[
  {
    "field": "dataset",
    "description": "Great Salt Lake bathymetry (Casey-Root)"
  },
  {
    "field": "elevation_units",
    "description": "feet (NGVD29)"
  },
  {
    "field": "elevation_increment",
    "description": "0.01 ft"
  },
  {
    "field": "elevation_reference",
    "description": "South Arm elevation is primary reference; North Arm may be modeled 1 ft lower in some analyses"
  },
  {
    "field": "area_units",
    "description": "acres"
  },
  {
    "field": "volume_units",
    "description": "acre-feet"
  },
  {
    "field": "total_definition",
    "description": "south_arm + north_arm + bear_river_bay + farmington_bay"
  },
  {
    "field": "system_total_definition",
    "description": "south_arm + north_arm + bear_river_bay (farmington_bay treated separately)"
  },
  {
    "field": "source",
    "description": "USGS Casey-Root bathymetry"
  },
  {
    "field": "basin_plan_total_area_ac",
    "description": "Total lake surface area (acres) including south_arm + north_arm + bear_river_bay + farmington_bay; consistent with Utah river basin plan accounting framework"
  },
  {
    "field": "basin_plan_total_volume_af",
    "description": "Total lake volume (acre-feet) including south_arm + north_arm + bear_river_bay + farmington_bay; consistent with Utah river basin plan accounting framework"
  },
  {
    "field": "hydromapper_total_area_ac",
    "description": "Total lake surface area (acres) including south_arm + north_arm + bear_river_bay; excludes farmington_bay, which is treated as a managed wetland compartment in Hydromapper-style accounting. Populated 2026-09-18 -- these columns were previously blank in the published CSV/JSON despite being defined here; values are now computed as south_arm_area_ac + north_arm_area_ac + bear_river_bay_area_ac for every row."
  },
  {
    "field": "hydromapper_total_volume_af",
    "description": "Total lake volume (acre-feet) including south_arm + north_arm + bear_river_bay; excludes farmington_bay, which is treated as a managed wetland compartment in Hydromapper-style accounting. Populated 2026-09-18 -- these columns were previously blank in the published CSV/JSON despite being defined here; values are now computed as south_arm_volume_af + north_arm_volume_af + bear_river_bay_volume_af for every row."
  },
  {
    "field": "farmington_bay_treatment",
    "description": "farmington_bay is included in basin_plan totals but excluded from hydromapper totals due to its function as a managed wetland system with distinct hydrologic behavior"
  },
  {
    "field": "revision_note",
    "description": "2026-09-18: populated previously-blank hydromapper_total_area_ac / hydromapper_total_volume_af columns in the CSV and JSON releases (values were defined in this metadata but never computed in the data files). Also standardized the JSON release to use the same field names as the CSV release (JSON previously used total_area_ac / total_volume_af for the same quantity the CSV calls basin_plan_total_area_ac / basin_plan_total_volume_af -- confirmed numerically identical before renaming). Fixed a trailing comma embedded in the elevation_increment field name in the CSV metadata key. No south_arm/north_arm/bear_river_bay/farmington_bay component values changed."
  }
]