{
  "@context": "https://schema.org/",
  "@type": "Dataset",
  "comment": "This dataset metadata was generated with the use of AI and reviewed by an expert. If you see any mistakes please file an issue on GitHub at https://github.com/earthcube/communityCollections/issues.",
  "@id": "https://storage.googleapis.com/earthenginepartners-hansen/GFC-2023-v1.11/download.html#dataset",
  "name": "Global Forest Change (GFC) 2000–2023 — GFC-2023-v1.11",
  "description": "Global Forest Change (GFC) provides results from time-series analysis of Landsat imagery to characterize global forest extent and change from 2000 through 2023. The direct-download package is organized as 10×10 degree GeoTIFF tiles at ~30 m resolution (1 arc-second per pixel). Core layers include: tree canopy cover for year 2000 (percent canopy closure for vegetation >5 m), forest gain (2000–2012), year of gross forest cover loss (coded by loss year for 2001–2023), a data mask for land/water/no-data, and reference Landsat cloud-free composites for the first and last available years (typically ~2000 and ~2023) in red, NIR, SWIR1, and SWIR2 bands. Version 1.11 adds 2023 loss-year updates and updated multispectral imagery and includes methodological updates (including Landsat 8/9 use and reprocessing from 2011 onward).",
  "url": "https://storage.googleapis.com/earthenginepartners-hansen/GFC-2023-v1.11/download.html",
  "version": "GFC-2023-v1.11",
  "creator": [
    {
      "@type": "Person",
      "name": "Matthew C. Hansen"
    },
    {
      "@type": "Person",
      "name": "Peter V. Potapov"
    },
    {
      "@type": "Person",
      "name": "Rebecca Moore"
    },
    {
      "@type": "Person",
      "name": "Matt Hancher"
    },
    {
      "@type": "Person",
      "name": "Svetlana A. Turubanova"
    },
    {
      "@type": "Person",
      "name": "Alexandra Tyukavina"
    },
    {
      "@type": "Person",
      "name": "David Thau"
    },
    {
      "@type": "Person",
      "name": "Stephen V. Stehman"
    },
    {
      "@type": "Person",
      "name": "Scott J. Goetz"
    },
    {
      "@type": "Person",
      "name": "Thomas R. Loveland"
    },
    {
      "@type": "Person",
      "name": "Arun Kommareddy"
    },
    {
      "@type": "Person",
      "name": "Andrey Egorov"
    },
    {
      "@type": "Person",
      "name": "Lydia Chini"
    },
    {
      "@type": "Person",
      "name": "Christopher O. Justice"
    },
    {
      "@type": "Person",
      "name": "John R. G. Townshend"
    }
  ],
  "publisher": [
    {
      "@type": "Organization",
      "name": "Hansen/UMD/Google/USGS/NASA",
      "url": "https://glad.earthengine.app/view/global-forest-change"
    },
    {
      "@type": "Organization",
      "name": "Global Land Analysis and Discovery (GLAD) Laboratory, University of Maryland",
      "url": "https://glad.umd.edu/"
    }
  ],
  "keywords": [
    "forest monitoring",
    "deforestation",
    "forest loss",
    "forest gain",
    "tree canopy cover",
    "Global Forest Change",
    "GFC",
    "Landsat",
    "remote sensing",
    "GLAD",
    "University of Maryland",
    "Google Earth Engine"
  ],
  "license": "https://creativecommons.org/licenses/by/4.0/",
  "encodingFormat": [
    "image/tiff",
    "application=geotiff",
    "text/plain"
  ],
  "variableMeasured": [
    {
      "@type": "PropertyValue",
      "name": "Tree Canopy Cover in 2000",
      "alternateName": "treecover2000",
      "unitText": "percent",
      "description": "Tree canopy cover for year 2000, defined as canopy closure for vegetation taller than 5 m.",
      "temporalCoverage": "2000-01-01/2023-12-31",
      "spatialCoverage": {
        "@type": "Place",
        "name": "Global (granules provided for 180W–180E, 80N–60S)",
        "geo": {
          "@type": "GeoShape",
          "box": "-180,-60 180,80"
        }
      },
      "temporalResolution": "not detected",
      "spatialResolution": {
        "@type": "QuantitativeValue",
        "value": 30,
        "unitCode": "MTR",
        "description": "Approx. 30 m (1 arc-second per pixel; Earth Engine catalog lists ~30.92 m pixel size)."
