{
  "type": "Collection",
  "id": "DigitalCoast_DAV:id_9269",
  "stac_version": "1.1.0",
  "description": "Product: Processed, classified lidar point cloud data tiles in LAS 1.4 format.\n        Geographic Extent: Approximately 10,547 square miles across 6 AOIs in California.\n        Dataset Description: The CA-AZ FEMA R9 Lidar  lidar project called for the planning, acquisition, processing, and production of derivative products of lidar data to be collected at a nominal pulse spacing (NPS) of 0.7 meters. Project specifications were based on the U.S. Geological Survey National Geospatial Program Base Lidar Specification, Version 1.2. The data was developed based on a horizontal datum/projection of NAD83 (2011) State Plane California I & IV (FIPS Zone 0401 & 0404), US Survey Feet, and a vertical datum of NAVD88 (GEOID12B), US Survey Feet. Lidar data was delivered as processed LAS 1.4 files formatted to 10,516 individual 4,500-feet x 4,500-feet tiles.\n        Ground Conditions: Lidar was collected in 2018 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, Woolpert established 148 ground control points across all California AOIs that were used to calibrate the lidar to known ground locations established throughout the project area. An additional 258 independent accuracy checkpoints (145 NVA points and 113 VVA points), were collected across all California AOIs and used to assess the vertical accuracy of the data. These checkpoints were not used to calibrate or post process the data.",
  "links": [
    {
      "rel": "root",
      "href": "./collection.json",
      "type": "application/json",
      "title": "2018 FEMA  Lidar: Region 9, CA"
    },
    {
      "rel": "self",
      "href": "https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/9269/stac/collection.json",
      "type": "application/json"
    },
    {
      "rel": "child",
      "href": "./ca_fema_z4_b1/collection.json",
      "type": "application/json"
    },
    {
      "rel": "child",
      "href": "./ca_fema_z4_b2/collection.json",
      "type": "application/json"
    },
    {
      "rel": "child",
      "href": "./ca_fema_z1/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": 7,
      "name": "Low_Point__noise_",
      "description": "Low Point (noise)"
    },
    {
      "value": 9,
      "name": "Water",
      "description": "Water"
    },
    {
      "value": 10,
      "name": "Ignored_Ground__near_breakline_",
      "description": "Ignored Ground (near breakline)"
    },
    {
      "value": 17,
      "name": "Bridge_Deck",
      "description": "Bridge Deck"
    },
    {
      "value": 18,
      "name": "High_Noise",
      "description": "High Noise"
    }
  ],
  "title": "2018 FEMA  Lidar: Region 9, CA",
  "extent": {
    "spatial": {
      "bbox": [
        [
          -123.0056217838435,
          34.96347024628771,
          -120.19331026303807,
          41.64828271595558
        ]
      ]
    },
    "temporal": {
      "interval": [
        [
          "2018-01-22T21:41:01Z",
          "2018-01-22T21:48:56Z"
        ]
      ]
    }
  },
  "license": "CC-BY-1.0"
}