DDE OneGroundwater



DDE’s OneGroundwater is a platform for integrating and sharing groundwater data around the world. Based on the knowledge graph, it focuses on the integration, management, display, and intelligent retrieval of global hydrogeological data, which consists of massive, multi-source heterogeneous spatial-temporal datasets. These data provide crucial support for both the sustainable management of groundwater and deep hydrogeological processes research. At present, accessibility and cataloging of global groundwater data are insufficient. Large amounts of hydrogeological information are scattered in numerous documents in different formats, and simultaneously, very limited data on the properties and migration characteristics of deep groundwater can be found.

OneGroundwater’s aim is to utilize the techniques of knowledge extraction and graph data organization for the automatic acquisition of hydrogeological information in literature databases, and for the construction of the hydrogeology knowledge graph. OneGroundwater is capable of storing and managing the acquired multi-source heterogeneous groundwater data with a knowledge-based, intelligent retrieval function in a real-time service computing framework.

Groundwater data can be uploaded, managed, and displayed as hydrogeological maps on the OneGroundwater platform. Data on the platform include hydrochemistry and isotope groundwater data. By using OneGroundwater and digital GIS hydrogeology maps for 38 countries in Africa together with a digital Africa-wide geology map and available hydrogeological and geological information, a distribution map of aquifer types for Africa can be produced at a nominal scale of 1:5 million.

Distribution map of aquifer types in Africa



Data Sources: 38 digital hydrogeology maps available from the British Geological Survey (https://www.bgs.ac.uk/research/groundwater/international/africanGroundwater/maps.html); the digital Africa-wide geology map is provided by the DDE Global Layer work group.


The OneGroundwater platform is accessible here: