{
 "ocl_version": "0.1.0",
 "name": "Chemin des Eudrans",
 "slug": "chemin-des-eudrans",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 27.03133397007491,
   "diagnostic": true,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 262.0,
   "end_distance_m": 264.0,
   "start_elevation_m": 1018.133930433322,
   "end_elevation_m": 1018.6745571127235,
   "min_gradient_pct": -53.59839417644707,
   "suppressed_max_gradient_pct": 61.89609535203999,
   "suppressed_location_m": [
    332.0,
    334.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 22.56316379728105,
   "diagnostic": true,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 431.0,
   "end_distance_m": 434.0,
   "start_elevation_m": 1033.8153725829973,
   "end_elevation_m": 1034.4922674969157,
   "min_gradient_pct": -40.42840798153217,
   "suppressed_max_gradient_pct": 50.791810839064055,
   "suppressed_location_m": [
    331.0,
    334.0
   ]
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 21.78970818335074,
   "diagnostic": false,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 57.0,
   "end_distance_m": 62.0,
   "start_elevation_m": 1003.1804506579167,
   "end_elevation_m": 1004.2699360670842,
   "min_gradient_pct": -22.79443077324231,
   "suppressed_max_gradient_pct": 36.79515748916401,
   "suppressed_location_m": [
    329.0,
    334.0
   ]
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 21.461899112663332,
   "diagnostic": false,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 56.0,
   "end_distance_m": 66.0,
   "start_elevation_m": 1002.9676588966372,
   "end_elevation_m": 1005.1138488079035,
   "min_gradient_pct": -8.2232450472452,
   "suppressed_max_gradient_pct": 22.644552467279482,
   "suppressed_location_m": [
    324.0,
    334.0
   ]
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 20.80297869710705,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 46.0,
   "end_distance_m": 66.0,
   "start_elevation_m": 1000.9532530684821,
   "end_elevation_m": 1005.1138488079035,
   "min_gradient_pct": 0.05493584862620082
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 20.191266087550048,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 44.0,
   "end_distance_m": 69.0,
   "start_elevation_m": 1000.575419571923,
   "end_elevation_m": 1005.6232360938105,
   "min_gradient_pct": 1.8150530398188494
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 17.88108802015222,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 465.0,
   "end_distance_m": 515.0,
   "start_elevation_m": 1039.397958206616,
   "end_elevation_m": 1048.3385022166922,
   "min_gradient_pct": 4.58826584449298
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 17.424294883534458,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 431.0,
   "end_distance_m": 531.0,
   "start_elevation_m": 1033.8153725829973,
   "end_elevation_m": 1051.2396674665317,
   "min_gradient_pct": 5.156756132285864
  }
 ],
 "shape": {
  "ascent_concentration": 0.377,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 147.0,
  "shape_class": "sustained"
 },
 "length_m": 692.7511073725998,
 "start_elevation_m": 996.1646070312651,
 "end_elevation_m": 1065.0169016894488,
 "endpoint_gain_m": 68.85229465818372,
 "overall_gradient_pct": 9.938965658145266,
 "accumulated_ascent_m": 71.0996215175544,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 21.78970818335074,
   "start_distance_m": 57.0,
   "end_distance_m": 62.0,
   "midpoint_distance_m": 59.5,
   "start_elevation_m": 1003.1804506579167,
   "end_elevation_m": 1004.2699360670842,
   "start_xy": [
    2585697.225985414,
    1114057.7609487963
   ],
   "end_xy": [
    2585695.4534671996,
    1114053.0877834912
   ]
  },
  "max_10m": {
   "gradient_pct": 21.461899112663332,
   "start_distance_m": 56.0,
   "end_distance_m": 66.0,
   "midpoint_distance_m": 61.0,
   "start_elevation_m": 1002.9676588966372,
   "end_elevation_m": 1005.1138488079035,
   "start_xy": [
    2585697.7430731994,
    1114058.6168811664
   ],
   "end_xy": [
    2585695.1187090473,
    1114049.21325024
   ]
  },
  "max_20m": {
   "gradient_pct": 20.80297869710705,
   "start_distance_m": 46.0,
   "end_distance_m": 66.0,
   "midpoint_distance_m": 56.0,
   "start_elevation_m": 1000.9532530684821,
   "end_elevation_m": 1005.1138488079035,
   "start_xy": [
    2585702.913951056,
    1114067.1762048658
   ],
   "end_xy": [
    2585695.1187090473,
    1114049.21325024
   ]
  },
  "max_25m": {
   "gradient_pct": 20.191266087550048,
   "start_distance_m": 44.0,
   "end_distance_m": 69.0,
   "midpoint_distance_m": 56.5,
