end_distance_m": 8338.0, "start_elevation_m": 618.5143930004876, "end_elevation_m": 619.329949207959, "min_gradient_pct": -29.617113164241953, "suppressed_max_gradient_pct": 50.70479143034845, "suppressed_location_m": [ 8308.0, 8311.0 ] }, { "window_m": 5.0, "max_gradient_pct": 18.634177890118053, "diagnostic": false, "flags": [ "texture_excluded", "texture_excluded", "canopy_or_structure" ], "start_distance_m": 191.0, "end_distance_m": 196.0, "start_elevation_m": 119.5478388750945, "end_elevation_m": 120.4795477696004, "min_gradient_pct": -25.55487948909331, "suppressed_max_gradient_pct": 36.50846404525282, "suppressed_location_m": [ 3499.0, 3504.0 ] }, { "window_m": 10.0, "max_gradient_pct": 16.852085803615182, "diagnostic": false, "flags": [ "texture_excluded" ], "start_distance_m": 4158.0, "end_distance_m": 4168.0, "start_elevation_m": 518.3856213813436, "end_elevation_m": 520.0708299617052, "min_gradient_pct": -15.803680482404161, "suppressed_max_gradient_pct": 25.790309112256864, "suppressed_location_m": [ 3498.0, 3508.0 ] }, { "window_m": 20.0, "max_gradient_pct": 15.231148953943574, "diagnostic": false, "flags": [ "texture_excluded", "canopy_or_structure" ], "start_distance_m": 191.0, "end_distance_m": 211.0, "start_elevation_m": 119.5478388750945, "end_elevation_m": 122.59406866588321, "min_gradient_pct": -9.762260225003274, "suppressed_max_gradient_pct": 19.85341230884245, "suppressed_location_m": [ 3498.0, 3518.0 ] }, { "window_m": 25.0, "max_gradient_pct": 13.698994550264558, "diagnostic": false, "flags": [ "texture_excluded", "canopy_or_structure" ], "start_distance_m": 191.0, "end_distance_m": 216.0, "start_elevation_m": 119.5478388750945, "end_elevation_m": 122.97258751266064, "min_gradient_pct": -9.562238705595064, "suppressed_max_gradient_pct": 17.963250935504675, "suppressed_location_m": [ 3498.0, 3523.0 ] }, { "window_m": 50.0, "max_gradient_pct": 12.067822513898818, "diagnostic": false, "flags": [ "texture_excluded" ], "start_distance_m": 761.0, "end_distance_m": 811.0, "start_elevation_m": 178.59763843938237, "end_elevation_m": 184.63154969633177, "min_gradient_pct": -8.621358992540081, "suppressed_max_gradient_pct": 13.413081091541585, "suppressed_location_m": [ 3498.0, 3548.0 ] }, { "window_m": 100.0, "max_gradient_pct": 11.392073921085398, "diagnostic": false, "flags": [ "structure_excluded_min" ], "start_distance_m": 4073.0, "end_distance_m": 4173.0, "start_elevation_m": 509.29538754397686, "end_elevation_m": 520.6874614650623, "min_gradient_pct": -6.351165707687528, "suppressed_min_gradient_pct": -6.551739625060918, "suppressed_min_location_m": [ 8806.0, 8906.0 ] } ], "shape": { "ascent_concentration": 0.401, "concentration_window_frac": 0.25, "longest_pitch_10pct_m": 107.0, "shape_class": "sustained" }, "length_m": 8906.03734375327, "start_elevation_m": 100.60881266003685, "end_elevation_m": 610.7303115918264, "endpoint_gain_m": 510.1214989317896, "overall_gradient_pct": 5.727816752189915, "accumulated_ascent_m": 566.263204791839, "window_maxima": { "max_5m": { "gradient_pct": 18.634177890118053, "start_distance_m": 191.0, "end_distance_m": 196.0, "midpoint_distance_m": 193.5, "start_elevation_m": 119.5478388750945, "end_elevation_m": 