Encoding and operation scheme for the rhombic triacontahedron aperture 4 hexagonal discrete global grid system

Ding, Junjie; Huang, Xinhai; Ben, Jin; Zhou, Jianbin; Liang, Qishuang; Chen, Yihang; Dai, Jinchi

doi:10.1080/17538947.2024.2316112

International Journal of Digital Earth

2024

DOI: 10.1080/17538947.2024.2316112

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Encoding and operation scheme for the rhombic triacontahedron aperture 4 hexagonal discrete global grid system

Junjie Ding,

Xinhai Huang,

Jin Ben

et al.

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Cited by 2 publications

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Non-square grids: A new trend in imaging and modeling?

Magillo

2025

Computer Science Review

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Non-square grids: A new trend in imaging and modeling?

Magillo

2025

Computer Science Review

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Regional-Scale Equidistance Optimizing Method Considering the Equidistance Patterns of Discrete Global Grid Systems

Luo,

Wang,

et al. 2024

IJGI

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The Discrete Global Grid System (DGGS) provides a foundational framework for the digital Earth, where uniform intercell distances are essential for accurate numerical simulations. However, due to the spherical topology, achieving strictly equidistant spherical grid cells is impractical. Most existing studies have focused on regional scales, which are constrained by data acquisition limitations and render global equidistant optimization algorithms economically infeasible. The equidistant characteristics of cells are influenced by map projections and often exhibit regional variations. In this paper, we analyze these equidistant characteristics and construct an equidistant pattern for an icosahedral hexagonal DGGS. By integrating this pattern into the icosahedral orientation method, we develop a regional-scale equidistant optimization method for DGGS. Experiments on river network extraction in the Yangtze River Basin demonstrate significant improvements: the equidistance of grid cells covering the region increased by over 34.2%, while the accuracy of river network extraction improved by 51.41%. Moreover, this method is extensible to other grid models, enhancing the broader applicability of DGGS.

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Encoding and operation scheme for the rhombic triacontahedron aperture 4 hexagonal discrete global grid system

Cited by 2 publications

References 30 publications

Non-square grids: A new trend in imaging and modeling?

Non-square grids: A new trend in imaging and modeling?

Regional-Scale Equidistance Optimizing Method Considering the Equidistance Patterns of Discrete Global Grid Systems

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