{
 "ocl_version": "0.1.0",
 "name": "Entre Deux Torrents",
 "slug": "entre-deux-torrents-2",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 50.0544481173165,
   "diagnostic": true,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 1432.0,
   "end_distance_m": 1434.0,
   "start_elevation_m": 815.5211263690277,
   "end_elevation_m": 816.522215331374,
   "min_gradient_pct": -262.4816627499513,
   "suppressed_max_gradient_pct": 272.7313621698613,
   "suppressed_location_m": [
    2679.0,
    2681.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 46.69631082305159,
   "diagnostic": true,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 1431.0,
   "end_distance_m": 1434.0,
   "start_elevation_m": 815.1213260066825,
   "end_elevation_m": 816.522215331374,
   "min_gradient_pct": -175.30062839630318,
   "suppressed_max_gradient_pct": 227.2601365909395,
   "suppressed_location_m": [
    2678.0,
    2681.0
   ]
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 43.12745520547196,
   "diagnostic": false,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 1429.0,
   "end_distance_m": 1434.0,
   "start_elevation_m": 814.3658425711004,
   "end_elevation_m": 816.522215331374,
   "min_gradient_pct": -105.25394112119557,
   "suppressed_max_gradient_pct": 141.70560962429136,
   "suppressed_location_m": [
    2678.0,
    2683.0
   ]
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 38.50064459884834,
   "diagnostic": false,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 1133.0,
   "end_distance_m": 1143.0,
   "start_elevation_m": 750.3038470549252,
   "end_elevation_m": 754.15391151481,
   "min_gradient_pct": -39.72163537131337,
   "suppressed_max_gradient_pct": 78.15385630253104,
   "suppressed_location_m": [
    2678.0,
    2688.0
   ]
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 35.92667538501246,
   "diagnostic": false,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 1124.0,
   "end_distance_m": 1144.0,
   "start_elevation_m": 747.2949199527111,
   "end_elevation_m": 754.4802550297136,
   "min_gradient_pct": -4.970421633196338,
   "suppressed_max_gradient_pct": 49.18918688627855,
   "suppressed_location_m": [
    2678.0,
    2698.0
   ]
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 34.809373730974585,
   "diagnostic": false,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 1123.0,
   "end_distance_m": 1148.0,
   "start_elevation_m": 747.0279026481167,
   "end_elevation_m": 755.7302460808603,
   "min_gradient_pct": -1.6504706328373686,
   "suppressed_max_gradient_pct": 42.67865611146044,
   "suppressed_location_m": [
    2678.0,
    2703.0
   ]
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 31.318377372550003,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 2758.0,
   "end_distance_m": 2808.0,
   "start_elevation_m": 1061.537923496603,
   "end_elevation_m": 1077.197112182878,
   "min_gradient_pct": -0.036998075675455766
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 27.9057050465226,
   "diagnostic": false,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 2136.0,
   "end_distance_m": 2236.0,
   "start_elevation_m": 921.0279124121635,
   "end_elevation_m": 948.9336174586861,
   "min_gradient_pct": 3.5232229275578675,
   "suppressed_max_gradient_pct": 28.54582962711197,
   "suppressed_location_m": [
    2678.0,
    2778.0
   ]
  }
 ],
 "shape": {
  "ascent_concentration": 0.363,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 599.0,
  "shape_class": "sustained"
 },
 "length_m": 3411.260956106342,
 "start_elevation_m": 613.3278020751857,
 "end_elevation_m": 1174.134587693335,
 "endpoint_gain_m": 560.8067856181494,
 "overall_gradient_pct": 16.439867627666388,
 "accumulated_ascent_m": 572.4203238035423,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 43.12745520547196,
   "start_distance_m": 1429.0,
   "end_distance_m": 1434.0,
   "midpoint_distance_m": 1431.5,
   "start_elevation_m": 814.3658425711004,
   "end_elevation_m": 816.522215331374,
   "start_xy": [
    2605457.1407814203,
    1127382.178993641
   ],
   "end_xy": [
    2605456.2009206493,
    1127387.0898654303
   ]
  },
  "max_10m": {
   "gradient_pct": 38.50064459884834,
   "start_distance_m": 1133.0,
   "end_distance_m": 1143.0,
   "midpoint_distance_m": 1138.0,
   "start_elevation_m": 750.3038470549252,
   "end_elevation_m": 754.15391151481,
   "start_xy": [
    2605613.6459268606,
    1127151.1567745334
   ],
   "end_xy": [
    2605605.423887781,
    1127156.8097237078
   ]
  },
  "max_20m": {
   "gradient_pct": 35.92667538501246,
   "start_distance_m": 1124.0,
   "end_distance_m": 1144.0,
   "midpoint_distance_m": 1134.0,
   "start_elevation_m": 747.2949199527111,
   "end_elevation_m": 754.4802550297136,
   "start_xy": [
    2605621.2661130307,
    1127146.36795811
   ],
   "end_xy": [
    2605604.6653019693,
    1127157.4612968552
   ]
  },
  "max_25m": {
   "gradient_pct": 34.809373730974585,
   "start_distance_m": 1123.0,
   "end_distance_m": 1148.0,
   "midpoint_distance_m": 1135.5,
