oocgcm.core.grids.generic_2d_grid.frontogenesis_function

generic_2d_grid.frontogenesis_function(velocity, buoyancy)

Return the frontogenesis function.

Parameters:

velocityfield : VectorField2d

namedtuple of horisontal velocity at u,v grid locations

buoyancy : xarray.DataArray

xarray of buoyancy at grid_location=’t’

Returns:

result : xarray.DataArray

Frontogenesis function at at t location.

Notes

Definition of the frontogenesis function (following [R7])

\[F_s = \mathbf{Q}_{kd} \cdot \nabla_h b\]

References

[R7]	(1, 2) Hoskins, B.J., Bretherton, F.P., 1972. Atmospheric Frontogenesis Models: Mathematical Formulation and Solution. J. Atmos. Sci. 29, 11-37.