-
ALOS-2 PALSAR-2 StripMap de niveau 2.1
À partir de la nuit du 1er janvier 2024, à la demande des ministères japonais et d'organisations associées, la JAXA a mis en œuvre l'observation d'urgence ALOS-2 PALSAR-2. La JAXA s'attend à ce que ces données d'observation d'urgence soient extrêmement utiles pour la gestion des catastrophes. Elle a donc décidé de les ouvrir sur … alos2 eroc jaxa palsar2 radar sar -
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 -
PALSAR-2 ScanSAR de niveau 2.2
Les données de rétrodiffusion normalisées de la résolution de 25 m du ScanSAR PALSAR-2 correspondent au mode d'observation à large couverture de PALSAR-2, avec une largeur d'observation de 350 km. Les images SAR ont été orthorectifiées et corrigées de la pente à l'aide du modèle de surface numérique ALOS World 3D - 30 m (AW3D30). Les données de polarisation sont stockées… alos2 eroc jaxa palsar2 radar sar
Datasets tagged palsar2 in Earth Engine
[null,null,[],[[["\u003cp\u003eThis page provides access to a variety of JAXA ALOS PALSAR and PALSAR-2 datasets, including StripMap, ScanSAR, and global mosaics.\u003c/p\u003e\n"],["\u003cp\u003eDatasets include both raw SAR data and derived products such as forest/non-forest classifications.\u003c/p\u003e\n"],["\u003cp\u003eGlobal mosaics are available at 25m resolution and are composed of carefully selected strips to minimize cloud and snow cover.\u003c/p\u003e\n"],["\u003cp\u003ePALSAR-2 ScanSAR data offers broad area coverage with an observation width of 350 km and has been orthorectified and slope corrected.\u003c/p\u003e\n"],["\u003cp\u003eEmergency observation data from ALOS-2 PALSAR-2, starting January 1st, 2024, is being made openly accessible for disaster management purposes.\u003c/p\u003e\n"]]],[],null,["# Datasets tagged palsar2 in Earth Engine\n\n-\n\n |--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n | [### ALOS-2 PALSAR-2 StripMap Level 2.1](/earth-engine/datasets/catalog/JAXA_ALOS_PALSAR-2_Level2_1_StripMap_202401) |\n | Starting from the night of January 1st, 2024, based on the request from Japanese ministries and related organization, JAXA implemented ALOS-2 PALSAR-2 emergency observation. Since JAXA expects these emergency observation data to be extremely useful for disaster management, JAXA decided to open these data on ... |\n | [alos2](/earth-engine/datasets/tags/alos2) [eroc](/earth-engine/datasets/tags/eroc) [jaxa](/earth-engine/datasets/tags/jaxa) [palsar2](/earth-engine/datasets/tags/palsar2) [radar](/earth-engine/datasets/tags/radar) [sar](/earth-engine/datasets/tags/sar) |\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) |\n\n-\n\n |------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n | [### PALSAR-2 ScanSAR Level 2.2](/earth-engine/datasets/catalog/JAXA_ALOS_PALSAR-2_Level2_2_ScanSAR) |\n | The 25 m PALSAR-2 ScanSAR is normalized backscatter data of PALSAR-2 broad area observation mode with observation width of 350 km. The SAR imagery was ortho-rectificatied and slope corrected using the ALOS World 3D - 30 m (AW3D30) Digital Surface Model. Polarization data are stored ... |\n | [alos2](/earth-engine/datasets/tags/alos2) [eroc](/earth-engine/datasets/tags/eroc) [jaxa](/earth-engine/datasets/tags/jaxa) [palsar2](/earth-engine/datasets/tags/palsar2) [radar](/earth-engine/datasets/tags/radar) [sar](/earth-engine/datasets/tags/sar) |"]]