\begin{table}%t2 \par \caption{\label{tab:SF}Rise times for stationary flow simulations. } %\centering \par \begin{tabular}{c c c c c} \hline\hline & & $\varv_{\rm max}$ = --50~m~s$^{-1}$ & & \\ \hline & & & $\tau_{\rm rise}$ (days) & \\ $\lambda_0$ (deg) & $B_0$ ($10^4$~G) &$\sigma_{\phi,\theta}=2^\circ$ & $\sigma_{\phi,\theta}=5^\circ$ & $\sigma_{\phi,\theta}=10^\circ$ \\ 0 & 1 & stable & stable & stable \\ 0 & 3 & stable & stable & stable \\ 0 & 5 & 723 & 492 & 397 \\ 0 & 6 & 920 & 324 & 259 \\ 0 & 7 & 445 & 269 & 207 \\ {\it 0} & {\it 10} & 662 & 700 & 191 \\ 10 & 5 & 661 & 464 & 369 \\ 10 & 7 & 439 & 265 & 204 \\ 30 & 7 & 1791 & 268 & 192 \\ 40 & 4 & stable & 2516 & 1364 \\ \hline & & $\varv_{\rm max}$ = --10~m~s$^{-1}$ & & \\ & & & $\tau_{\rm rise}$ (days)& \\ $\lambda_0$ (deg) & $B_0$ (T) &$\sigma_{r,\theta}=2^\circ$ & $\sigma_{r,\theta}=5^\circ$ & $\sigma_{r,\theta}=10^\circ$ \\ 0 & 5 & stable & stable & stable \\ 0 & 7 & stable & stable & stable \\ {\it 0} & {\it 10} & 659 ($m=1$) & 608 & 567 \\ {\it 0} & {\it 12} & 147 ($m=2$) & 140 & 136 \\ 10 & 7 & stable & stable & stable \\ 30 & 7 & stable & stable & 4167 \\ \hline \end{tabular} \end{table}