Abstract: A dynamical core of a general circulation model with the spectral method using double Fourier series (DFS) as basis functions is presented. The model uses the hydrostatic balance approximation and sigma coordinate system ...

Abstract: The 5-day wave has been detected in composite maps of geopotential height fields of European Centre for Medium-Range Weather Forecasts dataset for 7 years (1984?91, except 1985) and shows a characteristic northwest?southeast ...

Abstract: The composite analysis of the 10-day and 16-day waves, the observational counterparts of the second antisymmetric and symmetric rotational Hough mode with the zonal wavenumber 1, respectively, were performed as an extension ...

Abstract: A tropical cyclone initialization method with an idealized three-dimensional bogus vortex of an analytic empirical formula is presented for the track and intensity prediction. The procedure in the new method consists of ...

Abstract: AbstractA high-order filter for a cubed-sphere spectral element model was implemented in a three-dimensional spectral element dry hydrostatic dynamical core. The dynamical core incorporated hybrid sigma?pressure vertical ...

Abstract: high-order spectral filter for the spherical-surface limited-area domain, either window or sector type, is presented, where the window domain is finite both in longitude and latitude and the sector domain is finite in ...

Abstract: he Fourier finite-element method (FFEM) on the sphere, which performs with an operation count of O(N2 log2N) for 2N ? N grids in spherical coordinates, was developed using linear basis functions. Dependent field variables ...

Abstract: his study describes an application of the double Fourier series (DFS) spectral method developed by Cheong as an alternative dynamical option in a model system that was ported into the Global/Regional Integrated Model System ...