Carte au niveau national de la densité de biomasse ligneuse vivante aérienne pour les pays tropicaux à 500 m. Cet ensemble de données a été assemblé à partir d'une combinaison de mesures de terrain colocalisées, d'observations LiDAR et d'images enregistrées par le radiomètre spectral pour l'imagerie de résolution moyenne (MODIS).
Bracelets
Taille des pixels 500 mètres
Bandes de fréquences
Nom
Unités
Min
Max
Taille des pixels
Description
Mg
Mg/ha
0*
503*
mètres
Mégagrammes de biomasse ligneuse vivante aérienne par hectare
* valeur minimale ou maximale estimée
Conditions d'utilisation
Conditions d'utilisation
L'ensemble de données au niveau national est disponible sans frais à des fins scientifiques, de conservation et éducatives.
Les utilisateurs reconnaissent qu'ils sont eux-mêmes responsables de déterminer si l'ensemble de données est de qualité et adapté à leurs objectifs.
Les utilisateurs s'engagent à faire des efforts raisonnables pour fournir des commentaires appropriés et signaler toute erreur importante qu'ils identifient dans l'ensemble de données.
Citations
Citations :
A. Baccini, S J. Goetz, W.S. Walker, N. T. Laporte, M. Sun, D.
Sulla-Menashe, J. Hackler, P.S.A. Beck, R. Dubayah, M.A. Friedl, S. Samanta
et R. A. Houghton. Les estimations des émissions de dioxyde de carbone dues à la déforestation tropicale ont été améliorées grâce aux cartes de densité de carbone. 2012 Nature Climate Change,
doi:10.1038/NCLIMATE1354
Carte nationale de la densité de biomasse ligneuse vivante aérienne pour les pays tropicaux à 500 m. Cet ensemble de données a été assemblé à partir d'une combinaison de mesures de terrain colocalisées, d'observations LiDAR et d'images enregistrées par le radiomètre spectral pour imagerie de résolution moyenne (MODIS).
[null,null,[],[[["\u003cp\u003eThis dataset provides a national-level map of above-ground live woody biomass density for tropical countries at a 500m resolution.\u003c/p\u003e\n"],["\u003cp\u003eThe dataset was created using a combination of field measurements, LiDAR observations, and MODIS imagery.\u003c/p\u003e\n"],["\u003cp\u003eIt represents above-ground live woody biomass density in Megagrams per Hectare (Mg/ha).\u003c/p\u003e\n"],["\u003cp\u003eThis dataset is freely available for scientific, conservation, and educational purposes.\u003c/p\u003e\n"],["\u003cp\u003eThe data is primarily intended for research and analysis of carbon stocks and deforestation in tropical regions.\u003c/p\u003e\n"]]],["The WHRC provides a dataset of above-ground live woody biomass density for tropical countries, captured on January 29, 2012, at a 500-meter pixel resolution. The data, derived from field measurements, LiDAR, and MODIS imagery, is available through Google Earth Engine using the `ee.Image(\"WHRC/biomass/tropical\")` snippet. Users are allowed to use the dataset for scientific, conservation, and educational purposes while providing feedbacks on errors. The dataset is measured in Megagrams per hectare (Mg/ha) with values from 0 to 503.\n"],null,["# WHRC Pantropical National Level Carbon Stock Dataset\n\nDataset Availability\n: 2012-01-29T00:00:00Z--2012-01-29T00:00:00Z\n\nDataset Provider\n:\n\n\n [WHRC](https://www.woodwellclimate.org/)\n\nTags\n:\n [aboveground](/earth-engine/datasets/tags/aboveground) [biomass](/earth-engine/datasets/tags/biomass) [carbon](/earth-engine/datasets/tags/carbon) [forest-biomass](/earth-engine/datasets/tags/forest-biomass) [geophysical](/earth-engine/datasets/tags/geophysical) [umd](/earth-engine/datasets/tags/umd) \n pantropical \n tropical \nwhrc \n\n#### Description\n\nA national-level map of above-ground live woody biomass density for\ntropical countries at 500m. This dataset was assembled from a combination\nof co-located field measurements, LiDAR observations, and imagery recorded\nfrom the Moderate Resolution Imaging Spectroradiometer (MODIS).