{
 "ocl_version": "0.1.0",
 "name": "Coffee Drive",
 "slug": "coffee-drive-2",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 46.19587341678937,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 33.0,
   "end_distance_m": 35.0,
   "start_elevation_m": 330.02081275289885,
   "end_elevation_m": 330.94473022123464,
   "min_gradient_pct": -4.492719028797865
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 44.12355089851682,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 33.0,
   "end_distance_m": 36.0,
   "start_elevation_m": 330.02081275289885,
   "end_elevation_m": 331.34451927985435,
   "min_gradient_pct": -3.8746394510932682
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 39.1330156108495,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 33.0,
   "end_distance_m": 38.0,
   "start_elevation_m": 330.02081275289885,
   "end_elevation_m": 331.9774635334413,
   "min_gradient_pct": -3.3171760218613144
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 35.76725000982435,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 33.0,
   "end_distance_m": 43.0,
   "start_elevation_m": 330.02081275289885,
   "end_elevation_m": 333.5975377538813,
   "min_gradient_pct": -3.100876730792379
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 33.02507784119854,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 33.0,
   "end_distance_m": 53.0,
   "start_elevation_m": 330.02081275289885,
   "end_elevation_m": 336.62582832113856,
   "min_gradient_pct": -2.927182704181348
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 31.349003621139218,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 33.0,
   "end_distance_m": 58.0,
   "start_elevation_m": 330.02081275289885,
   "end_elevation_m": 337.85806365818365,
   "min_gradient_pct": -2.8227003774668447
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 25.76557285877641,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 14.0,
   "end_distance_m": 64.0,
   "start_elevation_m": 325.7549497292361,
   "end_elevation_m": 338.6377361586243,
   "min_gradient_pct": -1.6774422512914953
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 21.788393875220095,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 210.0,
   "end_distance_m": 310.0,
   "start_elevation_m": 368.0889947631071,
   "end_elevation_m": 389.8773886383272,
   "min_gradient_pct": 1.8950035283022544
  }
 ],
 "shape": {
  "ascent_concentration": 0.453,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 340.0,
  "shape_class": "stepped"
 },
 "length_m": 1196.2899361741647,
 "start_elevation_m": 325.2869136955495,
 "end_elevation_m": 466.9067234605718,
 "endpoint_gain_m": 141.6198097650223,
 "overall_gradient_pct": 11.838251370561077,
 "accumulated_ascent_m": 143.1194102006712,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 39.1330156108495,
   "start_distance_m": 33.0,
   "end_distance_m": 38.0,
   "midpoint_distance_m": 35.5,
   "start_elevation_m": 330.02081275289885,
   "end_elevation_m": 331.9774635334413,
   "start_xy": [
    195433.71248738348,
    2156199.7386670895
   ],
   "end_xy": [
    195431.04131767552,
    2156203.965350469
   ]
  },
  "max_10m": {
   "gradient_pct": 35.76725000982435,
   "start_distance_m": 33.0,
   "end_distance_m": 43.0,
   "midpoint_distance_m": 38.0,
   "start_elevation_m": 330.02081275289885,
   "end_elevation_m": 333.5975377538813,
   "start_xy": [
    195433.71248738348,
    2156199.7386670895
   ],
   "end_xy": [
    195428.37014796757,
    2156208.1920338487
   ]
  },
  "max_20m": {
   "gradient_pct": 33.02507784119854,
   "start_distance_m": 33.0,
   "end_distance_m": 53.0,
   "midpoint_distance_m": 43.0,
   "start_elevation_m": 330.02081275289885,
   "end_elevation_m": 336.62582832113856,
   "start_xy": [
    195433.71248738348,
    2156199.7386670895
   ],
   "end_xy": [
    195423.02780855162,
    2156216.645400608
   ]
  },
  "max_25m": {
   "gradient_pct": 31.349003621139218,
   "start_distance_m": 33.0,
   "end_distance_m": 58.0,
   "midpoint_distance_m": 45.5,
   "start_elevation_m": 330.02081275289885,
   "end_elevation_m": 337.85806365818365,
   "start_xy": [
    195433.71248738348,
    2156199.7386670895
   ],
   "end_xy": [
    195420.35663884366,
    2156220.8720839876
   ]
  },
  "max_50m": {
   "gradient_pct": 25.76557285877641,
   "start_distance_m": 14.0,
