{
 "ocl_version": "0.1.0",
 "name": "Chemin des Pirys",
 "slug": "chemin-des-pirys",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 32.728481554505606,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 780.0,
   "end_distance_m": 782.0,
   "start_elevation_m": 898.4584227931831,
   "end_elevation_m": 899.1129924242732,
   "min_gradient_pct": -6.365054543698534
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 32.55300310120598,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 779.0,
   "end_distance_m": 782.0,
   "start_elevation_m": 898.136402331237,
   "end_elevation_m": 899.1129924242732,
   "min_gradient_pct": -4.9372348230766265
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 32.03964464192495,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 777.0,
   "end_distance_m": 782.0,
   "start_elevation_m": 897.511010192177,
   "end_elevation_m": 899.1129924242732,
   "min_gradient_pct": -1.8509844684308518
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 30.89714236073405,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 777.0,
   "end_distance_m": 787.0,
   "start_elevation_m": 897.511010192177,
   "end_elevation_m": 900.6007244282504,
   "min_gradient_pct": -1.5598569051212507
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 30.052860170781628,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 775.0,
   "end_distance_m": 795.0,
   "start_elevation_m": 896.9229555303097,
   "end_elevation_m": 902.933527564466,
   "min_gradient_pct": -0.907790015760952
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 29.54786587482522,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 774.0,
   "end_distance_m": 799.0,
   "start_elevation_m": 896.6449793391412,
   "end_elevation_m": 904.0319458078475,
   "min_gradient_pct": -0.6477582306870318
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 26.398780487418435,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 759.0,
   "end_distance_m": 809.0,
   "start_elevation_m": 893.0343324094096,
   "end_elevation_m": 906.2337226531188,
   "min_gradient_pct": 0.09498216534007042
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 23.547786228876248,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 982.0,
   "end_distance_m": 1082.0,
   "start_elevation_m": 937.7564572993571,
   "end_elevation_m": 961.3042435282333,
   "min_gradient_pct": 0.2871236283244798
  }
 ],
 "shape": {
  "ascent_concentration": 0.463,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 535.0,
  "shape_class": "stepped"
 },
 "length_m": 1908.2137034912728,
 "start_elevation_m": 809.3088531523604,
 "end_elevation_m": 1016.5616815263568,
 "endpoint_gain_m": 207.2528283739964,
 "overall_gradient_pct": 10.861091081926835,
 "accumulated_ascent_m": 208.1521889937295,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 32.03964464192495,
   "start_distance_m": 777.0,
   "end_distance_m": 782.0,
   "midpoint_distance_m": 779.5,
   "start_elevation_m": 897.511010192177,
   "end_elevation_m": 899.1129924242732,
   "start_xy": [
    2586325.0389613323,
    1114571.3710674471
   ],
   "end_xy": [
    2586322.9613595665,
    1114566.8231495903
   ]
  },
  "max_10m": {
   "gradient_pct": 30.89714236073405,
   "start_distance_m": 777.0,
   "end_distance_m": 787.0,
   "midpoint_distance_m": 782.0,
   "start_elevation_m": 897.511010192177,
   "end_elevation_m": 900.6007244282504,
   "start_xy": [
    2586325.0389613323,
    1114571.3710674471
   ],
   "end_xy": [
    2586320.2938178033,
    1114562.607699648
   ]
  },
  "max_20m": {
   "gradient_pct": 30.052860170781628,
   "start_distance_m": 775.0,
   "end_distance_m": 795.0,
   "midpoint_distance_m": 785.0,
   "start_elevation_m": 896.9229555303097,
   "end_elevation_m": 902.933527564466,
   "start_xy": [
    2586325.871260019,
    1114573.1896600062
   ],
   "end_xy": [
    2586314.4910213356,
    1114557.16614954
   ]
  },
  "max_25m": {
   "gradient_pct": 29.54786587482522,
   "start_distance_m": 774.0,
   "end_distance_m": 799.0,
   "midpoint_distance_m": 786.5,
   "start_elevation_m": 896.6449793391412,
   "end_elevation_m": 904.0319458078475,
