| Titre : | Global Forest Change 2000–2019 |
| Auteurs : | University of Maryland, Auteur |
| Type de document : | Site |
| Langues: | Anglais |
| Catégories : |
[Eurovoc] AGRICULTURE, SYLVICULTURE ET PÊCHE > forêt [Eurovoc] ÉCONOMIE > analyse économique > statistique [Eurovoc] ENVIRONNEMENT > détérioration de l'environnement > dégradation de l'environnement > déboisement [Eurovoc] ENVIRONNEMENT > politique de l'environnement > protection de l'environnement > zone protégée |
| Tags : | time series |
| Note de contenu : |
Tree canopy cover for year 2000 (treecover2000)
Tree cover in the year 2000, defined as canopy closure for all vegetation taller than 5m in height. Encoded as a percentage per output grid cell, in the range 0–100. Global forest cover gain 2000–2012 (gain) Forest gain during the period 2000–2012, defined as the inverse of loss, or a non-forest to forest change entirely within the study period. Encoded as either 1 (gain) or 0 (no gain). Year of gross forest cover loss event (lossyear) Forest loss during the period 2000–2019, defined as a stand-replacement disturbance, or a change from a forest to non-forest state. Encoded as either 0 (no loss) or else a value in the range 1–17, representing loss detected primarily in the year 2001–2019, respectively. Data mask (datamask) Three values representing areas of no data (0), mapped land surface (1), and permanent water bodies (2). Circa year 2000 Landsat 7 cloud-free image composite (first) Reference multispectral imagery from the first available year, typically 2000. If no cloud-free observations were available for year 2000, imagery was taken from the closest year with cloud-free data, within the range 1999–2012. Circa year 2019 Landsat cloud-free image composite (last) Reference multispectral imagery from the last available year, typically 2019. If no cloud-free observations were available for year 2019, imagery was taken from the closest year with cloud-free data, within the range 2010–2015. |
| En ligne : | http://earthenginepartners.appspot.com/science-2013-global-forest |
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