grids.py 文件源码

def norm_of_vectorfield(self,vectorfield):
        """Return the norm of a vector field, at t-point.

        So far, only available for vector fields at u,v grid_location

        Parameters
        ----------
        vectorfield : VectorField2d namedtuple
            so far only valid for vectorfield at u,v-points

        Return
        ------
        scalararray : xarray.DataArray
            xarray with a specified grid_location, so far t-point only
        """
        return xu.sqrt(self.scalar_product(vectorfield,vectorfield))