{
  "type": "Collection",
  "id": "DigitalCoast_DAV:id_14673",
  "stac_version": "1.1.0",
  "description": "Product: These lidar data are processed Classified LAS 1.4 files, formatted to individual 600 m x 600 m tiles; used to create intensity images, 3D breaklines, and hydro-flattened DEMs as necessary.\n\nGeographic Extent: Parts of 14 counties in California, covering approximately 2097 total square miles. These counties are: Alameda, Contra Costa, Marin, Napa, Sacramento, San Francisco, San Joaquin, San Mateo, Santa Clara, Solano, Sonoma, Stanislaus, Sutter, Yolo.\n\nDataset Description: The SanFrancisco_Baylands_Lidar project called for the planning, acquisition, processing, and derivative products of lidar data to be collected at a nominal pulse spacing (NPS) of 0.29 meters. Project specifications are based on the U.S. Geological Survey National Geospatial Program Base LiDAR Specification, 2024 Rev. A. LiDAR data were delivered as processed Classified LAS 1.4 files formatted to individual 600 m x 600 m tiles, as tiled intensity imagery, and as tiled bare earth DEMs; all tiled to the same 600 m x 600 m schema. Continuous breaklines were produced in Esri file geodatabase format.\n\nGround Conditions: LiDAR was collected in summer and fall 2025, while no snow was on the ground and rivers were at or below normal levels. In order to post process the LiDAR data to meet task order specifications and meet ASPRS vertical accuracy guidelines, NV5 Geospatial utilized a total of 51 ground control points that were used to calibrate the LiDAR to known ground locations established throughout the project area. An additional 115 independent accuracy checkpoints, 84 in Bare Earth and Urban landcovers (84 NVA points), 31 in Tall Weeds categories (31 VVA points), were used to assess the vertical accuracy of the data. These checkpoints were not used to calibrate or post process the data.\n\nThese data were provided to the NOAA Office for Coastal Management (OCM) from the San Francisco Estuary Institute (SFEI) for the purpose of making the data publicly available for custom and bulk downloads from the NOAA Digital Coast Data Access Viewer.",
  "links": [
    {
      "rel": "root",
      "href": "./collection.json",
      "type": "application/json",
      "title": "2025 Lidar: San Francisco Bay - Delta Estuary, CA"
    },
    {
      "rel": "self",
      "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/14673/stac/collection.json",
      "type": "application/json"
    },
    {
      "rel": "child",
      "href": "./zone_3/collection.json",
      "type": "application/json"
    },
    {
      "rel": "child",
      "href": "./zone_2/collection.json",
      "type": "application/json"
    }
  ],
  "stac_extensions": [
    "https://stac-extensions.github.io/classification/v2.0.0/schema.json"
  ],
  "classification:classes": [
    {
      "value": 1,
      "name": "Unclassified",
      "description": "Unclassified"
    },
    {
      "value": 2,
      "name": "Ground",
      "description": "Ground"
    },
    {
      "value": 3,
      "name": "Low_Vegetation",
      "description": "Low Vegetation"
    },
    {
      "value": 4,
      "name": "Medium_Vegetation",
      "description": "Medium Vegetation"
    },
    {
      "value": 5,
      "name": "High_Vegetation",
      "description": "High Vegetation"
    },
    {
      "value": 6,
      "name": "Building",
      "description": "Building"
    },
    {
      "value": 9,
      "name": "Water",
      "description": "Water"
    },
    {
      "value": 14,
      "name": "Wire-Conductor",
      "description": "Wire-Conductor"
    },
    {
      "value": 15,
      "name": "Transmission_Tower",
      "description": "Transmission Tower"
    },
    {
      "value": 17,
      "name": "Bridge_Deck",
      "description": "Bridge Deck"
    },
    {
      "value": 20,
      "name": "Ignored_Ground__near_breakline_",
      "description": "Ignored Ground (near breakline)"
    },
    {
      "value": 22,
      "name": "Temporal_Exclusion",
      "description": "Temporal Exclusion"
    }
  ],
  "title": "2025 Lidar: San Francisco Bay - Delta Estuary, CA",
  "extent": {
    "spatial": {
      "bbox": [
        [
          -122.6627849335829,
          37.3718204485436,
          -121.19545277617182,
          38.78854094789922
        ]
      ]
    },
    "temporal": {
      "interval": [
        [
          "2025-08-22T15:43:15Z",
          "2025-08-22T15:43:18Z"
        ]
      ]
    }
  },
  "license": "CC-BY-1.0"
}