Breaking Earth Observation Data Barriers Across Southern Africa

Imagine trying to manage water resources for millions of people without an accurate view of the ​ water levels in dams. Or attempting to plan national food security strategies while blind to the health of your croplands. For decades, this was the reality for many decision-makers across Africa. Africa is one of the most observed landmasses on Earth, yet local institutions can struggle to access and use this data effectively. While satellites have captured terabytes of valuable data daily over many years, the barriers to accessing and using this information were often insurmountable. Dr. Lisa-Maria Rebelo, lead scientist at Digital Earth Africa, explains, “For too long, the abundance of satellite data over Africa remained just that—abundant, yet inaccessible for most people who could put it to best use. Our mission is to turn those data streams into practical, actionable intelligence for African institutions and communities.” High costs, slow internet connections, and the need for supercomputers to process raw imagery meant that Earth Observation (EO) data remained a niche tool, locked away in academic silos or expensive private servers. Now, that is changing. Through the power of the Open Data Cube (ODC) and the continental scale of Digital Earth Africa (DE Africa), a data revolution is underway—democratising access to space-based insights across Africa. The challenge: Data rich, information poor Traditional satellite imagery requires massive processing power to correct for atmospheric interference, cloud cover, and geometric distortions. For a government agency in Zambia or a research institute in Namibia, downloading petabytes of raw data was simply not feasible. Digital Earth Africa addresses this by leveraging the Open Data Cube (ODC) architecture. The ODC organizes data into a multidimensional grid—a "cube" of data pixels that are consistent in space and time—while providing analysis-ready data (ARD). This means the heavy lifting of pre-processing is...