      }
    },
    {
      "@type": "PropertyValue",
      "name": "Forest Cover Gain",
      "alternateName": "gain",
      "unitText": "binary",
      "description": "Forest gain during 2000-2012.",
      "temporalCoverage": "2000-01-01/2023-12-31",
      "spatialCoverage": {
        "@type": "Place",
        "name": "Global (granules provided for 180W–180E, 80N–60S)",
        "geo": {
          "@type": "GeoShape",
          "box": "-180,-60 180,80"
        }
      },
      "temporalResolution": "not detected",
      "spatialResolution": {
        "@type": "QuantitativeValue",
        "value": 30,
        "unitCode": "MTR",
        "description": "Approx. 30 m (1 arc-second per pixel; Earth Engine catalog lists ~30.92 m pixel size)."
      }
    },
    {
      "@type": "PropertyValue",
      "name": "Year of Gross Forest Cover Loss",
      "alternateName": "lossyear",
      "unitText": "year code",
      "description": "Year of gross forest cover loss event; 0 indicates no loss and 1-23 correspond primarily to 2001-2023.",
      "temporalCoverage": "2000-01-01/2023-12-31",
      "spatialCoverage": {
        "@type": "Place",
        "name": "Global (granules provided for 180W–180E, 80N–60S)",
        "geo": {
          "@type": "GeoShape",
          "box": "-180,-60 180,80"
        }
      },
      "temporalResolution": "not detected",
      "spatialResolution": {
        "@type": "QuantitativeValue",
        "value": 30,
        "unitCode": "MTR",
        "description": "Approx. 30 m (1 arc-second per pixel; Earth Engine catalog lists ~30.92 m pixel size)."
      }
    },
    {
      "@type": "PropertyValue",
      "name": "Data Mask",
      "alternateName": "datamask",
      "unitText": "class code",
      "description": "Data mask classes for no data, mapped land surface, and persistent water bodies.",
      "temporalCoverage": "2000-01-01/2023-12-31",
      "spatialCoverage": {
        "@type": "Place",
        "name": "Global (granules provided for 180W–180E, 80N–60S)",
        "geo": {
          "@type": "GeoShape",
          "box": "-180,-60 180,80"
        }
      },
      "temporalResolution": "not detected",
      "spatialResolution": {
        "@type": "QuantitativeValue",
        "value": 30,
        "unitCode": "MTR",
        "description": "Approx. 30 m (1 arc-second per pixel; Earth Engine catalog lists ~30.92 m pixel size)."
      }
    },
    {
      "@type": "PropertyValue",
      "name": "First Reference Landsat Composite",
      "alternateName": "first",
      "unitText": "digital number",
      "description": "Circa year-2000 Landsat cloud-free composite in red, NIR, SWIR1, and SWIR2 bands.",
      "temporalCoverage": "2000-01-01/2023-12-31",
      "spatialCoverage": {
        "@type": "Place",
        "name": "Global (granules provided for 180W–180E, 80N–60S)",
        "geo": {
          "@type": "GeoShape",
          "box": "-180,-60 180,80"
        }
      },
      "temporalResolution": "not detected",
      "spatialResolution": {
        "@type": "QuantitativeValue",
        "value": 30,
        "unitCode": "MTR",
        "description": "Approx. 30 m (1 arc-second per pixel; Earth Engine catalog lists ~30.92 m pixel size)."
