{
 "ocl_version": "0.1.0",
 "name": "Chemin du Qu\u00e2tro",
 "slug": "chemin-du-quatro-2",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 29.955164303225956,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 288.0,
   "end_distance_m": 290.0,
   "start_elevation_m": 1420.667945807117,
   "end_elevation_m": 1421.2670490931814,
   "min_gradient_pct": -8.946646961169336
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 29.749861679495854,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 287.0,
   "end_distance_m": 290.0,
   "start_elevation_m": 1420.3745532427965,
   "end_elevation_m": 1421.2670490931814,
   "min_gradient_pct": -7.835510106876124
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 28.27120045832089,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 287.0,
   "end_distance_m": 292.0,
   "start_elevation_m": 1420.3745532427965,
   "end_elevation_m": 1421.7881132657126,
   "min_gradient_pct": -4.565637422556392
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 27.180077467523915,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 287.0,
   "end_distance_m": 297.0,
   "start_elevation_m": 1420.3745532427965,
   "end_elevation_m": 1423.092560989549,
   "min_gradient_pct": -3.8860458749672944
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 22.89539137715451,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 284.0,
   "end_distance_m": 304.0,
   "start_elevation_m": 1419.8567883391897,
   "end_elevation_m": 1424.4358666146206,
   "min_gradient_pct": -2.55808572093315
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 22.064659958581615,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 286.0,
   "end_distance_m": 311.0,
   "start_elevation_m": 1420.194663590999,
   "end_elevation_m": 1425.7108285806444,
   "min_gradient_pct": -2.2126928842426423
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 20.18608114079325,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 284.0,
   "end_distance_m": 334.0,
   "start_elevation_m": 1419.8567883391897,
   "end_elevation_m": 1429.9498289095864,
   "min_gradient_pct": -0.7206408254951384
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 19.305060846618062,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 284.0,
   "end_distance_m": 384.0,
   "start_elevation_m": 1419.8567883391897,
   "end_elevation_m": 1439.1618491858078,
   "min_gradient_pct": 2.1168110088440244
  }
 ],
 "shape": {
  "ascent_concentration": 0.397,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 150.0,
  "shape_class": "sustained"
 },
 "length_m": 903.8218860775595,
 "start_elevation_m": 1398.0011266406261,
 "end_elevation_m": 1487.632178151861,
 "endpoint_gain_m": 89.63105151123477,
 "overall_gradient_pct": 9.916893238801618,
 "accumulated_ascent_m": 91.38140370698306,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 28.27120045832089,
   "start_distance_m": 287.0,
   "end_distance_m": 292.0,
   "midpoint_distance_m": 289.5,
   "start_elevation_m": 1420.3745532427965,
   "end_elevation_m": 1421.7881132657126,
   "start_xy": [
    2590129.798081439,
    1113233.2428417266
   ],
   "end_xy": [
    2590125.5946937623,
    1113235.9505219217
   ]
  },
  "max_10m": {
   "gradient_pct": 27.180077467523915,
   "start_distance_m": 287.0,
   "end_distance_m": 297.0,
   "midpoint_distance_m": 292.0,
   "start_elevation_m": 1420.3745532427965,
   "end_elevation_m": 1423.092560989549,
   "start_xy": [
    2590129.798081439,
    1113233.2428417266
   ],
   "end_xy": [
    2590121.3913060855,
    1113238.6582021168
   ]
  },
  "max_20m": {
   "gradient_pct": 22.89539137715451,
   "start_distance_m": 284.0,
   "end_distance_m": 304.0,
   "midpoint_distance_m": 294.0,
   "start_elevation_m": 1419.8567883391897,
   "end_elevation_m": 1424.4358666146206,
   "start_xy": [
    2590132.320114045,
    1113231.6182336095
   ],
   "end_xy": [
    2590115.5065633385,
    1113242.4489543901
   ]
  },
  "max_25m": {
   "gradient_pct": 22.064659958581615,
   "start_distance_m": 286.0,
   "end_distance_m": 311.0,
   "midpoint_distance_m": 298.5,
   "start_elevation_m": 1420.194663590999,
   "end_elevation_m": 1425.7108285806444,
   "start_xy": [
    2590130.6387589746,
    1113232.7013056877
   ],
   "end_xy": [
    2590109.435189846,
    1113245.9120116807
   ]
  },
  "max_50m": {
   "gradient_pct": 20.18608114079325,
   "start_distance_m": 284.0,
   "end_distance_m": 334.0,
   "midpoint_distance_m": 309.0,
   "start_elevation_m": 1419.8567883391897,
   "end_elevation_m": 1429.9498289095864,
   "start_xy": [
    2590132.320114045,
    1113231.6182336095
   ],
   "end_xy": [
    2590088.8583297445,
