The Integrated Forecasting System (IFS) is a numerical weather prediction model developed by the European Centre for Medium-Range Weather Forecasts (ECMWF). It serves as the primary model used for weather forecasting and climate analysis at ECMWF. The IFS integrates various components of the Earth’s atmosphere, land surface, and ocean to provide forecasts over medium to long ranges, typically from a few days up to several weeks ahead.
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