solver_nb.lake_solver

solver_nb.lake_solver(x, args, formation=False)

NumbaMinpack version of the lake solver. Solves core.choose_solver.dev_eqn or core.choose_solver.form_eqn, which are defined in the body of get_lake_surface_energy_equations.

Parameters:

• x (array_like, float, dimension(cell.vert_grid_lake)) – Initial estimate of the lake temperature profile. We only use the first element in the solver here (in both the lake formation and lake development cases).

• args (array_like) – Array of input arguments to the solver. See documentation for form_eqn and dev_eqn for details.

• formation (bool) – Flag to determine whether we want the lake formation equation, or the lake development equation. Defaults to the development equation, unless specified.

Returns:

• root (float) – Calculated lake surface temperature, either after successful completion or at the end of the final iteration for an unsuccessful solution. [K]

• fvec (array_like, float, dimension(core.iceshelf_class.IceShelf.vert_grid)) – Vector containing the function evaluated at root, i.e. the raw output.

• success (bool) – Boolean flag determining whether the solution converged, or whether there was an error.

• info (int) – Integer flag containing information on the status of the solution.