   "start_elevation_m": 1000.575419571923,
   "end_elevation_m": 1005.6232360938105,
   "start_xy": [
    2585703.948126627,
    1114068.8880696057
   ],
   "end_xy": [
    2585696.609532036,
    1114046.6608321816
   ]
  },
  "max_50m": {
   "gradient_pct": 17.88108802015222,
   "start_distance_m": 465.0,
   "end_distance_m": 515.0,
   "midpoint_distance_m": 490.0,
   "start_elevation_m": 1039.397958206616,
   "end_elevation_m": 1048.3385022166922,
   "start_xy": [
    2586047.338550126,
    1114135.743065484
   ],
   "end_xy": [
    2586089.9528998733,
    1114113.3720318174
   ]
  },
  "max_100m": {
   "gradient_pct": 17.424294883534458,
   "start_distance_m": 431.0,
   "end_distance_m": 531.0,
   "midpoint_distance_m": 481.0,
   "start_elevation_m": 1033.8153725829973,
   "end_elevation_m": 1051.2396674665317,
   "start_xy": [
    2586033.088375912,
    1114164.1609503634
   ],
   "end_xy": [
    2586105.1976472917,
    1114108.5142878818
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -22.79443077324231,
   "start_distance_m": 334.0,
   "end_distance_m": 339.0,
   "midpoint_distance_m": 336.5,
   "start_elevation_m": 1025.7937488435077,
   "end_elevation_m": 1024.6540273048456,
   "start_xy": [
    2585948.354922885,
    1114122.8477333873
   ],
   "end_xy": [
    2585952.465099587,
    1114125.6842544295
   ]
  },
  "min_10m": {
   "gradient_pct": -8.2232450472452,
   "start_distance_m": 334.0,
   "end_distance_m": 344.0,
   "midpoint_distance_m": 339.0,
   "start_elevation_m": 1025.7937488435077,
   "end_elevation_m": 1024.9714243387832,
   "start_xy": [
    2585948.354922885,
    1114122.8477333873
   ],
   "end_xy": [
    2585956.5620788424,
    1114128.5503948627
   ]
  },
  "min_20m": {
   "gradient_pct": 0.05493584862620082,
   "start_distance_m": 334.0,
   "end_distance_m": 354.0,
   "midpoint_distance_m": 344.0,
   "start_elevation_m": 1025.7937488435077,
   "end_elevation_m": 1025.804736013233,
   "start_xy": [
    2585948.354922885,
    1114122.8477333873
   ],
   "end_xy": [
    2585964.4214508794,
    1114134.7229572868
   ]
  },
  "min_25m": {
   "gradient_pct": 1.8150530398188494,
   "start_distance_m": 334.0,
   "end_distance_m": 359.0,
   "midpoint_distance_m": 346.5,
   "start_elevation_m": 1025.7937488435077,
   "end_elevation_m": 1026.2475121034624,
   "start_xy": [
    2585948.354922885,
    1114122.8477333873
   ],
   "end_xy": [
    2585968.273053635,
    1114137.9112340617
   ]
  },
  "min_50m": {
   "gradient_pct": 4.58826584449298,
   "start_distance_m": 642.0,
   "end_distance_m": 692.0,
   "midpoint_distance_m": 667.0,
   "start_elevation_m": 1062.6591883611923,
   "end_elevation_m": 1064.9533212834388,
   "start_xy": [
    2586194.6257896707,
    1114073.5757538415
   ],
   "end_xy": [
    2586155.1515450384,
    1114045.1584743378
   ]
  },
  "min_100m": {
   "gradient_pct": 5.156756132285864,
   "start_distance_m": 116.0,
   "end_distance_m": 216.0,
   "midpoint_distance_m": 166.0,
   "start_elevation_m": 1009.1918576602759,
   "end_elevation_m": 1014.3486137925618,
   "start_xy": [
    2585742.5913546407,
    1114052.3829575311
   ],
   "end_xy": [
    2585835.298282418,
    1114089.667611025
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 27.03133397007491,
   "start_distance_m": 262.0,
   "end_distance_m": 264.0,
   "midpoint_distance_m": 263.0,
   "start_elevation_m": 1018.133930433322,
   "end_elevation_m": 1018.6745571127235,
   "start_xy": [
    2585878.6237085485,
    1114105.0321622554
   ],
   "end_xy": [
    2585880.5423365603,
    1114105.5968449549
   ]
  },
  "max_3m": {
   "gradient_pct": 22.56316379728105,
   "start_distance_m": 431.0,
   "end_distance_m": 434.0,
   "midpoint_distance_m": 432.5,
   "start_elevation_m": 1033.8153725829973,
   "end_elevation_m": 1034.4922674969157,
   "start_xy": [
    2586033.088375912,
    1114164.1609503634
   ],
   "end_xy": [
    2586035.920217788,
    1114163.2214460282
   ]
  }
 },
 "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": 0.01,
   "windows_resited": [
    2.0,
    3.0,
    5.0,
    10.0
   ],
   "windows_unresolved": []
  },
  "excluded_ranges_m": [
   [
    331.0,
    337.0
   ]
  ],
  "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_2585-1114_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2024_2586-1114_0.5_2056_5728.tif"
  ],
  "calculated_at": "2026-09-10T20:10:00+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-run6-260910",
  "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": [
   "2585-1114",
   "2586-1114"
  ],
  "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)"
 }
}