This dataset provides a continent-wide, raster-based spatial representation of groundwater resources across Africa for the year 2011, modeled under a historical baseline climate scenario. It is designed to support researchers, policymakers, and practitioners in mapping water availability, understanding baseline hydrogeological conditions, and assessing the intersection of natural water resources with climate and energy planning.

This layer was extracted from the Africa Groundwater Atlas of the British Geological Survey (BGS) in collaboration with the International Association of Hydrogeologists (IAH). The Atlas provides the expert continent-scale evidence base—including aquifer type, productivity, and groundwater status across 51 African countries—that makes robust spatial modeling of this kind possible.

This layer is part of the Geothermal Atlas for Africa developed within the LEAP-RE project

Based on the Geothermal Atlas for Africa , the temperature models at 1 km, 2 km, 3 km, and 4 km depth are part of a 3D conductive thermal model of the African lithosphere.

These layers can be described as follows:

• Model Basis: The layers are derived from a 3D grid with a vertical resolution of 250 meters down to 15 km, constructed using a lithosphere-scale conductive mode. This model incorporates sediment thickness, heat flow, crustal structure, and the depth of the Lithosphere-Asthenosphere Boundary (LAB).
• Calibration: The models are calibrated using a dataset of 923 filtered temperature observations from the British Geological Survey, which were averaged per model grid cell to improve data assimilation.
• Environmental Adjustments:
  • Surface Reference: The ETOPO surface level is used as the top reference level.
  • Magmatic Areas: Magmatic areas have been treated as loci of elevated heat production at a depth range of 3 to 8 km, resulting in temperatures exceeding 200°C at 2 km depth.
• Application: These depth-specific temperature grids serve as primary inputs for assessing the technical performance of geothermal production scenarios across Africa, including direct heating, chilling, and power production (ORC).