{
 "ocl_version": "0.1.0",
 "name": "Discovered lane (43.5933, -71.5222)",
 "slug": "discovered-lane-43-5933-71-5222",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 35.48279725103782,
   "diagnostic": true,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 315.0,
   "end_distance_m": 317.0,
   "start_elevation_m": 234.2568998444837,
   "end_elevation_m": 234.96655578950447,
   "min_gradient_pct": -18.093421862334935
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 34.22762224822501,
   "diagnostic": true,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 316.0,
   "end_distance_m": 319.0,
   "start_elevation_m": 234.57818024972346,
   "end_elevation_m": 235.6050089171702,
   "min_gradient_pct": -16.453160781861698
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 33.67178879762264,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 315.0,
   "end_distance_m": 320.0,
   "start_elevation_m": 234.2568998444837,
   "end_elevation_m": 235.94048928436484,
   "min_gradient_pct": -11.113651311196122
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 29.969244359348295,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 313.0,
   "end_distance_m": 323.0,
   "start_elevation_m": 233.79069017243165,
   "end_elevation_m": 236.78761460836648,
   "min_gradient_pct": -7.006675407172622
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 25.007309846674275,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 304.0,
   "end_distance_m": 324.0,
   "start_elevation_m": 231.9737581479713,
   "end_elevation_m": 236.97522011730615,
   "min_gradient_pct": -5.749719768199668
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 23.035819339749423,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 301.0,
   "end_distance_m": 326.0,
   "start_elevation_m": 231.49406200593035,
   "end_elevation_m": 237.2530168408677,
   "min_gradient_pct": -5.335949203818927
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 19.751102411775037,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 283.0,
   "end_distance_m": 333.0,
   "start_elevation_m": 228.44345340901103,
   "end_elevation_m": 238.31900461489855,
   "min_gradient_pct": -2.763451787166332
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 14.639794790986002,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 263.0,
   "end_distance_m": 363.0,
   "start_elevation_m": 225.93832729178106,
   "end_elevation_m": 240.57812208276707,
   "min_gradient_pct": 0.8266383233104193
  }
 ],
 "shape": {
  "ascent_concentration": 0.427,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 80.0,
  "shape_class": "sustained"
 },
 "length_m": 386.2638035113309,
 "start_elevation_m": 211.80941176265765,
 "end_elevation_m": 243.31435549064966,
 "endpoint_gain_m": 31.504943727992014,
 "overall_gradient_pct": 8.156328250691972,
 "accumulated_ascent_m": 34.126860243861586,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 33.67178879762264,
   "start_distance_m": 315.0,
   "end_distance_m": 320.0,
   "midpoint_distance_m": 317.5,
   "start_elevation_m": 234.2568998444837,
   "end_elevation_m": 235.94048928436484,
   "start_xy": [
    296306.3731094684,
    4829845.743544562
   ],
   "end_xy": [
    296301.4418176499,
    4829846.569593395
   ]
  },
  "max_10m": {
   "gradient_pct": 29.969244359348295,
   "start_distance_m": 313.0,
   "end_distance_m": 323.0,
   "midpoint_distance_m": 318.0,
   "start_elevation_m": 233.79069017243165,
   "end_elevation_m": 236.78761460836648,
   "start_xy": [
    296308.3457078377,
    4829845.413611772
   ],
   "end_xy": [
    296298.4830968127,
    4829847.065546679
   ]
  },
  "max_20m": {
   "gradient_pct": 25.007309846674275,
   "start_distance_m": 304.0,
   "end_distance_m": 324.0,
   "midpoint_distance_m": 314.0,
   "start_elevation_m": 231.9737581479713,
   "end_elevation_m": 236.97522011730615,
   "start_xy": [
    296317.2220060645,
    4829843.926561866
   ],
   "end_xy": [
    296297.49681124167,
    4829847.230594467
   ]
  },
  "max_25m": {
   "gradient_pct": 23.035819339749423,
   "start_distance_m": 301.0,
   "end_distance_m": 326.0,
   "midpoint_distance_m": 313.5,
   "start_elevation_m": 231.49406200593035,
   "end_elevation_m": 237.2530168408677,
   "start_xy": [
    296320.18074218265,
    4829843.430700607
   ],
   "end_xy": [
    296295.5242282336,
    4829847.560618776
   ]
  },
  "max_50m": {
   "gradient_pct": 19.751102411775037,
   "start_distance_m": 283.0,
   "end_distance_m": 333.0,
   "midpoint_distance_m": 308.0,
   "start_elevation_m": 228.44345340901103,
   "end_elevation_m": 238.31900461489855,
   "start_xy": [
    296337.9335109456,
    4829840.457628869
   ],
   "end_xy": [
    296288.58556810155,
    4829848.458587579
   ]
  },
  "max_100m": {