120.4795477696004, "start_xy": [ 605622.5245313419, 7562970.909796225 ], "end_xy": [ 605619.539157221, 7562974.892609238 ] }, "max_10m": { "gradient_pct": 16.852085803615182, "start_distance_m": 4158.0, "end_distance_m": 4168.0, "midpoint_distance_m": 4163.0, "start_elevation_m": 518.3856213813436, "end_elevation_m": 520.0708299617052, "start_xy": [ 604535.7333158618, 7563372.9027238265 ], "end_xy": [ 604534.1333688458, 7563363.048218202 ] }, "max_20m": { "gradient_pct": 15.231148953943574, "start_distance_m": 191.0, "end_distance_m": 211.0, "midpoint_distance_m": 201.0, "start_elevation_m": 119.5478388750945, "end_elevation_m": 122.59406866588321, "start_xy": [ 605622.5245313419, 7562970.909796225 ], "end_xy": [ 605610.852006826, 7562987.116145832 ] }, "max_25m": { "gradient_pct": 13.698994550264558, "start_distance_m": 191.0, "end_distance_m": 216.0, "midpoint_distance_m": 203.5, "start_elevation_m": 119.5478388750945, "end_elevation_m": 122.97258751266064, "start_xy": [ 605622.5245313419, 7562970.909796225 ], "end_xy": [ 605607.9562900276, 7562991.190658031 ] }, "max_50m": { "gradient_pct": 12.067822513898818, "start_distance_m": 761.0, "end_distance_m": 811.0, "midpoint_distance_m": 786.0, "start_elevation_m": 178.59763843938237, "end_elevation_m": 184.63154969633177, "start_xy": [ 605246.9611757149, 7563257.368821128 ], "end_xy": [ 605234.6688673643, 7563303.541784213 ] }, "max_100m": { "gradient_pct": 11.392073921085398, "start_distance_m": 4073.0, "end_distance_m": 4173.0, "midpoint_distance_m": 4123.0, "start_elevation_m": 509.29538754397686, "end_elevation_m": 520.6874614650623, "start_xy": [ 604544.1877570278, 7563457.458477386 ], "end_xy": [ 604533.1109859613, 7563358.155221147 ] } }, "window_minima": { "min_5m": { "gradient_pct": -25.55487948909331, "start_distance_m": 8542.0, "end_distance_m": 8547.0, "midpoint_distance_m": 8544.5, "start_elevation_m": 622.6030314833612, "end_elevation_m": 621.3252875089065, "start_xy": [ 603250.1301388235, 7559714.99215656 ], "end_xy": [ 603254.4885111748, 7559712.544479888 ] }, "min_10m": { "gradient_pct": -15.803680482404161, "start_distance_m": 8292.0, "end_distance_m": 8302.0, "midpoint_distance_m": 8297.0, "start_elevation_m": 619.4595869513822, "end_elevation_m": 617.8792189031418, "start_xy": [ 603046.8932097678, 7559854.011863113 ], "end_xy": [ 603054.5153553187, 7559847.542998627 ] }, "min_20m": { "gradient_pct": -9.762260225003274, "start_distance_m": 8086.0, "end_distance_m": 8106.0, "midpoint_distance_m": 8096.0, "start_elevation_m": 622.4317465439418, "end_elevation_m": 620.4792944989412, "start_xy": [ 602958.6824432075, 7560031.720397033 ], "end_xy": [ 602962.0921494712, 7560012.0392146045 ] }, "min_25m": { "gradient_pct": -9.562238705595064, "start_distance_m": 8085.0, "end_distance_m": 8110.0, "midpoint_distance_m": 8097.5, "start_elevation_m": 622.517754536036, "end_elevation_m": 620.1271948596373, "start_xy": [ 602958.5616632932, 7560032.712804057 ], "end_xy": [ 602962.932338488, 7560008.129555451 ] }, "min_50m": { "gradient_pct": -8.621358992540081, "start_distance_m": 8071.0, "end_distance_m": 8121.0, "midpoint_distance_m": 8096.0, "start_elevation_m": 623.6187091372219, "end_elevation_m": 619.3080296409519, "start_xy": [ 