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Carte mondiale des forêts/non-forêts PALSAR-2/PALSAR en trois classes
Une version plus récente de ce jeu de données avec quatre classes pour 2017-2020 est disponible sur JAXA/ALOS/PALSAR/YEARLY/FNF4. La carte mondiale des forêts et des non-forêts (FNF) est générée en classant l'image SAR (coefficient de rétrodiffusion) dans la mosaïque SAR PALSAR-2/PALSAR à résolution mondiale de 25 m, de sorte que les pixels à rétrodiffusion forte et faible … alos alos2 classification eroc forest forest-biomass -
Carte mondiale des forêts et non-forêts PALSAR-2/PALSAR en quatre classes
La carte mondiale forêt/non-forêt est générée en classant l'image SAR (coefficient de rétrodiffusion) dans la mosaïque SAR PALSAR-2/PALSAR globale à une résolution de 25 m, de sorte que les pixels à rétrodiffusion forte et faible soient attribués aux catégories "forêt" et "non-forêt", respectivement. Ici, "forêt" est défini comme la forêt naturelle avec… alos alos2 classification eroc forest forest-biomass -
Mosaïque annuelle globale PALSAR-2/PALSAR, version 1
Une version plus récente de cet ensemble de données avec des données pour 2015-2021 est disponible dans JAXA/ALOS/PALSAR/YEARLY/SAR_EPOCH. La mosaïque globale PALSAR/PALSAR-2 de 25 m est une image SAR globale sans couture créée en assemblant des bandes d'images SAR de PALSAR/PALSAR-2. Pour chaque année et chaque zone géographique, les données de bande ont été sélectionnées… alos alos2 eroc jaxa palsar palsar2 -
Mosaïque annuelle globale PALSAR-2/PALSAR, version 2
La mosaïque globale PALSAR/PALSAR-2 de 25 m est une image SAR globale sans couture créée en assemblant des bandes d'images SAR de PALSAR/PALSAR-2. Pour chaque année et chaque zone géographique, les données de bande ont été sélectionnées par inspection visuelle des mosaïques de navigation disponibles sur la période, celles qui présentaient un minimum de … alos alos2 eroc jaxa palsar palsar2
Datasets tagged palsar in Earth Engine
[null,null,[],[[["\u003cp\u003eThis collection provides global 25m resolution PALSAR-2/PALSAR mosaics, including forest/non-forest classifications and yearly SAR mosaics.\u003c/p\u003e\n"],["\u003cp\u003eForest/non-forest maps are available in both 3-class (Global 3-class PALSAR-2/PALSAR Forest/Non-Forest Map) and 4-class (Global 4-class PALSAR-2/PALSAR Forest/Non-Forest Map) versions, classifying areas as forest or non-forest based on backscatter intensity.\u003c/p\u003e\n"],["\u003cp\u003eTwo versions of yearly mosaics are available: version 1 (Global PALSAR-2/PALSAR Yearly Mosaic, version 1) and an updated version 2 (Global PALSAR-2/PALSAR Yearly Mosaic, version 2) with data for 2015-2021, created by mosaicking strips of SAR imagery selected for minimum cloud and snow cover.\u003c/p\u003e\n"],["\u003cp\u003e"Forest" in these datasets is defined as natural forest with tree crown cover greater than 10% and tree height exceeding 5 meters.\u003c/p\u003e\n"]]],[],null,["# Datasets tagged palsar in Earth Engine\n\n-\n\n |-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n | [### Global 3-class PALSAR-2/PALSAR Forest/Non-Forest Map](/earth-engine/datasets/catalog/JAXA_ALOS_PALSAR_YEARLY_FNF) |\n | A newer version of this dataset with 4 classes for 2017-2020 can be found in JAXA/ALOS/PALSAR/YEARLY/FNF4 The global forest/non-forest map (FNF) is generated by classifying the SAR image (backscattering coefficient) in the global 25m resolution PALSAR-2/PALSAR SAR mosaic so that strong and low backscatter pixels ... |\n | [alos](/earth-engine/datasets/tags/alos) [alos2](/earth-engine/datasets/tags/alos2) [classification](/earth-engine/datasets/tags/classification) [eroc](/earth-engine/datasets/tags/eroc) [forest](/earth-engine/datasets/tags/forest) [forest-biomass](/earth-engine/datasets/tags/forest-biomass) |\n\n-\n\n |-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n | [### Global 4-class PALSAR-2/PALSAR Forest/Non-Forest Map](/earth-engine/datasets/catalog/JAXA_ALOS_PALSAR_YEARLY_FNF4) |\n | The global forest/non-forest map (FNF) is generated by classifying the SAR image (backscattering coefficient) in the global 25m resolution PALSAR-2/PALSAR SAR mosaic so that strong and low backscatter pixels are assigned as \"forest\" and \"non-forest\", respectively. Here, \"forest\" is defined as the natural forest with ... |\n | [alos](/earth-engine/datasets/tags/alos) [alos2](/earth-engine/datasets/tags/alos2) [classification](/earth-engine/datasets/tags/classification) [eroc](/earth-engine/datasets/tags/eroc) [forest](/earth-engine/datasets/tags/forest) [forest-biomass](/earth-engine/datasets/tags/forest-biomass) |\n\n-\n\n |---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n | [### Global PALSAR-2/PALSAR Yearly Mosaic, version 1](/earth-engine/datasets/catalog/JAXA_ALOS_PALSAR_YEARLY_SAR) |\n | A newer version of this dataset with data for 2015-2021 can be found in JAXA/ALOS/PALSAR/YEARLY/SAR_EPOCH The global 25m PALSAR/PALSAR-2 mosaic is a seamless global SAR image created by mosaicking strips of SAR imagery from PALSAR/PALSAR-2. For each year and location, the strip data were selected ... |\n | [alos](/earth-engine/datasets/tags/alos) [alos2](/earth-engine/datasets/tags/alos2) [eroc](/earth-engine/datasets/tags/eroc) [jaxa](/earth-engine/datasets/tags/jaxa) [palsar](/earth-engine/datasets/tags/palsar) [palsar2](/earth-engine/datasets/tags/palsar2) |\n\n-\n\n |-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n | [### Global PALSAR-2/PALSAR Yearly Mosaic, version 2](/earth-engine/datasets/catalog/JAXA_ALOS_PALSAR_YEARLY_SAR_EPOCH) |\n | The global 25m PALSAR/PALSAR-2 mosaic is a seamless global SAR image created by mosaicking strips of SAR imagery from PALSAR/PALSAR-2. For each year and location, the strip data were selected through visual inspection of the browse mosaics available over the period, with those showing minimum ... |\n | [alos](/earth-engine/datasets/tags/alos) [alos2](/earth-engine/datasets/tags/alos2) [eroc](/earth-engine/datasets/tags/eroc) [jaxa](/earth-engine/datasets/tags/jaxa) [palsar](/earth-engine/datasets/tags/palsar) [palsar2](/earth-engine/datasets/tags/palsar2) |"]]