Numerical forecasting

NUMERICAL FORECASTING
The use of numerical models, such as the fundamental equations of hydrodynamics subjected to observed initial conditions, to forecast the weather.

Numerical Forecasting Forecasting the weather through digital computations carried out by supercomputers.

Numerical Forecasting
A computer forecast or prediction based on equations governing the motions and the forces affecting motion of fluids.

Numerical forecasting method
The numerical weather prediction or NWP[17] method uses computers to take into account a large number of variables and creates a computer model of the atmosphere.

numerical forecasting—See numerical weather prediction.
numerical weather prediction—Forecasting by digital computers solving mathematical equations; used extensively in weather services throughout the world.
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Browse Related Terms: analog, CPC, ESP, General Circulation Models, HPC, Numerical Forecasting, Numerical Weather Prediction, NWP, Office of Global Programs, Persistence, Prognostic Discussion, SPC, SWODY1
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Models can be based on subjective heuristic methods, statistics (see statistical dynamical model, model output statistics), numerical methods (see numerical forecasting), simplified physical systems (see dishpan experiments), analogy (see analogs), ...

As a meteorological example, kriging can be used for two-dimensional spatial interpolation of irregularly spaced observational data onto a uniform set of grid points to provide input for a numerical forecasting model.

See also: Forecast, Meteor, Wind, Air, Force