Navy Operational Global Atmospheric Prediction System Model (NOGAPS) is a global numerical weather prediction computer model run by Fleet Numerical. This mathematical model is run four times a day and produces weather forecasts. Along with the ECMWF's Integrated Forecast System (IFS), the Canadian Global Environmental Multiscale Model (GEM) it is one of several synoptic scale medium-range models in general use.
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Navy Operational Global Atmospheric Prediction System Model Wikipedia(Text) CC BY-SA