Discrete Global Grid Systems and Geospatial Data Processing
Summary
Discrete Global Grid Systems (DGGS) establish a hierarchical, equal-area partitioning of the Earth’s surface into discrete cells, each bearing a unique identifier. By replacing traditional latitude-longitude meshes with regularly tessellated grids—often hexagonal, triangular or quadtree-based—DGGS enable consistent multi-resolution analysis, efficient storage and seamless data integration across scales. In geospatial data processing, DGGS underpin a range of workflows: from ingestion of satellite imagery and in-situ measurements to spatial indexing, overlay operations and statistical aggregation. Their regular topology supports rapid neighbourhood queries, automated resampling and parallel computation, thereby facilitating applications in environmental monitoring, urban planning, climate modelling and disaster response. Complementary advances in remote-sensing preprocessing, three-dimensional surface reconstruction and database acceleration have further enhanced the capacity to generate, manage and analyse vast geospatial data sets within DGGS frameworks. This convergence of grid methodology and computational geoinformatics promises a unified foundation for digital-earth representations, enabling interoperable tools and consistent global analyses.
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Discrete Global Grid Systems and Geospatial Data Processing publication trend
The graph below shows the total number of articles in discrete global grid systems and geospatial data processing across all publications each year (not limited to Nature Index journals).
Technical terms
Discrete Global Grid System (DGGS): A hierarchical framework dividing the planetary surface into equal-area, uniquely identified cells.
Hierarchical tessellation: Recursive subdivision of grid cells into finer, self-similar elements enabling multi-resolution analysis.
Authalic latitude: A latitude measure on an ellipsoid adjusted to preserve area when projecting spherical grids to the ellipsoid.
Cell identifier: A code assigned to each DGGS cell, encoding its location and level within the hierarchy.
Equal-area cell: A grid cell whose surface area is identical to that of all other cells at the same resolution level.
References
- Non-square grids: A new trend in imaging and modeling?. Computer Science Review (2025).
- Enhancing Authalic Latitude Calculation for the rHEALPix DGGS. IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing (2025).
- An integrated environmental analytics system (IDEAS) based on a DGGS. ISPRS Journal of Photogrammetry and Remote Sensing (2020).
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