      }
    },
    {
      "@type": "PropertyValue",
      "name": "Last Reference Landsat Composite",
      "alternateName": "last",
      "unitText": "digital number",
      "description": "Circa year-2023 Landsat cloud-free composite in red, NIR, SWIR1, and SWIR2 bands.",
      "temporalCoverage": "2000-01-01/2023-12-31",
      "spatialCoverage": {
        "@type": "Place",
        "name": "Global (granules provided for 180W–180E, 80N–60S)",
        "geo": {
          "@type": "GeoShape",
          "box": "-180,-60 180,80"
        }
      },
      "temporalResolution": "not detected",
      "spatialResolution": {
        "@type": "QuantitativeValue",
        "value": 30,
        "unitCode": "MTR",
        "description": "Approx. 30 m (1 arc-second per pixel; Earth Engine catalog lists ~30.92 m pixel size)."
      }
    },
    {
      "@type": "PropertyValue",
      "name": "Gross Forest Cover Loss",
      "alternateName": "loss",
      "unitText": "derived binary",
      "description": "Derived indicator for pixels where lossyear is greater than 0.",
      "temporalCoverage": "2000-01-01/2023-12-31",
      "spatialCoverage": {
        "@type": "Place",
        "name": "Global (granules provided for 180W–180E, 80N–60S)",
        "geo": {
          "@type": "GeoShape",
          "box": "-180,-60 180,80"
        }
      },
      "temporalResolution": "not detected",
      "spatialResolution": {
        "@type": "QuantitativeValue",
        "value": 30,
        "unitCode": "MTR",
        "description": "Approx. 30 m (1 arc-second per pixel; Earth Engine catalog lists ~30.92 m pixel size)."
      }
    }
  ],
  "measurementTechnique": [
    "Time-series analysis of Landsat imagery to map forest extent and change",
    "Change detection for stand-replacement disturbance (forest to non-forest)",
    "Annual updating of loss-year and reference imagery layers"
  ],
  "distribution": [
    {
      "@type": "DataDownload",
      "name": "Direct download page (tile selection map and links)",
      "description": "Interactive download instructions and example granule URLs for 10×10 degree GeoTIFF tiles.",
      "contentUrl": "https://storage.googleapis.com/earthenginepartners-hansen/GFC-2023-v1.11/download.html",
      "encodingFormat": [
        "text/html"
      ]
    },
    {
      "@type": "DataDownload",
      "name": "Example tile (treecover2000) — 40N 080W",
      "description": "Example GeoTIFF granule for tree canopy cover in year 2000; filenames encode the tile top-left corner.",
      "contentUrl": "https://storage.googleapis.com/earthenginepartners-hansen/GFC-2023-v1.11/Hansen_GFC-2023-v1.11_treecover2000_40N_080W.tif",
      "encodingFormat": [
        "image/tiff",
        "application=geotiff"
      ]
    },
    {
      "@type": "DataDownload",
      "name": "Example tile (gain) — 40N 080W",
      "contentUrl": "https://storage.googleapis.com/earthenginepartners-hansen/GFC-2023-v1.11/Hansen_GFC-2023-v1.11_gain_40N_080W.tif",
      "encodingFormat": [
        "image/tiff",
        "application=geotiff"
      ]
    },
    {
      "@type": "DataDownload",
      "name": "Example tile (lossyear) — 40N 080W",
      "contentUrl": "https://storage.googleapis.com/earthenginepartners-hansen/GFC-2023-v1.11/Hansen_GFC-2023-v1.11_lossyear_40N_080W.tif",
      "encodingFormat": [
        "image/tiff",
        "application=geotiff"
      ]
    },
    {
      "@type": "DataDownload",
      "name": "Example tile (datamask) — 40N 080W",
      "contentUrl": "https://storage.googleapis.com/earthenginepartners-hansen/GFC-2023-v1.11/Hansen_GFC-2023-v1.11_datamask_40N_080W.tif",
      "encodingFormat": [
        "image/tiff",
        "application=geotiff"
      ]
    },
    {
      "@type": "DataDownload",
      "name": "Example tile (first composite) — 40N 080W",