   "gradient_pct": 14.639794790986002,
   "start_distance_m": 263.0,
   "end_distance_m": 363.0,
   "midpoint_distance_m": 313.0,
   "start_elevation_m": 225.93832729178106,
   "end_elevation_m": 240.57812208276707,
   "start_xy": [
    296356.5189353145,
    4829834.020576173
   ],
   "end_xy": [
    296261.2467041992,
    4829859.839365262
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -11.113651311196122,
   "start_distance_m": 38.0,
   "end_distance_m": 43.0,
   "midpoint_distance_m": 40.5,
   "start_elevation_m": 214.9726786101822,
   "end_elevation_m": 214.41699604462238,
   "start_xy": [
    296492.50149467593,
    4829664.405121213
   ],
   "end_xy": [
    296488.45872245147,
    4829667.338328789
   ]
  },
  "min_10m": {
   "gradient_pct": -7.006675407172622,
   "start_distance_m": 171.0,
   "end_distance_m": 181.0,
   "midpoint_distance_m": 176.0,
   "start_elevation_m": 222.95186739814616,
   "end_elevation_m": 222.2511998574289,
   "start_xy": [
    296414.1343519644,
    4829768.417040577
   ],
   "end_xy": [
    296411.5501835461,
    4829778.064217775
   ]
  },
  "min_20m": {
   "gradient_pct": -5.749719768199668,
   "start_distance_m": 169.0,
   "end_distance_m": 189.0,
   "midpoint_distance_m": 179.0,
   "start_elevation_m": 223.05771590638136,
   "end_elevation_m": 221.90777195274143,
   "start_xy": [
    296414.5314038646,
    4829766.456849559
   ],
   "end_xy": [
    296409.1651107794,
    4829785.7004090855
   ]
  },
  "min_25m": {
   "gradient_pct": -5.335949203818927,
   "start_distance_m": 169.0,
   "end_distance_m": 194.0,
   "midpoint_distance_m": 181.5,
   "start_elevation_m": 223.05771590638136,
   "end_elevation_m": 221.72372860542663,
   "start_xy": [
    296414.5314038646,
    4829766.456849559
   ],
   "end_xy": [
    296407.2329023433,
    4829790.272244928
   ]
  },
  "min_50m": {
   "gradient_pct": -2.763451787166332,
   "start_distance_m": 158.0,
   "end_distance_m": 208.0,
   "midpoint_distance_m": 183.0,
   "start_elevation_m": 223.04234305852765,
   "end_elevation_m": 221.66061716494448,
   "start_xy": [
    296417.4459609398,
    4829755.925926878
   ],
   "end_xy": [
    296399.45765603887,
    4829801.913212924
   ]
  },
  "min_100m": {
   "gradient_pct": 0.8266383233104193,
   "start_distance_m": 119.0,
   "end_distance_m": 219.0,
   "midpoint_distance_m": 169.0,
   "start_elevation_m": 221.5602433822986,
   "end_elevation_m": 222.38688170560903,
   "start_xy": [
    296436.35680723283,
    4829721.858675326
   ],
   "end_xy": [
    296392.13828927727,
    4829810.124597897
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 35.48279725103782,
   "start_distance_m": 315.0,
   "end_distance_m": 317.0,
   "midpoint_distance_m": 316.0,
   "start_elevation_m": 234.2568998444837,
   "end_elevation_m": 234.96655578950447,
   "start_xy": [
    296306.3731094684,
    4829845.743544562
   ],
   "end_xy": [
    296304.4007015904,
    4829846.074612818
   ]
  },
  "max_3m": {
   "gradient_pct": 34.22762224822501,
   "start_distance_m": 316.0,
   "end_distance_m": 319.0,
   "midpoint_distance_m": 317.5,
   "start_elevation_m": 234.57818024972346,
   "end_elevation_m": 235.6050089171702,
   "start_xy": [
    296305.3868393231,
    4829845.908684252
   ],
   "end_xy": [
    296302.428103221,
    4829846.404545607
   ]
  }
 },
 "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": {
  "overhead_obstruction": {
   "obstruction_threshold_m": 2.0,
   "obstructed_fraction": 0.299,
   "obstruction_max_height_m": 17.26,
   "flagged_windows_m": [
    2,
    3,
    5,
    10,
    20,
    25,
    50,
    100
   ]
  },
  "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:26919",
  "elevation_resolution_m": 1.0,
  "elevation_tiles": [
   "data/cache/usa/nh/USGS_one_meter_x29y483_NH_CT_RiverNorthL6_2015.tif"
  ],
  "calculated_at": "2026-09-03T14:49:18+00:00",
  "road_source": "/mnt/HC_Volume_106727764/site-corpus-fresh/us/discovered-lane-43-5933-71-5222/discovered-lane-43-5933-71-5222.geojson",
  "run_id": "canopy-all-260903",
  "elevation_provider": "USGS 3DEP (The National Map)",
  "elevation_licence": "Public domain \u2014 USGS 3DEP 1 m DEM, courtesy of the U.S. Geological Survey",
  "elevation_dataset": "USGS 3DEP 1 m DEM, NH_CT_RiverNorthL6_2015 (collected 2015)",
  "elevation_tile_ids": [
   "x29y483"
  ],
  "climb_origin": "discovered",
  "canopy_source": {
   "kind": "ept_corridor_max_return",
   "ept_source": "https://usgs-lidar-public.s3-us-west-2.amazonaws.com/USGS_LPC_CT_River_Lot6_Winnipesaulee_2015_LAS_2017",
   "ept_crs": "EPSG:3857",
   "station_coverage": 1.0,
   "cell_ground_m": 1.0,
   "nodes_failed": 0
  },
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing.html"
 },
 "area": {
  "place": "Laconia",
  "county": "New Hampshire"
 }
}