   "end_distance_m": 64.0,
   "midpoint_distance_m": 39.0,
   "start_elevation_m": 325.7549497292361,
   "end_elevation_m": 338.6377361586243,
   "start_xy": [
    195439.70396899738,
    2156183.078405236
   ],
   "end_xy": [
    195417.1512351941,
    2156225.944104043
   ]
  },
  "max_100m": {
   "gradient_pct": 21.788393875220095,
   "start_distance_m": 210.0,
   "end_distance_m": 310.0,
   "midpoint_distance_m": 260.0,
   "start_elevation_m": 368.0889947631071,
   "end_elevation_m": 389.8773886383272,
   "start_xy": [
    195529.45820621148,
    2156305.964054137
   ],
   "end_xy": [
    195566.8152906779,
    2156393.2734106476
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -3.3171760218613144,
   "start_distance_m": 615.0,
   "end_distance_m": 620.0,
   "midpoint_distance_m": 617.5,
   "start_elevation_m": 421.1076819944858,
   "end_elevation_m": 420.94182319339274,
   "start_xy": [
    195363.9799394268,
    2156616.308424606
   ],
   "end_xy": [
    195360.73706468995,
    2156620.1141785975
   ]
  },
  "min_10m": {
   "gradient_pct": -3.100876730792379,
   "start_distance_m": 601.0,
   "end_distance_m": 611.0,
   "midpoint_distance_m": 606.0,
   "start_elevation_m": 421.49891168846614,
   "end_elevation_m": 421.1888240153869,
   "start_xy": [
    195373.3134399146,
    2156605.890737425
   ],
   "end_xy": [
    195366.57423921625,
    2156613.2638214133
   ]
  },
  "min_20m": {
   "gradient_pct": -2.927182704181348,
   "start_distance_m": 601.0,
   "end_distance_m": 621.0,
   "midpoint_distance_m": 611.0,
   "start_elevation_m": 421.49891168846614,
   "end_elevation_m": 420.91347514762987,
   "start_xy": [
    195373.3134399146,
    2156605.890737425
   ],
   "end_xy": [
    195360.08848974257,
    2156620.8753293953
   ]
  },
  "min_25m": {
   "gradient_pct": -2.8227003774668447,
   "start_distance_m": 601.0,
   "end_distance_m": 626.0,
   "midpoint_distance_m": 613.5,
   "start_elevation_m": 421.49891168846614,
   "end_elevation_m": 420.7932365940994,
   "start_xy": [
    195373.3134399146,
    2156605.890737425
   ],
   "end_xy": [
    195356.99515647045,
    2156624.7840550235
   ]
  },
  "min_50m": {
   "gradient_pct": -1.6774422512914953,
   "start_distance_m": 591.0,
   "end_distance_m": 641.0,
   "midpoint_distance_m": 616.0,
   "start_elevation_m": 421.6291481748662,
   "end_elevation_m": 420.79042704922045,
   "start_xy": [
    195380.5148311998,
    2156598.9524405478
   ],
   "end_xy": [
    195349.7993851869,
    2156637.945395215
   ]
  },
  "min_100m": {
   "gradient_pct": 1.8950035283022544,
   "start_distance_m": 1096.0,
   "end_distance_m": 1196.0,
   "midpoint_distance_m": 1146.0,
   "start_elevation_m": 465.01850136851573,
   "end_elevation_m": 466.913504896818,
   "start_xy": [
    195477.47457221465,
    2156832.719832947
   ],
   "end_xy": [
    195555.63538353395,
    2156770.342853428
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 46.19587341678937,
   "start_distance_m": 33.0,
   "end_distance_m": 35.0,
   "midpoint_distance_m": 34.0,
   "start_elevation_m": 330.02081275289885,
   "end_elevation_m": 330.94473022123464,
   "start_xy": [
    195433.71248738348,
    2156199.7386670895
   ],
   "end_xy": [
    195432.6440195003,
    2156201.4293404412
   ]
  },
  "max_3m": {
   "gradient_pct": 44.12355089851682,
   "start_distance_m": 33.0,
   "end_distance_m": 36.0,
   "midpoint_distance_m": 34.5,
   "start_elevation_m": 330.02081275289885,
   "end_elevation_m": 331.34451927985435,
   "start_xy": [
    195433.71248738348,
    2156199.7386670895
   ],
   "end_xy": [
    195432.1097855587,
    2156202.2746771174
   ]
  }
 },
 "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"
  ]
 },
 "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:26905",
  "elevation_resolution_m": 1.0,
  "elevation_tiles": [
   "data/cache/usa/hi-east/USGS_1M_5_x19y216_HI_Hawaii_Island_Lidar_NOAA_2017_B17.tif"
  ],
  "calculated_at": "2026-09-08T04:19:54+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/hawaii-2026-09-08-batch-band1.osm.pbf",
  "osm_snapshot": "",
  "run_id": "hi-run5-260908",
  "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, HI_Hawaii_Island_Lidar_NOAA_2017_B17 (collected 2017)",
  "elevation_tile_ids": [
   "x19y216"
  ],
  "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": "South Kona",
  "county": "Hawaii"
 }
}