What is a model of numeric prediction?
A model of numeric prediction, is a program of computer that produces the weather forecast for the future. The global model is that, which includes all the earth, o regional, that they cover only a part of the earth. Regional models are also known as models of limited areas.
The forecasts are calculated using the mathematical equations for the physics and the dynamics of the atmosphere. These equations are not linear and are impossible to resolve|solve with accuracy. Therefore, the numeric methods of obtain approximate solutions. Different models give different solutions.
The models are initialized using the datum observed of radiosondes, weather satellites, and the weather observations of surface. The assimilation of observations irregularly spaced they are processed and the values in the usable places pass through a quality quality control to obtain for mathematical algorithms of the model (generally a grid uniformly spacing). The datum is afterwards used in the model as a starting point for a prediction. Commonly, the set of equations that are used is known like the primitive equations. These equations it starts from the analysis of datum. The length of the step of weather correlates with the distance between the points of the net of calculation. Intervals of time for the climatic models global can be of the order of tens of minutes, while intervals of time for the regional models can be a few as at a few minutes.
The models can see themselves in different pages, in a free way. How they are CEAMET(es), MeteoCiel(fr), Wetterzentrale(ge), MeteoRed(es), o MeteoSim(cat) entre altres.
GFS: Model of prediction for all the planet, which in the case of Europe has four updates per day, so every six hours it updates with the name of GFS Europe. He is one models that it models in short, medium, as well as in the long term until the 384 hr. The model this processed by the American aviation. Month used and with but your guaranteeing is the model, the one that in concrete situations as retro flight of steps situations there is better models.
ECMWF: Model of prediction for Europe, one alone gone out on the day that it|he|she is free in|on the net has. This model alone models in the medium term, so sun has this function, but it goes very well in retro flight of steps situations. The model this processed by an association of 23 European states. He is the month model used by the services of weather European and for many Weather of the television, how it is the case of TV3.
DWD: Model of prediction for Europe, has one alone gone out on the day. The model this processed by the German weather service. Sun models in the short term until the 72 hr.
MASS: Model of prediction located in the European west, has one alone gone out on the day. This model alone models in in the short term, but it goes very well in situations of DANAs or small depressions. The model this processed by Meteosim SL.
UKMO: Model of prediction for Europe, has two exits to the day. This model alone models, even the 72 hr, in the short term. The model this processed by the British Weather Service.
JMA-Europe: Model of prediction for Europe, has one alone gone out on the day. The model this processed by Japan. It models even the 192 hr.
GEM: Model of prediction for Europe, has one alone gone out on the day. The model this processed by Japan. It models even the 192 hr.
HIRLAM: Model of prediction for Europe occidental, the Atlàntic and Àfrica occidental. It has two exits to the day that they are free in the net. The model this processed by the AEmeT (Spanish). It models even the 72 hr. Efficient model for situations with DANAs.
