Vortex erosion and amalgamation in a new model of large scale flow on the sphere
Journal of Computational Physics
The spectral element method for the shallow water equations on the sphere
Journal of Computational Physics
New icosahedral grid-point discretizations of the shallow water equations on the sphere
Journal of Computational Physics
Double Fourier series on a sphere: applications to elliptic and vorticity equations
Journal of Computational Physics
Application of double Fourier series to the shallow-water equations on a sphere
Journal of Computational Physics
Shallow water model on a modified icosahedral geodesic grid by using spring dynamics
Journal of Computational Physics
An optimization of the Icosahedral grid modified by spring dynamics
Journal of Computational Physics
Journal of Computational Physics
Journal of Computational Physics
Journal of Computational Physics
Numerical wave propagation on the hexagonal C-grid
Journal of Computational Physics
On numerical realizability of thermal convection
Journal of Computational Physics
Numerical representation of geostrophic modes on arbitrarily structured C-grids
Journal of Computational Physics
Journal of Computational Physics
An edge-based unstructured mesh discretisation in geospherical framework
Journal of Computational Physics
Numerical wave propagation for the triangular P1DG-P2 finite element pair
Journal of Computational Physics
MCore: A non-hydrostatic atmospheric dynamical core utilizing high-order finite-volume methods
Journal of Computational Physics
Mixed finite elements for numerical weather prediction
Journal of Computational Physics
Journal of Computational Physics
Analysis of grid imprinting on geodesic spherical icosahedral grids
Journal of Computational Physics
Multi-GPU implementation of the NICAM atmospheric model
Euro-Par'12 Proceedings of the 18th international conference on Parallel processing workshops
Simulations of moist convection by a variational multiscale stabilized finite element method
Journal of Computational Physics
Improved smoothness and homogeneity of icosahedral grids using the spring dynamics method
Journal of Computational Physics
Journal of Computational Physics
Hi-index | 31.51 |
A new type of ultra-high resolution atmospheric global circulation model is developed. The new model is designed to perform ''cloud resolving simulations'' by directly calculating deep convection and meso-scale circulations, which play key roles not only in the tropical circulations but in the global circulations of the atmosphere. Since cores of deep convection have a few km in horizontal size, they have not directly been resolved by existing atmospheric general circulation models (AGCMs). In order to drastically enhance horizontal resolution, a new framework of a global atmospheric model is required; we adopted nonhydrostatic governing equations and icosahedral grids to the new model, and call it Nonhydrostatic ICosahedral Atmospheric Model (NICAM). In this article, we review governing equations and numerical techniques employed, and present the results from the unique 3.5-km mesh global experiments-with O(10^9) computational nodes-using realistic topography and land/ocean surface thermal forcing. The results show realistic behaviors of multi-scale convective systems in the tropics, which have not been captured by AGCMs. We also argue future perspective of the roles of the new model in the next generation atmospheric sciences.