602956.8707444919, 7560046.606502393 ], "end_xy": [ 602965.3286215523, 7559997.397941199 ] }, "min_100m": { "gradient_pct": -6.351165707687528, "start_distance_m": 8050.0, "end_distance_m": 8150.0, "midpoint_distance_m": 8100.0, "start_elevation_m": 624.5767499814383, "end_elevation_m": 618.2255842737508, "start_xy": [ 602954.33436629, 7560067.447049897 ], "end_xy": [ 602972.3718147245, 7559969.274305027 ] } }, "diagnostic_window_maxima": { "max_2m": { "gradient_pct": 35.98234148021788, "start_distance_m": 8336.0, "end_distance_m": 8338.0, "midpoint_distance_m": 8337.0, "start_elevation_m": 618.6103023783546, "end_elevation_m": 619.329949207959, "start_xy": [ 603080.1064216016, 7559825.171736101 ], "end_xy": [ 603081.6117784418, 7559823.855779481 ] }, "max_3m": { "gradient_pct": 27.185206915711053, "start_distance_m": 8335.0, "end_distance_m": 8338.0, "midpoint_distance_m": 8336.5, "start_elevation_m": 618.5143930004876, "end_elevation_m": 619.329949207959, "start_xy": [ 603079.3537431816, 7559825.82971441 ], "end_xy": [ 603081.6117784418, 7559823.855779481 ] } }, "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": 0.009, "windows_resited": [ 2.0, 3.0 ], "windows_unresolved": [], "minima_resited": [ 100.0 ], "minima_unresolved": [] }, "texture_suppression": { "masked_fraction": 0.013, "windows_resited": [ 2.0, 3.0, 5.0 ], "windows_unresolved": [], "minima_resited": [], "minima_unresolved": [] }, "texture_windows": { "rounds": 2, "windows_masked": [ { "window_m": 25.0, "start_m": 3498.0, "end_m": 3523.0, "raw_pct": 17.96, "reason": "hump" }, { "window_m": 20.0, "start_m": 3498.0, "end_m": 3518.0, "raw_pct": 19.85, "reason": "hump" }, { "window_m": 10.0, "start_m": 3498.0, "end_m": 3508.0, "raw_pct": 25.79, "reason": "hump" }, { "window_m": 5.0, "start_m": 3499.0, "end_m": 3504.0, "raw_pct": 36.51, "reason": "hump+short-step" }, { "window_m": 5.0, "start_m": 8268.0, "end_m": 8273.0, "raw_pct": 24.39, "reason": "short-step" } ], "advisory": [], "unresolved": [] }, "overhead_obstruction": { "obstruction_threshold_m": 2.0, "obstructed_fraction": 0.008, "obstruction_max_height_m": 12.37, "flagged_windows_m": [ 5, 20, 25 ] }, "excluded_ranges_m": [ [ 0.0, 46.0 ], [ 3496.0, 3525.0 ], [ 8266.0, 8275.0 ], [ 8307.0, 8312.0 ], [ 8883.0, 8906.0 ] ], "review": [], "extent": [ "may_start_earlier", "descends_at_end" ], "suggested_summit_cut_m": 7136.0, "trailing_descent_m": 28.5 }, "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-b17", "road_pbf": "no-b17-block-batch-no-b17.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_E602500-N7559500_1m.tif", "data/cache/no/nhm-no_dtm_E602500-N7560000_1m.tif", "data/cache/no/nhm-no_dtm_E602500-N7560500_1m.tif", "data/cache/no/nhm-no_dtm_E602500-N7561000_1m.tif", "data/cache/no/nhm-no_dtm_E603000-N7559500_1m.tif", "data/cache/no/nhm-no_dtm_E603000-N7560000_1m.tif", "data/cache/no/nhm-no_dtm_E603000-N7560500_1m.tif", "data/cache/no/nhm-no_dtm_E603000-N7561000_1m.tif", "data/cache/no/nhm-no_dtm_E603000-N7561500_1m.tif", "data/cache/no/nhm-no_dtm_E603000-N7562000_1m.tif", "data/cache/no/nhm-no_dtm_E603500-N7559500_1m.tif", "data/cache/no/nhm-no_dtm_E603500-N7561000_1m.tif", "data/cache/no/nhm-no_dtm_E603500-N7561500_1m.tif", "data