A new Digital Earth reference model: spheroid-based 3D grid for Earth system (3DGES)

@inproceedings{Wu2010AND,
  title={A new Digital Earth reference model: spheroid-based 3D grid for Earth system (3DGES)},
  author={Lixin Wu and Jieqing Yu},
  booktitle={International Symposium on Digital Earth},
  year={2010}
}
Being tightly related with map projection, planar mode cannot represent meso-scale and large-scale objects spanning projection zones and spheres, because map projection causes problems of with data fissure, geometry deformation and metric inaccuracy. Though Global Discrete Grid data model can solve these problems, it is only confined to the surface, it can not reach to the inside and outside of the surface. However, Spheoid Degenerated Octree Grid (SDOG) extend the extent to the whole spheroid… 
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8 Citations

3D integrated representation model and visualization based on the global discrete voxel—GeoSOT3D
TLDR
A new global discrete voxel called GeoSOT3D, which is the abbreviation of Geographical coordinates Subdivision grid with One dimension integral coding on 2n-Tree for space, is proposed, which can seamlessly fit the global space.
RAPID VISUALIZATION OF GLOBAL IMAGE AND DEM BASED ON SDOG-ESSG
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Methods of layers and blocks data organization, as well as data culling, Level of Detail (LOD), and asynchronous scheduling, were adopted in this article to improve the efficiency of visualization of SDOG-ESSG.
An SDOG-based intrinsic method for three-dimensional modelling of large-scale spatial objects
TLDR
Spheroid Degenerated-Octree Grid (SDOG), which takes the advantages of non-shrinking, quasi-uniform, non-overlapping, latitude–longitude consistent, hexahedron-shaped, uniformly subdivided, multi-resolution, is a preferable grid for developing an intrinsic method for the 3D modelling of large-scale spatial objects.
SDOG-based multi-scale 3D modeling and visualization on global lithosphere
The structure of global lithosphere is very important to the scientific researches of tectonic movement, geodynamic process, mantle convection, resource exploration, and disaster prevention and…
SDOG-based multi-scale 3D modeling and visualization on global lithosphere
The structure of global lithosphere is very important to the scientific researches of tectonic movement, geodynamic process, mantle convection, resource exploration, and disaster prevention and…
Grid-based representation and dynamic visualization of ionospheric tomography
Abstract. The ionosphere is a dynamic system with complex structures. With the development of abundant global navigation satellite systems, the ionospheric electron density in different altitudes and…
Managing the Global Dataset in Block-index based on ESSG
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The objection of this paper is to provide an effective spatial data organization and indexing method, which organizes triple units into block and encodes for each triples block and converts multi-source global scale datasets into triple block so as to manage massive raster data at global scale.
A Situation Visualization System Based on 2D&3D Electronic Sand Table
  • Qin Li, Haimin Liu, Zhenyu Wu
  • Computer Science
    2018 IEEE 3rd Advanced Information Technology, Electronic and Automation Control Conference (IAEAC)
  • 2018
The situation visualization had acted an important prop of judging the situation and determining the decision, in order to improve the ability of scene show and Human-Computer Interaction (HCI), a…

References

SHOWING 1-9 OF 9 REFERENCES
Spatial subdivision and coding of a global three-dimensional grid: Spheoid Degenerated-Octree Grid
  • Yu Jie-qing, Wu Li-xin
  • Computer Science
    2009 IEEE International Geoscience and Remote Sensing Symposium
  • 2009
TLDR
It is revealed that SDOG is a 3D grid with properties of global continuity, multi-hierarchy, similar shape and approximate size, and can serve well for global spatial data organizing and representing; SDZ andMDZ are high performance coding methods, and MDZ is a nicer choice for SDOG coding.
Implementation of an Equal-area Gridding Method for Global-scale Image Archiving
Constructing global-scale image databases is a challenging task because of large data volume and various map distortions. The raster pixel data structure on a projected flat surface has been used…
Ellipsoidal quadtrees for indexing of global geographical data
TLDR
In contrast to other global indexing methods, EQT is based on the Earth ellipsoid and not a spherical approximation, which makes it possible to divide the Earth surface into a mesh of quadrangles with equal areas and can be used for indexing databases of various sizes, including national and global databases.
Rendering and managing spherical data with sphere quadtrees
  • F. Gyorgy
  • Computer Science
    Proceedings of the First IEEE Conference on Visualization: Visualization `90
  • 1990
The sphere quadtree (SQT), which is based on the recursive subdivision of spherical triangles obtained by projecting the faces of an icosahedron onto a sphere, is discussed. Most databases for…
A Hierarchical Coordinate System for Geoprocessing and Cartography
TLDR
This research focuses on the computational aspects of a quaternary triangular mesh and its application to map generalization.
Tessellation and Distortion Analysis Based on Spherical DQG
TLDR
The experiment results show that the DQG has not only simple geometrical structure, but stableGeometrical distortion as well.
A System of Domains for Global Sampling Problems
A system based on the regular dodecahedron for dividing the Earth's surface into domains of equal area and almost the same shape is described. The domains are pseudotriangular, their shape close to...
Application of global grids in environmental sampling,
  • Computing Science and Statistics,
  • 1998
A ID-coding method containing quadrant label for non-boundary 3DGIS
  • Proc. Of joint ISPRS commission workshop on dynamic and multi-dimensional GIS. Beijing, 105-108 (1990).
  • 1990