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Multi-resolution topographic analysis in hexagonal Discrete Global Grid Systems
International Journal of Applied Earth Observations and Geoinformation, 2022 Discrete Global Grid Systems (DGGS) have been increasingly adopted as a standard framework for multi-source geospatial data. Previous research largely studied the mathematical foundation of discrete global grids, developed open-source libraries, and ...
Mingke Li +2 more
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General Method for Extending Discrete Global Grid Systems to Three Dimensions [PDF]
ISPRS International Journal of Geo-Information, 2020 Geospatial sensors are generating increasing amounts of three-dimensional (3D) data. While Discrete Global Grid Systems (DGGS) are a useful tool for integrating geospatial data, they provide no native support for 3D data.
Benjamin Ulmer +2 more
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A Topology Preserving Gridding Method for Vector Features in Discrete Global Grid Systems [PDF]
ISPRS International Journal of Geo-Information, 2020 Topological distortion seriously affects spatial cognition. To solve this problem caused by the integration of vector features in discrete global grid systems (DGGs), a topology-preserving gridding method for vector features is proposed.
Liangchen Zhou +3 more
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Construction of quality evaluation indicator system for diamond discrete global grid systems
International Journal of Digital Earth, 2023 Although the uniformity of diamond discrete global grid is essential for calculations and searches, geometric deformations increase with the level of divisions.
Fuli Luo +5 more
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Indexing Mixed Aperture Icosahedral Hexagonal Discrete Global Grid Systems [PDF]
ISPRS International Journal of Geo-Information, 2020 Discrete global grid systems (DGGSs) are an emerging multiresolution 3D model used to integrate and analyze big earth data. The characteristic of multiresolution is usually realized by hierarchically subdividing cells on the sphere using certain ...
Rui Wang +3 more
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Construction of rhombic triacontahedron discrete global grid systems
International Journal of Digital Earth, 2022 Discrete Global Grid System (DGGS) is a new multi-resolution geospatial data modeling and processing scheme for the digital earth. The icosahedron is commonly regarded as an ideal polyhedron for constructing DGGSs with small distortions; however, the ...
Xiaoyu Liang +5 more
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GIScience research challenges for realizing discrete global grid systems as a Digital Earth
Big Earth Data, 2022 Increasing data resources are available for documenting and detecting changes in environmental, ecological, and socioeconomic processes. Currently, data are distributed across a wide variety of sources (e.g.
Majid Hojati +3 more
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International Journal of Digital Earth, 2022 Although research on the discrete global grid systems (DGGSs) has become an essential issue in the era of big earth data, there is still a gap between the efficiency of current encoding and operation schemes for hexagonal DGGSs and the needs of practical
Long Zhao +4 more
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Measuring fractal dimension using Discrete Global Grid Systems
Discover GeoscienceFractal dimension has gathered broad interest for application in several geoscientific disciplines. This study presents a modified method for calculating it by a novel implementation of its underlying mathematical theory leading to several practical ...
Pramit Ghosh
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Employing discrete global grid systems for reproducible data obfuscation
Scientific DataArchaeological heritage worldwide is threatened through deliberate destruction in particular site looting making the location of archaeological sites potentially sensitive data.
Gino Caspari +3 more
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