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	Quick Search Author Title Abstract Nr. Schedule Nr. Nonlinear Processes in Geophysics Empirical modelling in geophysics Scale, scaling and nonlinear variability in geosciences Chaos and nonlinear time series analysis Predictability Turbulence, Diffusion and Nonlinear Waves Programme Groups Great Debates Union Symposia Educational Symposia Atmospheric Sciences Biogeosciences Climate: Past, Present, Future Cryospheric Sciences Energy, Resources and the Environment Geochemistry, Mineralogy, Petrology & Volcanology Geodesy Geodynamics Geomorphology Geophysical Instrumentation Hydrological Sciences Magnetism, Palaeomagnetism, Rock Physics & Geomaterials Natural Hazards Nonlinear Processes in Geophysics Ocean Sciences Planetary and Solar System Sciences Seismology Soil System Sciences Solar-Terrestrial Sciences Stratigraphy, Sedimentology and Palaeontology Tectonics and Structural Geology Medal Lectures Key Note Lectures Key Note Sessions Division Business Meetings Editorial Board Meetings Townhall Meetings Splinter Meetings Union Meetings   Information - NP5.03 Model errors Event Information Besides their sensitivity to initial conditions, geophysical prediction systems often exhibit highly non-linear sensitivities to model error that can lead to important consequences in terms of the predictability of a system. Models such as weather, ocean and climate prediction systems are based on numerical discretizations that imply a limit for the temporal and spatial scales below which physical processes cannot be resolved by the model. Due to the non-linearity of geophysical systems, the unresolved small scales can have a fundamental influence over the large scales. Since there is no way of explicitly knowing in detail what happens at the sub-grid scales, the impact of the physical processes at these scales has to be parameterized as a function of the resolved fields. In this session, we invite papers on issues associated with model error in general and the sensitivity of geophysical prediction systems to model error. Studies on the errors associated with the parameterization of subgrid scale processes, as well as those associated with the formulation and temporal and spatial discretization of the dynamical core, are welcome. Studies of the interaction between parameterizations and the predictability of a system (low order, intermediate or operational models), particularly those involving stochastic approaches, are especially encouraged. Preliminary List of Solicited Speakers Co-Sponsorship General Statement The information contained hereafter has been compiled and uploaded by the Session Organizers via the "Organizer Session Form". The Session Organizers have therefore the sole responsibility that this information is true and accurate at the date of publication, and the conference organizer cannot accept any legal responsibility for any errors or omissions that may be made, and he makes no warranty, expressed or implied, with regard to the material published. Back to Session Programme

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