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Long-term forecasting (weeks, months, years) Many solar resource forecasting methodologies were proposed since the 1970 and most authors agree that different forecast horizons require different methodologies. Forecast horizons below 1 hour typically require ground based sky imagery and sophisticated time series and machine learning models.
The "icosahedral" portion describes the model's most uncommon feature: whereas most grid-based forecast models have historically used rectangular grid points (a less than ideal arrangement for a planet that is a slightly oblate spheroid), the FIM instead fits Earth to a Goldberg polyhedron with icosahedral symmetry, with twelve evenly spaced ...
The ensemble has to be wide-ranging to ensure it covers the whole range where the climate models may be good. Measuring what is a good model is difficult. This may need to consider not only errors in the observation but also in the model. Any prior assumptions about distribution can influence the probability distribution function produced.
The MM5 (short for Fifth-Generation Penn State/NCAR Mesoscale Model) is a regional mesoscale model used for creating weather forecasts and climate projections. It is a community model maintained by Penn State University and the National Center for Atmospheric Research .
The Climate Forecast System or coupled forecast system (CFS) is a medium to long range numerical weather prediction and a climate model run by the National Centers for Environmental Prediction (NCEP) to bridge weather and climate timescales. [1] Version 2 became operational as CFSv2 in 2011. [2]
In the week preceding the event, ECMWF high-resolution forecast models were "remarkably consistent" in the forecast of a very deep low-pressure system in the Bellingshausen Sea. Minimum pressures were generally in the range of 895–910 mbar (26.4–26.9 inHg). [1]
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The Reading Intermediate General Circulation Model (IGCM), is a simplified or "intermediate" Global climate model, which is developed by members of the Department of Meteorology [permanent dead link] at the University of Reading, and by members of the Stratospheric Dynamics and Chemistry Group of the Department of Atmospheric and Oceanic Sciences at McGill University.