Catalogue de données

Digital Earth Africa héberge un référentiel de données d’observation de la Terre couvrant l’Afrique continentale.

Images satellites

Réflexion de la surface

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Réflectance de surface de la collection Landsat 2 niveau 2

Daily satellite images from Landsat 5, 7, 8 and 9.

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Réflectance de la surface Sentinel-2 Niveau-2A

Images satellites quotidiennes de Sentinel-2.

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Composites GeoMAD sans nuages

Mosaïques sans nuages des satellites Landsat et Sentinel-2.

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Température de surface

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Température de surface du niveau 2 de la collection Landsat

Surface Temperature from Landsat 5, 7, 8 and 9.

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Rétrodiffusion radar

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Sentinel-1 Normalised Radar Backscatter

Radar à ouverture synthétique de Sentinel-1.

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Mosaïque annuelle du SAR ALOS PALSAR, ALOS-2 PALSAR-2 et JERS-1

Mosaïques annuelles du radar à ouverture synthétique de la JAXA.

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Terre et eau

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Observations de l’eau depuis l’espace

Observations individuelles, annuelles et historiques de l’eau.

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Cartes de l’étendue des terres cultivées en Afrique

Localisation estimée des terres cultivées.

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Couverture fractionnée

Végétation verte, végétation non verte et sol nu pour chaque image Landsat.

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Normalised Difference Vegetation Index (NDVI) Climatology

Long-term average vegetation condition (NDVI) for every Landsat pixel over the African continent.

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Monthly Normalised Difference Vegetation Index (NDVI) Anomaly

Monthly mapping of vegetation condition against the long-term baseline.

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Rainfall estimates (CHIRPS)

Daily and monthly rainfall estimates from rain gauge and satellite observations.

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Copernicus Global Land Service Global Land Cover at 100m spatial resolution

Copernicus Global Land Service annual land cover layers at 100 m spatial resolution.

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ESRI Global Land Use Land Cover

ESRI 10-meter resolution global land use land cover time series.

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ESA WorldCover

ESA WorldCover global land cover map at 10 m resolution.

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ESA Climate Change Initiative Land Cover at 300m spatial resolution

ESA Climate Change Initiative Land Cover at 300 m resolution.

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Global Mangrove Watch

Global Mangrove Watch global baseline map of mangroves for 2010 and change maps for 1996, 2007, 2008, 2009, 2015 and 2016.

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DE Africa Waterbodies: A Waterbodies Monitoring Service

A continental collection of African water bodies locations and surface area change at a 30m resolution from 1987 to present.

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World Settlement Footprint

The World Settlement Footprint WSF is a 10m-resolution binary mask outlining the extent of human settlements globally for the years 2015 and 2019 based on multiple datasets, and the World Settlement Footprint Evolution shows the annual growth of human settlements globally at 30m-resolution.

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Coastal

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DE Africa Coastlines: A Coastline Monitoring Service

Annual shorelines and rates of coastal change along the entire African coastline at a 30 m resolution from 2000 to 2021.

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Elevation

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Copernicus DEM (COP-DEM)

Corpenicus Digital Elevation Model with limited worldwide coverage at 30 metres and global coverage at 90 metres spatial resolution.

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Shuttle Radar Topography Mission (SRTM) 1 Arc-Second Global Digital Elevation Model and DEM Derivatives

NASA version 3.0 Shuttle Radar Topography Mission (SRTM) global 1 arc second (~30 metre) DEM and Digital Earth Africa SRTM DEM Derivatives.

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External Datasets

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ERA5 Climate Gridded Data

ERA5 global climate reanalysis product by the Copernicus Climate Change Service (C3S) at the ECMWF.

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Global Root-zone moisture Analysis & Forecasting System (GRAFS)

Global Root-zone moisture Analysis & Forecasting System (GRAFS) by the ANU Centre for Water and Landscape Dynamics.

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About the data

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Landsat Collection 2 tiers

How Landsat Collection 2 data tiers are used in Digital Earth Africa.

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Si vous avez des commentaires sur les données et les services de DE Africa, veuillez nous contacter à l’adresse helpdesk@digitalearthafrica.org.