    1113256.1878487933
   ]
  },
  "max_100m": {
   "gradient_pct": 19.305060846618062,
   "start_distance_m": 284.0,
   "end_distance_m": 384.0,
   "midpoint_distance_m": 334.0,
   "start_elevation_m": 1419.8567883391897,
   "end_elevation_m": 1439.1618491858078,
   "start_xy": [
    2590132.320114045,
    1113231.6182336095
   ],
   "end_xy": [
    2590064.7936041243,
    1113289.4623242174
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -4.565637422556392,
   "start_distance_m": 790.0,
   "end_distance_m": 795.0,
   "midpoint_distance_m": 792.5,
   "start_elevation_m": 1485.8816401773208,
   "end_elevation_m": 1485.653358306193,
   "start_xy": [
    2589906.571911715,
    1113532.6529717303
   ],
   "end_xy": [
    2589906.3177756364,
    1113537.6352315503
   ]
  },
  "min_10m": {
   "gradient_pct": -3.8860458749672944,
   "start_distance_m": 789.0,
   "end_distance_m": 799.0,
   "midpoint_distance_m": 794.0,
   "start_elevation_m": 1485.9067981598876,
   "end_elevation_m": 1485.5181935723908,
   "start_xy": [
    2589906.681527209,
    1113531.6593272048
   ],
   "end_xy": [
    2589906.592498696,
    1113541.6254233448
   ]
  },
  "min_20m": {
   "gradient_pct": -2.55808572093315,
   "start_distance_m": 883.0,
   "end_distance_m": 903.0,
   "midpoint_distance_m": 893.0,
   "start_elevation_m": 1488.1541435560825,
   "end_elevation_m": 1487.642526411896,
   "start_xy": [
    2589929.7551415763,
    1113620.2016713542
   ],
   "end_xy": [
    2589943.6574125453,
    1113634.5450095905
   ]
  },
  "min_25m": {
   "gradient_pct": -2.2126928842426423,
   "start_distance_m": 875.0,
   "end_distance_m": 900.0,
   "midpoint_distance_m": 887.5,
   "start_elevation_m": 1488.2441666990826,
   "end_elevation_m": 1487.690993478022,
   "start_xy": [
    2589924.5956899524,
    1113614.0886264548
   ],
   "end_xy": [
    2589941.4615335623,
    1113632.500965684
   ]
  },
  "min_50m": {
   "gradient_pct": -0.7206408254951384,
   "start_distance_m": 787.0,
   "end_distance_m": 837.0,
   "midpoint_distance_m": 812.0,
   "start_elevation_m": 1485.9120067284302,
   "end_elevation_m": 1485.5516863156827,
   "start_xy": [
    2589906.9699775428,
    1113529.680237413
   ],
   "end_xy": [
    2589910.555922513,
    1113579.411276361
   ]
  },
  "min_100m": {
   "gradient_pct": 2.1168110088440244,
   "start_distance_m": 803.0,
   "end_distance_m": 903.0,
   "midpoint_distance_m": 853.0,
   "start_elevation_m": 1485.525715403052,
   "end_elevation_m": 1487.642526411896,
   "start_xy": [
    2589906.9647534303,
    1113545.608063978
   ],
   "end_xy": [
    2589943.6574125453,
    1113634.5450095905
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 29.955164303225956,
   "start_distance_m": 288.0,
   "end_distance_m": 290.0,
   "midpoint_distance_m": 289.0,
   "start_elevation_m": 1420.667945807117,
   "end_elevation_m": 1421.2670490931814,
   "start_xy": [
    2590128.957403904,
    1113233.7843777656
   ],
   "end_xy": [
    2590127.276048833,
    1113234.8674498438
   ]
  },
  "max_3m": {
   "gradient_pct": 29.749861679495854,
   "start_distance_m": 287.0,
   "end_distance_m": 290.0,
   "midpoint_distance_m": 288.5,
   "start_elevation_m": 1420.3745532427965,
   "end_elevation_m": 1421.2670490931814,
   "start_xy": [
    2590129.798081439,
    1113233.2428417266
   ],
   "end_xy": [
    2590127.276048833,
    1113234.8674498438
   ]
  }
 },
 "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": {
  "review": [],
  "extent": [
   "may_start_earlier"
  ]
 },
 "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:2056",
  "elevation_resolution_m": 0.5,
  "elevation_tiles": [
   "data/cache/ch/swissalti3d_2024_2589-1113_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2024_2590-1113_0.5_2056_5728.tif"
  ],
  "calculated_at": "2026-09-11T02:24:56+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/switzerland-2026-09-10-batch.osm.pbf",
  "osm_snapshot": "",
  "run_id": "ch-run7-260911",
  "elevation_provider": "swisstopo swissALTI3D",
  "elevation_licence": "swisstopo open government data (OGD): free use, attribution '\u00a9 swisstopo' \u2014 https://www.swisstopo.admin.ch/en/terms-and-conditions",
  "elevation_dataset": "swissALTI3D 0.5 m DTM (Federal Office of Topography swisstopo)",
  "elevation_tile_ids": [
   "2589-1113",
   "2590-1113"
  ],
  "climb_origin": "discovered",
  "canopy_check": "unavailable \u2014 no surface model (DSM or point cloud) registered for this coverage",
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing"
 },
 "area": {
  "place": "Nendaz",
  "county": "Valais/Wallis",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}