{
  "type": "Collection",
  "id": "erddap/dhw_5km",
  "stac_version": "1.1.0",
  "description": "NOAA Coral Reef Watch daily global 5km satellite coral bleaching heat stress monitoring: sea surface temperature (SST), SST anomaly, degree heating weeks (DHW), bleaching alert area (BAA), and hotspot. Served live from PacIOOS ERDDAP; referenced in place for computing place statistics in the browser via griddap.parquet.",
  "links": [
    {
      "rel": "root",
      "href": "../../catalog.json",
      "type": "application/json"
    },
    {
      "rel": "parent",
      "href": "../../catalog.json",
      "type": "application/json"
    },
    {
      "rel": "agents",
      "href": "./AGENTS.md",
      "type": "text/markdown",
      "title": "Agent/LLM usage guide"
    },
    {
      "rel": "describedby",
      "href": "./README.md",
      "type": "text/markdown",
      "title": "Human-readable documentation"
    },
    {
      "rel": "via",
      "href": "https://pae-paha.pacioos.hawaii.edu/erddap/info/dhw_5km/index.html",
      "type": "text/html",
      "title": "NOAA Coral Reef Watch — Daily Global 5km SST + DHW"
    }
  ],
  "stac_extensions": [
    "https://stac-extensions.github.io/datacube/v2.2.0/schema.json",
    "https://schemas.portolan-sdi.org/portolan/v0.2.0/schema.json"
  ],
  "updated": "2026-09-15T00:00:00Z",
  "title": "NOAA Coral Reef Watch — Daily Global 5km SST + DHW",
  "extent": {
    "spatial": {
      "bbox": [
        [
          -180.0,
          -89.975,
          180.0,
          89.975
        ]
      ]
    },
    "temporal": {
      "interval": [
        [
          "1985-04-01T12:00:00Z",
          null
        ]
      ]
    }
  },
  "license": "CC0-1.0",
  "providers": [
    {
      "name": "NOAA Coral Reef Watch (CRW)",
      "roles": [
        "producer",
        "licensor"
      ],
      "url": "https://coralreefwatch.noaa.gov"
    },
    {
      "name": "Ocean Metrics LLC",
      "roles": [
        "processor"
      ],
      "url": "https://oceanmetrics.io"
    },
    {
      "name": "PacIOOS (Pacific Islands Ocean Observing System)",
      "roles": [
        "host"
      ],
      "url": "https://www.pacioos.hawaii.edu"
    }
  ],
  "cube:dimensions": {
    "time": {
      "type": "temporal",
      "description": "reference time",
      "extent": [
        "1985-04-01T12:00:00Z",
        null
      ],
      "step": "P1D"
    },
    "latitude": {
      "type": "spatial",
      "axis": "y",
      "description": "Latitude",
      "extent": [
        -89.975,
        89.975
      ],
      "step": 0.05,
      "reference_system": 4326
    },
    "longitude": {
      "type": "spatial",
      "axis": "x",
      "description": "Longitude",
      "extent": [
        -179.975,
        179.975
      ],
      "step": 0.05,
      "reference_system": 4326
    }
  },
  "cube:variables": {
    "CRW_SST": {
      "dimensions": [
        "time",
        "latitude",
        "longitude"
      ],
      "type": "data",
      "unit": "Celsius",
      "description": "sea surface temperature"
    },
    "CRW_SSTANOMALY": {
      "dimensions": [
        "time",
        "latitude",
        "longitude"
      ],
      "type": "data",
      "unit": "Celsius",
      "description": "sea surface temperature anomaly"
    },
    "CRW_DHW": {
      "dimensions": [
        "time",
        "latitude",
        "longitude"
      ],
      "type": "data",
      "unit": "Celsius weeks",
      "description": "degree heating week"
    },
    "CRW_BAA": {
      "dimensions": [
        "time",
        "latitude",
        "longitude"
      ],
      "type": "data",
      "unit": "1",
      "description": "bleaching alert area (categorical, 0-4)",
      "erddap-places:categorical": true,
      "erddap-places:classes": {
        "0": "No Stress",
        "1": "Bleaching Watch",
        "2": "Bleaching Warning",
        "3": "Alert Level 1",
        "4": "Alert Level 2"
      }
    },
    "CRW_HOTSPOT": {
      "dimensions": [
        "time",
        "latitude",
        "longitude"
      ],
      "type": "data",
      "unit": "Celsius",
      "description": "coral bleaching hotspot"
    }
  },
  "erddap:base_url": "https://pae-paha.pacioos.hawaii.edu/erddap",
  "erddap:dataset_id": "dhw_5km",
  "erddap:protocol": "griddap",
  "erddap:version": "2.29",
  "erddap:cors": true,
  "erddap:formats": [
    "parquet",
    "csvp",
    "json"
  ],
  "erddap:lon_range": [
    -180,
    180
  ],
  "erddap:lat_descending": true,
  "assets": {
    "griddap": {
      "href": "https://pae-paha.pacioos.hawaii.edu/erddap/griddap/dhw_5km.parquet?{variable}[({t0}):1:({t1})][({lat_max}):1:({lat_min})][({lon_min}):1:({lon_max})]",
      "type": "application/vnd.apache.parquet",
      "title": "griddap query template (percent-encode each constraint separately)",
      "roles": [
        "data",
        "external"
      ],
      "table:columns": [
        {
          "name": "time",
          "type": "timestamp",
          "description": "reference time"
        },
        {
          "name": "latitude",
          "type": "double",
          "description": "Latitude, degrees_north"
        },
        {
          "name": "longitude",
          "type": "double",
          "description": "Longitude, degrees_east"
        },
        {
          "name": "CRW_SST",
          "type": "double",
          "description": "sea surface temperature, Celsius"
        },
        {
          "name": "CRW_SSTANOMALY",
          "type": "double",
          "description": "sea surface temperature anomaly, Celsius"
        },
        {
          "name": "CRW_DHW",
          "type": "double",
          "description": "degree heating week, Celsius weeks"
        },
        {
          "name": "CRW_BAA",
          "type": "double",
          "description": "bleaching alert area, categorical"
        },
        {
          "name": "CRW_HOTSPOT",
          "type": "double",
          "description": "coral bleaching hotspot, Celsius"
        }
      ]
    },
    "metadata": {
      "href": "https://pae-paha.pacioos.hawaii.edu/erddap/info/dhw_5km/index.json",
      "type": "application/json",
      "title": "ERDDAP dataset metadata (info endpoint)",
      "roles": [
        "metadata",
        "external"
      ]
    }
  }
}