      "contentUrl": "https://storage.googleapis.com/earthenginepartners-hansen/GFC-2023-v1.11/Hansen_GFC-2023-v1.11_first_40N_080W.tif",
      "encodingFormat": [
        "image/tiff",
        "application=geotiff"
      ]
    },
    {
      "@type": "DataDownload",
      "name": "Example tile (last composite) — 40N 080W",
      "contentUrl": "https://storage.googleapis.com/earthenginepartners-hansen/GFC-2023-v1.11/Hansen_GFC-2023-v1.11_last_40N_080W.tif",
      "encodingFormat": [
        "image/tiff",
        "application=geotiff"
      ]
    },
    {
      "@type": "DataDownload",
      "name": "Layer-wide URL list: treecover2000",
      "description": "Text file listing URLs for all granules for the treecover2000 layer.",
      "contentUrl": "https://storage.googleapis.com/earthenginepartners-hansen/GFC-2023-v1.11/treecover2000.txt",
      "encodingFormat": [
        "text/plain"
      ]
    },
    {
      "@type": "DataDownload",
      "name": "Layer-wide URL list: gain",
      "contentUrl": "https://storage.googleapis.com/earthenginepartners-hansen/GFC-2023-v1.11/gain.txt",
      "encodingFormat": [
        "text/plain"
      ]
    },
    {
      "@type": "DataDownload",
      "name": "Layer-wide URL list: lossyear",
      "contentUrl": "https://storage.googleapis.com/earthenginepartners-hansen/GFC-2023-v1.11/lossyear.txt",
      "encodingFormat": [
        "text/plain"
      ]
    },
    {
      "@type": "DataDownload",
      "name": "Layer-wide URL list: datamask",
      "contentUrl": "https://storage.googleapis.com/earthenginepartners-hansen/GFC-2023-v1.11/datamask.txt",
      "encodingFormat": [
        "text/plain"
      ]
    },
    {
      "@type": "DataDownload",
      "name": "Layer-wide URL list: first",
      "contentUrl": "https://storage.googleapis.com/earthenginepartners-hansen/GFC-2023-v1.11/first.txt",
      "encodingFormat": [
        "text/plain"
      ]
    },
    {
      "@type": "DataDownload",
      "name": "Layer-wide URL list: last",
      "contentUrl": "https://storage.googleapis.com/earthenginepartners-hansen/GFC-2023-v1.11/last.txt",
      "encodingFormat": [
        "text/plain"
      ]
    },
    {
      "@type": "DataDownload",
      "name": "Google Earth Engine access (asset)",
      "description": "Analyze the dataset directly in Google Earth Engine using asset ID UMD/hansen/global_forest_change_2023_v1_11.",
      "contentUrl": "https://developers.google.com/earth-engine/datasets/catalog/UMD_hansen_global_forest_change_2023_v1_11",
      "encodingFormat": [
        "text/html"
      ]
    },
    {
      "@type": "DataDownload",
      "name": "Web visualization (recommended linking URL)",
      "description": "Interactive visualization site recommended by the dataset providers for linking/citation.",
      "contentUrl": "https://glad.earthengine.app/view/global-forest-change",
      "encodingFormat": [
        "text/html"
      ]
    }
  ],
  "citation": [
    {
      "@type": "ScholarlyArticle",
      "name": "High-Resolution Global Maps of 21st-Century Forest Cover Change",
      "isPartOf": {
        "@type": "Periodical",
        "name": "Science"
      },
      "datePublished": "2013-11-15",
      "identifier": [
        {
          "@type": "PropertyValue",
          "propertyID": "doi",
          "value": "10.1126/science.1244693"
        }
      ],
      "sameAs": "https://doi.org/10.1126/science.1244693"
    }
  ],
  "about": [
    {
      "@type": "Thing",
      "name": "Forest monitoring"
    },
    {
      "@type": "Thing",
      "name": "Deforestation"
    },
    {
      "@type": "Thing",
      "name": "Land cover change"
    },
    {
      "@type": "Thing",
      "name": "Remote sensing"
    },
    {
      "@type": "Thing",
      "name": "Landsat"
    }
  ]
}