{
  "created_utc": "2026-10-12T14:54:59.772005+00:00",
  "input_boundary": "Launglon_Township.geojson",
  "boundary_area_km2": 788.4506373929006,
  "dataset": "JAXA ALOS World 3D-30m (AW3D30), Microsoft Planetary Computer alos-dem collection",
  "stac_collection": "https://planetarycomputer.microsoft.com/api/stac/v1/collections/alos-dem",
  "product_version": "Not specified in the retrieved STAC items; not asserted to be latest JAXA release",
  "grid_crs": "EPSG:32647",
  "grid_resolution_m": 30,
  "resampling": "nearest neighbor",
  "routing": "D8, pyflwdir priority-flood depression filling and flat routing (Wang & Liu, 2006)",
  "outlets": "All land drainage outlets adjoining sea or the DEM edge; no manual pour points",
  "ocean_handling": "Exclude <=0 m connected components reaching analysis edge; preserve isolated inland <=0 m cells",
  "stream_threshold_km2": 1.0,
  "buffer_checks": [
    {
      "buffer_m": 20000,
      "grid_shape": [
        3881,
        2559
      ],
      "selected_basin_count": 2531,
      "edge_affected_basin_count": 1
    },
    {
      "buffer_m": 40000,
      "grid_shape": [
        5214,
        3892
      ],
      "selected_basin_count": 2536,
      "edge_affected_basin_count": 0
    }
  ],
  "basin_count": 2536,
  "basins_at_least_1_km2_full_area": 59,
  "basins_at_least_1_km2_inside_township": 57,
  "edge_affected_basin_count": 0,
  "township_raster_land_area_km2": 778.2498,
  "delineated_area_inside_township_km2": 778.1532436611215,
  "undelineated_boundary_area_km2": 10.297393731772669,
  "overlap_area_m2": 5.4836273193359375e-06,
  "invalid_geometry_count": 0,
  "stream_segment_count": 366,
  "cells_filled_percent": 8.178119673143508,
  "fill_depth_max_m": 29.0,
  "fill_depth_p99_m": 2.0,
  "elevation_land_min_m": -23.0,
  "elevation_land_max_m": 598.0,
  "python_version": "3.12.1",
  "pyflwdir_version": "0.5.12",
  "limitations": [
    "AW3D30 is a surface model: vegetation and buildings can alter inferred drainage.",
    "Sea/land separation is inferred from connected sea-level DEM cells; coastal lowlands and tidal drainage remain uncertain.",
    "Hydrology is modelled, without stream burning, surveyed outlets, or field verification.",
    "The clipped GeoJSON describes township portions of watersheds; consult full extents and full_area_km2 for entire catchments.",
    "Minor coastal drainage basins are retained, including catchments below the 1 km2 stream-display threshold."
  ]
}