AWS Public Sector Blog

Tag: satellites

How African leaders use open data to fight deforestation and illegal mining

In Africa, scientific data is critical to helping the nation’s leaders tackle issues like water scarcity and climate change. A collaboration between nonprofit Digital Earth Africa (DE Africa) and the Amazon Sustainability Data Initiative (ASDI) is helping them access the data they need. DE Africa operates a free and user-friendly Earth observation (EO) data service that provides African policymakers with insights into a range of challenges, from natural resource management to the impacts of climate change. The service has already helped Ghanaian officials identify and tackle illegal mining, and provided decision-ready insights on flooding and drought in Tanzania and Nigeria.

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Keeping a SpatioTemporal Asset Catalog (STAC) Up To Date with SNS/SQS

The SpatioTemporal Asset Catalog (STAC) specification aims to standardize the way geospatial assets are exposed online and queried. The China-Brazil Earth Resources Satellites (CBERS) are the result of a cooperation agreement between Brazilian and Chinese space agencies (INPE and CAST, respectively), which started in 1988. Since then, five satellites were launched (CBERS-1/2/2A/3/4). The mission generates images from Earth with characteristics similar to USGS’ Landsat and ESA’s Sentinel-2 missions. In 2004, INPE announced that all CBERS-2 images would be available at no charge to the public. It was the first time this distribution model was used for medium-resolution satellite imagery. Now, this model is used for all CBERS satellite images.

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