Abstract: The barotropic vorticity equation in spectral form is integrated for a time period exceeding 80 days in two cases of hypothetical initial conditions with a time step of three hours without appreciable truncation error at ...

Abstract: Three-dimensional structure functions characteristic of atmospheric energy are developed from data samples and presented. The horizontal dependence is based on known functions in spherical surfaces whereas the vertical ...

Abstract: Analysis of hemispheric temperature variance data on five isobaric surfaces in terms of two-dimensional spectral decomposition shows that the available potential energy distributes with a slope in the neighborhood of ?3 ...

Abstract: A simple barotropic model is integrated for 39 days by one-hour time steps over 94 per cent of the earth's surface. By suitably smoothing the stream function at each time step, time truncation errors are controlled and the ...

Abstract: Although it is known that all spatial scales are nonlinearly interrelated in any prediction model of the atmosphere, truncation demands a limit to scale resolution. One is therefore compelled to parameterize sub-resolution ...

Abstract: The National Center for Atmospheric Research Community Climate Model 1 was used as an experimental prediction model to assess the value of reassigning model levels in the vertical based on an optimizing hypothesis. The ...

Abstract: A three-dimensional scale index based on spherical domain and quasigeostrophic scale analysis indicates a truncation limit of global atmospheric models that includes both horizontal and vertical dimensions. Applying such ...

Abstract: No Abstract Available

Abstract: Various normal-mode initialization techniques are applied to a simple 12-level linear model with boundary layer friction, and results are compared to exact solutions of the model. It is found that Machenhauer's initialization ...

Abstract: A quasi-geostrophic, two-level baroclinic model with a fixed heating function and simple friction represented in spectral form was integrated with climatological initial conditions for 30 days. Three separate integrations ...