{
 "ocl_version": "0.1.0",
 "name": "Delia Drive",
 "slug": "delia-drive",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 31.13381917449658,
   "diagnostic": true,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 1000.0,
   "end_distance_m": 1002.0,
   "start_elevation_m": 314.1494119077624,
   "end_elevation_m": 314.7720882912523,
   "min_gradient_pct": -5.297871368206586
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 30.36420259402348,
   "diagnostic": true,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 926.0,
   "end_distance_m": 929.0,
   "start_elevation_m": 304.55479413022755,
   "end_elevation_m": 305.46572020804825,
   "min_gradient_pct": -4.519637820674423
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 28.22632886174347,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 926.0,
   "end_distance_m": 931.0,
   "start_elevation_m": 304.55479413022755,
   "end_elevation_m": 305.9661105733147,
   "min_gradient_pct": -3.3559922731950564
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 24.904913409755522,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 1011.0,
   "end_distance_m": 1021.0,
   "start_elevation_m": 316.43608203246725,
   "end_elevation_m": 318.9265733734428,
   "min_gradient_pct": -2.9308137246837873
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 22.668536798148864,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 1000.0,
   "end_distance_m": 1020.0,
   "start_elevation_m": 314.1494119077624,
   "end_elevation_m": 318.68311926739216,
   "min_gradient_pct": -2.6140530777998094
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 22.355048124152745,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 996.0,
   "end_distance_m": 1021.0,
   "start_elevation_m": 313.3378113424046,
   "end_elevation_m": 318.9265733734428,
   "min_gradient_pct": -2.541177508698638
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 18.372787535182283,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 980.0,
   "end_distance_m": 1030.0,
   "start_elevation_m": 311.11075766683945,
   "end_elevation_m": 320.2971514344306,
   "min_gradient_pct": -1.9578973347523174
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 15.915882948330648,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 956.0,
   "end_distance_m": 1056.0,
   "start_elevation_m": 308.2418368636618,
   "end_elevation_m": 324.1577198119924,
   "min_gradient_pct": -1.0934151794747322
  }
 ],
 "shape": {
  "ascent_concentration": 0.472,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 119.0,
  "shape_class": "stepped"
 },
 "length_m": 1056.2761361326995,
 "start_elevation_m": 247.81253389366407,
 "end_elevation_m": 324.21017055438836,
 "endpoint_gain_m": 76.39763666072429,
 "overall_gradient_pct": 7.232733377886944,
 "accumulated_ascent_m": 79.33059971672472,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 28.22632886174347,
   "start_distance_m": 926.0,
   "end_distance_m": 931.0,
   "midpoint_distance_m": 928.5,
   "start_elevation_m": 304.55479413022755,
   "end_elevation_m": 305.9661105733147,
   "start_xy": [
    288265.1259112089,
    4846494.02378946
   ],
   "end_xy": [
    288260.2809175029,
    4846495.240956462
   ]
  },
  "max_10m": {
   "gradient_pct": 24.904913409755522,
   "start_distance_m": 1011.0,
   "end_distance_m": 1021.0,
   "midpoint_distance_m": 1016.0,
   "start_elevation_m": 316.43608203246725,
   "end_elevation_m": 318.9265733734428,
   "start_xy": [
    288180.3492086255,
    4846492.515317914
   ],
   "end_xy": [
    288170.34968019073,
    4846492.612323198
   ]
  },
  "max_20m": {
   "gradient_pct": 22.668536798148864,
   "start_distance_m": 1000.0,
   "end_distance_m": 1020.0,
   "midpoint_distance_m": 1010.0,
   "start_elevation_m": 314.1494119077624,
   "end_elevation_m": 318.68311926739216,
   "start_xy": [
    288191.348687164,
    4846492.408323128
   ],
   "end_xy": [
    288171.3496384363,
    4846492.603191254
   ]
  },
  "max_25m": {
   "gradient_pct": 22.355048124152745,
   "start_distance_m": 996.0,
   "end_distance_m": 1021.0,
   "midpoint_distance_m": 1008.5,
   "start_elevation_m": 313.3378113424046,
   "end_elevation_m": 318.9265733734428,
   "start_xy": [
    288195.3484965876,
    4846492.369315034
   ],
   "end_xy": [
    288170.34968019073,
    4846492.612323198
   ]
  },
  "max_50m": {
   "gradient_pct": 18.372787535182283,
   "start_distance_m": 980.0,
