A latitude–longitude grid is used by almost all operational atmospheric forecast models, and
many research models. However, it is expected that the advantages of a latitude–longitude …

Abstract All atmospheric General Circulation Models (GCMs) need some form of dissipation,
either explicitly specified or inherent in the chosen numerical schemes for the spatial and …

This report presents the details of the governing equations, physical parameterizations, and
numerical algorithms defining the version of the NCAR Community Atmosphere Model …

The Community Atmosphere Model (CAM) version 5 includes a spectral element dynamical
core option from NCAR's High-Order Method Modeling Environment. It is a continuous …

When radial basis functions (RBFs) are made increasingly flat, the interpolation error
typically decreases steadily until some point when Runge-type oscillations either halt or …

We derive a formulation of the spectral element method which is compatible on very general
unstructured three-dimensional grids. Here compatible means that the method retains …

This paper presents a third-order and fourth-order finite-volume method for solving the
shallow-water equations on a non-orthogonal equiangular cubed-sphere grid. Such a grid is …

Radial basis function (RBF) approximations have been used for some time to interpolate
data on a sphere (as well as on many other types of domains). Their ability to solve, to …

HPC systems are notorious for operating at a small fraction of their peak performance, and
the ongoing migration to multi-core and multi-socket compute nodes further complicates …

Numerical weather prediction (NWP) is in a period of transition. As resolutions increase,
global models are moving towards fully nonhydrostatic dynamical cores, with the local and …