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1.1 Cell and Transfer equations

In the TEF, a model is mathematically represented by a set of equations corresponding to two kinds objects:

  1. Cells which are elementary models and correspond to evolution equations such as:
    ∂ η(t) = g(η(t),φ(t))
 t

    Vector η represent the state variables of cells and the vector φ represent the dependent boundary conditions, i.e. the variables considered as boundary conditions by a cell, but depending upon the complete model state. This dependent boundary conditions are required to make the cells correspond to well-posed problems. These variables are often called state variables, and prognostic variables in meteorology.

  2. Transfers which are determined by constraint equations such as:
    φ(t) = f (η(t),φ (t))
    These equations are often called algebraic equations, and in meteorology diagnostic equations.

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