Results 11 to 20 of about 48,284 (242)
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
doaj +3 more sources
On the isolatitude property of the rHEALPix Discrete Global Grid System [PDF]
Big Earth Data, 2019 Digital Earth frameworks provide a way to integrate, analyze, and visualize large volumes of geospatial data, and the foundation of such frameworks is the Discrete Global Grid System (DGGS).
David Bowater, Emmanuel Stefanakis
doaj +3 more sources
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
doaj +2 more sources
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
doaj +2 more sources
A Three-Dimensional Buffer Analysis Method Based on the 3D Discrete Global Grid System
ISPRS International Journal of Geo-Information, 2021 Three-dimensional (3D) buffer analysis is among the basic functions of 3D spatial analysis, and it plays an important role in 3D geographic information systems.
Jinxin Wang +4 more
doaj +3 more sources
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
doaj +4 more sources
International Journal of Digital Earth, 2020 The foundation of modern Digital Earth frameworks is the Discrete Global Grid System (DGGS). To standardize the DGGS model, the Open Geospatial Consortium (OGC) recently created the DGGS Abstract Specification, which also aims to increase usability and ...
David Bowater, Emmanuel Stefanakis
doaj +2 more sources
Multi-resolution topographic analysis in hexagonal Discrete Global Grid Systems
International Journal of Applied Earth Observation 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 explored their application as data integration platforms.
Mingke Li +2 more
exaly +4 more sources
International Journal of Digital Earth, 2020 The polyhedral discrete global grid system (DGGS) is a multi-resolution discrete earth reference model supporting the fusion and processing of multi-source geospatial information.
Jianbin Zhou +5 more
doaj +2 more sources
ISPRS International Journal of Geo-Information, 2021 Although a Discrete Global Grid (DGG) is uniform in its initial subdivision, its geometric deformation increases with the level of subdivisions. The Goodchild Criteria are often used to evaluate the quality of DGGs.
Zheng Wang +5 more
doaj +3 more sources