Erratum to: Ocean Dynamics (2015) 65:1761–1778

DOI 10.1007/s10236-015-0894-y

The original version of this article unfortunately contained a mistake. The first three lines on page 1778 should be corrected as follows: where U 1 and U 2 are the first and second columns of U, s = [s 1s 2]T, and ψ 1 and ψ 2 are defined by:

$$ \begin{array}{cc}\hfill {\boldsymbol{\uppsi}}_{\mathbf{1}}=\left[\begin{array}{c}\hfill {\psi_1}^{(0)}\hfill \\ {}\hfill {\psi_1}^{(1)}\hfill \end{array}\right],\hfill & \hfill {\boldsymbol{\uppsi}}_{\mathbf{2}}=\left[\begin{array}{c}\hfill {\psi_2}^{(0)}\hfill \\ {}\hfill {\psi_2}^{(1)}\hfill \end{array}\right].\hfill \end{array} $$
(C8)