   "start_xy": [
    2586326.2867665924,
    1114574.0992489625
   ],
   "end_xy": [
    2586311.0695663574,
    1114555.0943818002
   ]
  },
  "max_50m": {
   "gradient_pct": 26.398780487418435,
   "start_distance_m": 759.0,
   "end_distance_m": 809.0,
   "midpoint_distance_m": 784.0,
   "start_elevation_m": 893.0343324094096,
   "end_elevation_m": 906.2337226531188,
   "start_xy": [
    2586332.248768785,
    1114587.8631166685
   ],
   "end_xy": [
    2586301.6167921475,
    1114552.048807013
   ]
  },
  "max_100m": {
   "gradient_pct": 23.547786228876248,
   "start_distance_m": 982.0,
   "end_distance_m": 1082.0,
   "midpoint_distance_m": 1032.0,
   "start_elevation_m": 937.7564572993571,
   "end_elevation_m": 961.3042435282333,
   "start_xy": [
    2586179.9145885883,
    1114444.8780793636
   ],
   "end_xy": [
    2586130.399194514,
    1114361.8875242604
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -1.8509844684308518,
   "start_distance_m": 1357.0,
   "end_distance_m": 1362.0,
   "midpoint_distance_m": 1359.5,
   "start_elevation_m": 993.3310249723036,
   "end_elevation_m": 993.238475748882,
   "start_xy": [
    2586145.1430933643,
    1114280.50181119
   ],
   "end_xy": [
    2586149.958207069,
    1114281.8458539117
   ]
  },
  "min_10m": {
   "gradient_pct": -1.5598569051212507,
   "start_distance_m": 1318.0,
   "end_distance_m": 1328.0,
   "midpoint_distance_m": 1323.0,
   "start_elevation_m": 993.180721940856,
   "end_elevation_m": 993.0247362503438,
   "start_xy": [
    2586107.2062824303,
    1114271.6868401978
   ],
   "end_xy": [
    2586117.0827823305,
    1114273.2059227577
   ]
  },
  "min_20m": {
   "gradient_pct": -0.907790015760952,
   "start_distance_m": 1316.0,
   "end_distance_m": 1336.0,
   "midpoint_distance_m": 1326.0,
   "start_elevation_m": 993.1937104626147,
   "end_elevation_m": 993.0121524594625,
   "start_xy": [
    2586105.2152398336,
    1114271.4977651369
   ],
   "end_xy": [
    2586124.871095434,
    1114275.0261777272
   ]
  },
  "min_25m": {
   "gradient_pct": -0.6477582306870318,
   "start_distance_m": 1309.0,
   "end_distance_m": 1334.0,
   "midpoint_distance_m": 1321.5,
   "start_elevation_m": 993.1519827505733,
   "end_elevation_m": 992.9900431929016,
   "start_xy": [
    2586098.235556336,
    1114270.9751080857
   ],
   "end_xy": [
    2586122.9323370904,
    1114274.535040185
   ]
  },
  "min_50m": {
   "gradient_pct": 0.09498216534007042,
   "start_distance_m": 1344.0,
   "end_distance_m": 1394.0,
   "midpoint_distance_m": 1369.0,
   "start_elevation_m": 993.2316554103195,
   "end_elevation_m": 993.2791464929895,
   "start_xy": [
    2586132.613839387,
    1114277.0378196803
   ],
   "end_xy": [
    2586181.182255355,
    1114288.8058166283
   ]
  },
  "min_100m": {
   "gradient_pct": 0.2871236283244798,
   "start_distance_m": 1320.0,
   "end_distance_m": 1420.0,
   "midpoint_distance_m": 1370.0,
   "start_elevation_m": 993.161573608721,
   "end_elevation_m": 993.4486972370455,
   "start_xy": [
    2586109.195114919,
    1114271.8947049442
   ],
   "end_xy": [
    2586206.5751227057,
    1114294.3404453525
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 32.728481554505606,
   "start_distance_m": 780.0,
   "end_distance_m": 782.0,
   "midpoint_distance_m": 781.0,
   "start_elevation_m": 898.4584227931831,
   "end_elevation_m": 899.1129924242732,
   "start_xy": [
    2586323.790919627,
    1114568.642993019
   ],
   "end_xy": [
    2586322.9613595665,
    1114566.8231495903
   ]
  },
  "max_3m": {
   "gradient_pct": 32.55300310120598,
   "start_distance_m": 779.0,
   "end_distance_m": 782.0,
   "midpoint_distance_m": 780.5,
   "start_elevation_m": 898.136402331237,
   "end_elevation_m": 899.1129924242732,
   "start_xy": [
    2586324.2066626456,
    1114569.552474888
   ],
   "end_xy": [
    2586322.9613595665,
    1114566.8231495903
   ]
  }
 },
 "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",
   "may_continue_beyond_end"
  ]
 },
 "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": "2026-09-10T19:30:29+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)"
 }
}