10 Nakamura Y, Shibutani T. Three-dimensional shear wave velocity structure in the upper mantle beneath the Philippine Sea region. Earth Planets Space, 1998, 50: 939–952
[9]
11 Zhao D P. Global tomographic images of mantle plumes and subducting slabs: Insight into deep earth dynamics. Phys Earth Planet Inter, 2004, 146: 3–34？？
[10]
12 Shapio N M, Ritzwoller M H. Thermodynamic constraints on seismic inversions. Geophys J Int, 2004, 157: 1175–1188？？
[11]
13 An M J, Shi Y L. Lithospheric thickness of the Chinese continent. Phys Earth Planet Inter, 2006, 159: 257–266？？
19 Yu J, Wu L. Spatial subdivision and coding of a global three-dimensional grid: Spheroid degenerated-octree grid. In: 2009 IEEE International Geoscience & Remote Sensing Symposium, IEEE, 2009. II-361-II-364
22 Bassin C, Laske G, Masters G. The current limits of resolution for surface wave tomography in North America. EOS Trans AGU, 2000, 81: F897
[21]
23 Ronchi C, Iacono R, Paolucci P S. The ‘Cubed Sphere’: A new method for the solution of partial differential equations in spherical geometry. J Comput Phys, 1996, 124: 93–114？？
[22]
24 Kageyama A, Sato T. The “Yin-Yang Grid”: An overset grid in spherical geometry. Geochem Geophys Geosyst, 2004, 5: 1–15
[23]
25 Ohno N, Kageyama K. Visualization of spherical data by Yin-Yang grid. Comput Phys Commun, 2009, 180: 1534–1538？？
[24]
26 Kageyama A. Dissection of a sphere and Yin-Yang grids. J Earth Simulator, 2005, 3: 20–28
[25]
27 Kageyama A, Yoshida M. Geodynamo and mantle convection simulations on the Earth Simulator using the Yin-Yang grid. J Phys- Conference Ser, 2006, 16: 325–338
[26]
28 Ballard S, James R H, Christopher J Y. Efficient and accurate calculation of ray theory seismic travel time through variable resolution 3D Earth Models. Seismol Res Lett, 2009, 80: 989–999？？
[27]
29 Choblet G. Modeling thermal convection with large viscosity gradients in one block of the ‘Cubed Sphere’. J Comput Phys, 2005, 205: 269–291？？
[28]
30 Harder H, Hansen U. A Finite-volume solution method of thermal convection and dynamo problems in spherical shells. Geophys J Int, 2005, 161: 522–532？？
[29]
31 Stemmer K, Harder H, Hansen U. A new method to simulate convection with strongly temperature-and pressure-dependent viscosity in a spherical shell: Applications to the Earth’s mantle. Phys Earth Planet Inter, 2006, 157: 223–249？？
[30]
32 Georg S, Michael G, Carsten B, et al. The dynamics of plate tectonics and mantle flow: From local to global scales. Science, 2010, 329: 1033–1037？？
34 Wu L, Yu J. A new digital Earth reference model: Spheroid-based 3d grid for Earth system (3DGES). In: Guo H, Wang C, eds. 6th International Symposium on Digital Earth: Models, Algorithms, and Virtual Reality. Beijing, China: Proc. SPIE, 2009
37 Goodchild M F. Scale in GIS: An overview. Geomorphology, 2011, 130: 5–9？？
[36]
38 Ruas A. Multiple paradigms for automating map generalization: Geometry, topology, hierarchical partitioning and local triangulation. ACSM/ASPRS Ann Conversion Exposition, 1995, 4: 69–78
[37]
39 Nafaa J, Boubaker B, Bernard M. Using Multiagent Systems to Improve Real-Time Map Generation. Adv Artificial Intelligence, 2006, doi: 10.1007/11766247_4