\n\n### Bands\n\n\n**Pixel Size**\n\n500 meters\n\n**Bands**\n\n| Name | Units | Min | Max | Pixel Size | Description |\n|------|-------|-----|-------|------------|---------------------------------------------------------|\n| `Mg` | Mg/ha | 0\\* | 503\\* | meters | Megagrams of aboveground live woody biomass per Hectare |\n\n\\* estimated min or max value\n\n### Terms of Use\n\n**Terms of Use**\n\n- The national level dataset is freely available for use for scientific, conservation, and educational purposes.\n- Users acknowledge that they themselves are responsible for determining whether the dataset is of sufficient quality and appropriateness for their objectives.\n- Users agree that they will make reasonable efforts to provide appropriate feedbacks and notification of any significant errors that they identify in the dataset.\n\n### Citations\n\nCitations:\n\n- A. Baccini, S J. Goetz, W.S. Walker, N. T. Laporte, M. Sun, D.\n Sulla-Menashe, J. Hackler, P.S.A. Beck, R. Dubayah, M.A. Friedl, S. Samanta\n and R. A. Houghton. Estimated carbon dioxide emissions from tropical\n deforestation improved by carbon-density maps. 2012 Nature Climate Change,\n [doi:10.1038/NCLIMATE1354](https://doi.org/10.1038/NCLIMATE1354)\n\n### Explore with Earth Engine\n\n| **Important:** Earth Engine is a platform for petabyte-scale scientific analysis and visualization of geospatial datasets, both for public benefit and for business and government users. Earth Engine is free to use for research, education, and nonprofit use. To get started, please [register for Earth Engine access.](https://console.cloud.google.com/earth-engine)\n\n### Code Editor (JavaScript)\n\n```javascript\nvar dataset = ee.Image('WHRC/biomass/tropical');\n// Show results only over land.\nvar landMask = ee.Image('NOAA/NGDC/ETOPO1').select('bedrock').gt(0);\nvar liveWoodyBiomass = dataset.updateMask(landMask);\n\nvar visParams = {\n min: 0,\n max: 350,\n palette: [\n 'ffffff', 'ce7e45', 'df923d', 'f1b555', 'fcd163', '99b718', '74a901',\n '66a000', '529400', '3e8601', '207401', '056201', '004c00', '023b01',\n '012e01', '011d01', '011301'\n ],\n};\nMap.addLayer(\n liveWoodyBiomass, visParams, 'Aboveground Live Woody Biomass (Mg/ha)');\n\nMap.setCenter(-69.4, 0.3, 3);\nMap.setOptions('SATELLITE');\n```\n[Open in Code Editor](https://code.earthengine.google.com/?scriptPath=Examples:Datasets/WHRC/WHRC_biomass_tropical) \n[WHRC Pantropical National Level Carbon Stock Dataset](/earth-engine/datasets/catalog/WHRC_biomass_tropical) \nA national-level map of above-ground live woody biomass density for tropical countries at 500m. This dataset was assembled from a combination of co-located field measurements, LiDAR observations, and imagery recorded from the Moderate Resolution Imaging Spectroradiometer (MODIS). \nWHRC/biomass/tropical, aboveground,biomass,carbon,forest-biomass,geophysical,umd \n2012-01-29T00:00:00Z/2012-01-29T00:00:00Z \n-90 -180 90 180 \nGoogle Earth Engine \nhttps://developers.google.com/earth-engine/datasets\n\n- [](https://doi.org/https://www.woodwellclimate.org/)\n- [](https://doi.org/https://developers.google.com/earth-engine/datasets/catalog/WHRC_biomass_tropical)"]]