   "end_distance_m": 1030.0,
   "midpoint_distance_m": 1005.0,
   "start_elevation_m": 311.11075766683945,
   "end_elevation_m": 320.2971514344306,
   "start_xy": [
    288211.3341259253,
    4846492.966836592
   ],
   "end_xy": [
    288161.3501111588,
    4846492.700318889
   ]
  },
  "max_100m": {
   "gradient_pct": 15.915882948330648,
   "start_distance_m": 956.0,
   "end_distance_m": 1056.0,
   "midpoint_distance_m": 1006.0,
   "start_elevation_m": 308.2418368636618,
   "end_elevation_m": 324.1577198119924,
   "start_xy": [
    288235.3076505775,
    4846494.093820397
   ],
   "end_xy": [
    288135.4924554447,
    4846495.331580061
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -3.3559922731950564,
   "start_distance_m": 53.0,
   "end_distance_m": 58.0,
   "midpoint_distance_m": 55.5,
   "start_elevation_m": 247.71579781568488,
   "end_elevation_m": 247.54799820202513,
   "start_xy": [
    288813.4819416351,
    4846574.730355594
   ],
   "end_xy": [
    288812.67292286805,
    4846579.664469933
   ]
  },
  "min_10m": {
   "gradient_pct": -2.9308137246837873,
   "start_distance_m": 47.0,
   "end_distance_m": 57.0,
   "midpoint_distance_m": 52.0,
   "start_elevation_m": 247.86139497173576,
   "end_elevation_m": 247.56831359926738,
   "start_xy": [
    288814.4519531137,
    4846568.809285659
   ],
   "end_xy": [
    288812.8350489552,
    4846578.6776998835
   ]
  },
  "min_20m": {
   "gradient_pct": -2.6140530777998094,
   "start_distance_m": 37.0,
   "end_distance_m": 57.0,
   "midpoint_distance_m": 47.0,
   "start_elevation_m": 248.09112421482735,
   "end_elevation_m": 247.56831359926738,
   "start_xy": [
    288816.0690168277,
    4846558.940897476
   ],
   "end_xy": [
    288812.8350489552,
    4846578.6776998835
   ]
  },
  "min_25m": {
   "gradient_pct": -2.541177508698638,
   "start_distance_m": 37.0,
   "end_distance_m": 62.0,
   "midpoint_distance_m": 49.5,
   "start_elevation_m": 248.09112421482735,
   "end_elevation_m": 247.4558298376527,
   "start_xy": [
    288816.0690168277,
    4846558.940897476
   ],
   "end_xy": [
    288812.0260304843,
    4846583.611814272
   ]
  },
  "min_50m": {
   "gradient_pct": -1.9578973347523174,
   "start_distance_m": 26.0,
   "end_distance_m": 76.0,
   "midpoint_distance_m": 51.0,
   "start_elevation_m": 248.26278281633833,
   "end_elevation_m": 247.28383414896217,
   "start_xy": [
    288817.8480470992,
    4846548.085713044
   ],
   "end_xy": [
    288809.8989744976,
    4846597.449168146
   ]
  },
  "min_100m": {
   "gradient_pct": -1.0934151794747322,
   "start_distance_m": 17.0,
   "end_distance_m": 117.0,
   "midpoint_distance_m": 67.0,
   "start_elevation_m": 248.22238351872792,
   "end_elevation_m": 247.1289683392532,
   "start_xy": [
    288819.30395824986,
    4846539.204254366
   ],
   "end_xy": [
    288800.9761043425,
    4846637.227673602
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 31.13381917449658,
   "start_distance_m": 1000.0,
   "end_distance_m": 1002.0,
   "midpoint_distance_m": 1001.0,
   "start_elevation_m": 314.1494119077624,
   "end_elevation_m": 314.7720882912523,
   "start_xy": [
    288191.348687164,
    4846492.408323128
   ],
   "end_xy": [
    288189.34877765743,
    4846492.427322224
   ]
  },
  "max_3m": {
   "gradient_pct": 30.36420259402348,
   "start_distance_m": 926.0,
   "end_distance_m": 929.0,
   "midpoint_distance_m": 927.5,
   "start_elevation_m": 304.55479413022755,
   "end_elevation_m": 305.46572020804825,
   "start_xy": [
    288265.1259112089,
    4846494.02378946
   ],
   "end_xy": [
    288262.2214544106,
    4846494.7748745065
   ]
  }
 },
 "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": 0.264,
   "obstruction_max_height_m": 26.56,
   "flagged_windows_m": [
    2,
    3,
    5,
    10,
    20,
    25,
    50,
    100
   ]
  },
  "review": [],
  "extent": [
   "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_x28y485_NH_CT_RiverNorthL6_2015.tif"
  ],
  "calculated_at": "2026-09-03T14:41:52+00:00",
  "road_source": "/mnt/HC_Volume_106727764/site-corpus-fresh/us/delia-drive/delia-drive.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": [
   "x28y485"
  ],
  "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": 0.995,
   "cell_ground_m": 1.0,
   "nodes_failed": 0
  },
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing.html"
 },
 "area": {
  "place": "Holderness",
  "county": "New Hampshire"
 }
}