/cache/no/nhm-no_dtm_E603500-N7562000_1m.tif", "data/cache/no/nhm-no_dtm_E603500-N7562500_1m.tif", "data/cache/no/nhm-no_dtm_E604000-N7562000_1m.tif", "data/cache/no/nhm-no_dtm_E604000-N7562500_1m.tif", "data/cache/no/nhm-no_dtm_E604000-N7563000_1m.tif", "data/cache/no/nhm-no_dtm_E604000-N7563500_1m.tif", "data/cache/no/nhm-no_dtm_E604500-N7562000_1m.tif", "data/cache/no/nhm-no_dtm_E604500-N7562500_1m.tif", "data/cache/no/nhm-no_dtm_E604500-N7563000_1m.tif", "data/cache/no/nhm-no_dtm_E604500-N7563500_1m.tif", "data/cache/no/nhm-no_dtm_E605000-N7562000_1m.tif", "data/cache/no/nhm-no_dtm_E605000-N7562500_1m.tif", "data/cache/no/nhm-no_dtm_E605000-N7563000_1m.tif", "data/cache/no/nhm-no_dtm_E605000-N7563500_1m.tif", "data/cache/no/nhm-no_dtm_E605500-N7562500_1m.tif", "data/cache/no/nhm-no_dtm_E605500-N7563000_1m.tif" ], "calculated_at": "2026-10-04T07:57:52+00:00", "road_source": "OpenStreetMap (local PBF extract)", "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL", "osm_pbf_path": "data/cache/pbf/no-b17-block-batch-no-b17.osm.pbf", "osm_snapshot": "", "run_id": "no-b17", "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": [ "E602500-N7559500", "E602500-N7560000", "E602500-N7560500", "E602500-N7561000", "E603000-N7559500", "E603000-N7560000", "E603000-N7560500", "E603000-N7561000", "E603000-N7561500", "E603000-N7562000", "E603500-N7559500", "E603500-N7561000", "E603500-N7561500", "E603500-N7562000", "E603500-N7562500", "E604000-N7562000", "E604000-N7562500", "E604000-N7563000", "E604000-N7563500", "E604500-N7562000", "E604500-N7562500", "E604500-N7563000", "E604500-N7563500", "E605000-N7562000", "E605000-N7562500", "E605000-N7563000", "E605000-N7563500", "E605500-N7562500", "E605500-N7563000" ], "elevation_blocks": [ "nhm-dtm-1m" ], "nhm_laser_projects": [ { "last_flight_date": "2019-09-28", "name": "NDH Narvik s\u00f8r 2pkt 2019", "points_per_m2": 2, "resolution_m": 0.5, "season": "", "year": 2019 }, { "last_flight_date": "2025-07-19", "name": "Narvik \u00d8st 10pkt 2025", "points_per_m2": 10, "resolution_m": 0.25, "season": "", "year": 2025 } ], "nhm_last_flight_date": "2025-07-19", "nhm_retrieved_at": "2026-10-04T07:37:00Z", "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, "structure_mask_ranges_m": [ [ 0.0, 15.0 ], [ 8888.7, 8918.7 ] ], "mask_basin_extension_m": 26.0, "carriageway": { "stations": 363, "stations_resolved": 363, "width_median_m": 4.5, "width_p10_m": 3.0, "width_min_m": 1.0, "width_max_m": 12.0, "bounded_share": 0.377, "unbounded_share": 0.623, "confidence_median": 0.0, "width_median_bounded_m": 4.5, "window_m": [ 191.0, 216.0 ], "width_at_max25_m": 1.25, "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": 363, "stations_resolved": 363, "width_median_m": 7.75, "width_p10_m": 5.75, "width_min_m": 0.0, "width_max_m": 12.0, "bounded_share": 0.738, "unbounded_share": 0.262, "confidence_median": 1.0, "width_median_bounded_m": 7.0, "window_m": [ 191.0, 216.0 ], "width_at_max25_m": 1.5, "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 ('Fjellbu'))", "license": "ODbL-1.0", "license_url": "https://howsteep.org/licensing" }, "area": { "place": "Narvik", "county": "Nordland", "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)" } }