NEDAS.models.lorenz84 package

class NEDAS.models.lorenz84.Lorenz84Model(**kwargs)[source]

Bases: OdeModel

The Lorenz (1984) model of the general circulation, 3 variables: the strength of the westerly wind (x) and the cosine and sine phases of a superposed large-scale eddy (y, z).

As in DART models/lorenz_84 and DAPPER mods/Lorenz84.

Parameters:

  • a (float) – damping and displacement of the eddies by the westerly current

  • b (float) – damping and displacement of the eddies by the westerly current

  • F (float) – the thermal forcings of the westerly current and of the eddies

  • G (float) – the thermal forcings of the westerly current and of the eddies

a: float
b: float
F: float
G: float
property state_size: int

length of the state vector

x0() → ndarray[source]

a reference state, perturbed and spun up to start the truth and the ensemble

dxdt(x: ndarray) → ndarray[source]

the time derivative of the state (for an ODE stepped by step)

Submodules