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Figure 4 | Progress in Earth and Planetary Science

Figure 4

From: The Non-hydrostatic Icosahedral Atmospheric Model: description and development

Figure 4

Arrangements of variables on the hexagonal grid. Arrangements of prognostic variables on the hexagonal grid for the (a) A-grid, (b) B/ZM-grid, (c) C-grid, and (d) Z-grid staggering. The symbols ρ, T, u, v, v , δ, and ζ refer to density, temperature, zonal components, and meridional components of the flow velocity, respectively, that is defined (a) at the center or (b) at the vertex of the hexagon, normal component of the flow velocity on each edge, divergence of the horizontal flow, and vertical component of vorticity.

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