   "start_elevation_m": 747.0279026481167,
   "end_elevation_m": 755.7302460808603,
   "start_xy": [
    2605622.112800383,
    1127145.8358673963
   ],
   "end_xy": [
    2605601.9876682884,
    1127160.3889250366
   ]
  },
  "max_50m": {
   "gradient_pct": 31.318377372550003,
   "start_distance_m": 2758.0,
   "end_distance_m": 2808.0,
   "midpoint_distance_m": 2783.0,
   "start_elevation_m": 1061.537923496603,
   "end_elevation_m": 1077.197112182878,
   "start_xy": [
    2605455.1599558187,
    1128283.966776473
   ],
   "end_xy": [
    2605449.0065733744,
    1128325.348252161
   ]
  },
  "max_100m": {
   "gradient_pct": 27.9057050465226,
   "start_distance_m": 2136.0,
   "end_distance_m": 2236.0,
   "midpoint_distance_m": 2186.0,
   "start_elevation_m": 921.0279124121635,
   "end_elevation_m": 948.9336174586861,
   "start_xy": [
    2605399.019488239,
    1127887.6777917393
   ],
   "end_xy": [
    2605461.379203416,
    1127871.112591312
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -105.25394112119557,
   "start_distance_m": 2673.0,
   "end_distance_m": 2678.0,
   "midpoint_distance_m": 2675.5,
   "start_elevation_m": 1043.9653823327026,
   "end_elevation_m": 1038.7026852766428,
   "start_xy": [
    2605429.2067811266,
    1128205.2882325707
   ],
   "end_xy": [
    2605432.667461191,
    1128208.8245558904
   ]
  },
  "min_10m": {
   "gradient_pct": -39.72163537131337,
   "start_distance_m": 2668.0,
   "end_distance_m": 2678.0,
   "midpoint_distance_m": 2673.0,
   "start_elevation_m": 1042.6748488137741,
   "end_elevation_m": 1038.7026852766428,
   "start_xy": [
    2605424.6839363268,
    1128203.1986996161
   ],
   "end_xy": [
    2605432.667461191,
    1128208.8245558904
   ]
  },
  "min_20m": {
   "gradient_pct": -4.970421633196338,
   "start_distance_m": 2658.0,
   "end_distance_m": 2678.0,
   "midpoint_distance_m": 2668.0,
   "start_elevation_m": 1039.696769603282,
   "end_elevation_m": 1038.7026852766428,
   "start_xy": [
    2605415.458603301,
    1128199.3462001053
   ],
   "end_xy": [
    2605432.667461191,
    1128208.8245558904
   ]
  },
  "min_25m": {
   "gradient_pct": -1.6504706328373686,
   "start_distance_m": 842.0,
   "end_distance_m": 867.0,
   "midpoint_distance_m": 854.5,
   "start_elevation_m": 706.9717164618698,
   "end_elevation_m": 706.5590988036605,
   "start_xy": [
    2605728.1556514394,
    1127013.662141313
   ],
   "end_xy": [
    2605714.52845353,
    1126992.8942119237
   ]
  },
  "min_50m": {
   "gradient_pct": -0.036998075675455766,
   "start_distance_m": 842.0,
   "end_distance_m": 892.0,
   "midpoint_distance_m": 867.0,
   "start_elevation_m": 706.9717164618698,
   "end_elevation_m": 706.9532174240321,
   "start_xy": [
    2605728.1556514394,
    1127013.662141313
   ],
   "end_xy": [
    2605698.5981437303,
    1126973.6270058553
   ]
  },
  "min_100m": {
   "gradient_pct": 3.5232229275578675,
   "start_distance_m": 819.0,
   "end_distance_m": 919.0,
   "midpoint_distance_m": 869.0,
   "start_elevation_m": 705.340245278812,
   "end_elevation_m": 708.8634682063698,
   "start_xy": [
    2605742.7163891154,
    1127029.8706796998
   ],
   "end_xy": [
    2605676.2144356966,
    1126973.3353639604
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 50.0544481173165,
   "start_distance_m": 1432.0,
   "end_distance_m": 1434.0,
   "midpoint_distance_m": 1433.0,
   "start_elevation_m": 815.5211263690277,
   "end_elevation_m": 816.522215331374,
   "start_xy": [
    2605456.576864958,
    1127385.1255167145
   ],
   "end_xy": [
    2605456.2009206493,
    1127387.0898654303
   ]
  },
  "max_3m": {
   "gradient_pct": 46.69631082305159,
   "start_distance_m": 1431.0,
   "end_distance_m": 1434.0,
   "midpoint_distance_m": 1432.5,
   "start_elevation_m": 815.1213260066825,
   "end_elevation_m": 816.522215331374,
   "start_xy": [
    2605456.764837112,
    1127384.1433423567
   ],
   "end_xy": [
    2605456.2009206493,
    1127387.0898654303
   ]
  }
 },
 "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": 0.014,
   "windows_resited": [
    2.0,
    3.0,
    5.0,
    10.0,
    20.0,
    25.0,
    100.0
   ],
   "windows_unresolved": []
  },
  "excluded_ranges_m": [
   [
    1539.0,
    1546.0
   ],
   [
    2653.0,
    2685.0
   ],
   [
    3329.0,
    3334.0
   ]
  ],
  "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_2605-1126_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2024_2605-1127_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2024_2605-1128_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2024_2606-1126_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2024_2606-1127_0.5_2056_5728.tif"
  ],
  "calculated_at": "2026-09-11T01:38:45+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": [
   "2605-1126",
   "2605-1127",
   "2605-1128",
   "2606-1126",
   "2606-1127"
  ],
  "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": "Crans-Montana",
  "county": "Valais/Wallis",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}