Abstract: A discrete form of the flux-divergence operator is developed to compute advection of tracers on spherical hexagonal?pentagonal grids. An upwind-biased advection scheme based on a piecewise linear approximation for ...

Abstract: Fourth-order-centered operators on regular hexagonal grids with the ZM-grid arrangement are described. The finite-volume method is used and operators are defined at hexagonal cell centers. The gradient operator is calculated ...

Abstract: AbstractA shallow-water model using the hexagonal synchronized B grid (SB grid) is developed on the spherical icosahedral grid. The SB grid adopts the same variable arrangement as the ZM grid, but does not suffer from a ...

Abstract: standard nominally third-order upwind-biased spatial discretization of the flux-divergence operator was extended to a spherical icosahedral grid. The method can be used with multistage time-stepping schemes such as the ...

Abstract: Construction and optimization methods of spherical hexagonal?pentagonal geodesic grids are investigated. The objective is to compare grid structures on common ground. The distinction between two types of hexagonal?pentagonal ...

Abstract: AbstractAn environment favorable for the development of the Madden?Julian oscillation (MJO) was investigated by classifying MJO-like atmospheric patterns as MJO and regionally confined convective (RCC) events. Comparison ...

Abstract: everal transport schemes developed for spherical icosahedral grids are based on the piecewise linear approximation. The simplest one among them uses an algorithm where the tracer distribution in the upwind side of a cell ...