Abstract: Kinetic energy spectra derived from observations in the free atmosphere possess a wavenumber dependence of k?3 for large scales, characteristic of 2D turbulence, and transition to a k?5/3 dependence in the mesoscale. Kinetic ...

Abstract: General positive-definite and monotonic limiters are described for use with unrestricted-Courant-number flux-form transport schemes. These limiters are tested using a time-split multidimensional transport scheme. The ...

Abstract: The NCAR Community Climate System Model (CCSM) finite-volume atmospheric core uses a C?D-grid discretization to solve the equations of motion. A linear analysis of this discretization shows that it behaves as a D grid to ...

Abstract: The finite-volume transport scheme of Miura, for icosahedral?hexagonal meshes on the sphere, is extended by using higher-order reconstructions of the transported scalar within the formulation. The use of second- and ...

Abstract: An assessment of a recently developed (by Miura) second-order numerical advection scheme for icosahedral-hexagonal grids on the sphere is presented, and the effects of monotonic limiters that can be used with the scheme ...

Abstract: igher-order finite-volume flux operators for transport algorithms used within Runge?Kutta time integration schemes on irregular Voronoi (hexagonal) meshes are proposed and tested. These operators are generalizations of ...

Abstract: s an alternative to traditional precipitation analysis and forecast verification, 1D and 2D spectral decompositions of NCEP/Stage IV and Multi-Radar Multi-Sensor (MRMS) precipitation products and convective-scale model ...

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 ...

Abstract: A nonhydrostatic numerical model is used to simulate two-dimensional frontogenesis forced by either horizontal deformation or shear. Both inviscid frontogenesis prior to frontal collapse and frontogenesis with horizontal ...

Abstract: Using a primitive equation (PE) model, we revisit two canonical flows that were previously studied using a semigeostrophic equation (SG) model. In a previous paper, the authors showed that the PE and the SG models can have ...