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branches/DEV_r1826_DOC/DOC/TexFiles/Chapters/Chap_LBC.tex
r1224 r1831 18 18 \label{LBC_coast} 19 19 %--------------------------------------------nam_lbc------------------------------------------------------- 20 \namdisplay{nam _lbc}20 \namdisplay{namlbc} 21 21 %-------------------------------------------------------------------------------------------------------------- 22 22 … … 134 134 spectacular improvements have not been found in the half-degree global ocean 135 135 (ORCA05), but significant reductions of numerically induced coastal upwellings were 136 found in an eddy resolving simulation of the Alboran Sea \citep{Olivier Ph2001}.136 found in an eddy resolving simulation of the Alboran Sea \citep{Olivier_PhD01}. 137 137 Nevertheless, since a no-slip boundary condition is not recommended in an eddy 138 permitting or resolving simulation \citep{Penduff 2007}, the use of this option is also138 permitting or resolving simulation \citep{Penduff_al_OS07}, the use of this option is also 139 139 not recommended. 140 140 … … 428 428 of the domain, for example at Gibraltar Straits if one wants to avoid including 429 429 the Mediterranean in an Atlantic domain. This flexibility has been found necessary 430 for the CLIPPER project \citep{Treguier 2001}. Because of the complexity of the430 for the CLIPPER project \citep{Treguier_al_JGR01}. Because of the complexity of the 431 431 geometry of ocean basins, it may even be necessary to have more than one 432 432 ''west'' open boundary, more than one ''north'', etc. This is not possible with … … 529 529 530 530 When ocean observations are used to generate the boundary data (a hydrographic 531 section for example, as in \citet{Treguier 2001}) it happens often that only the velocity531 section for example, as in \citet{Treguier_al_JGR01}) it happens often that only the velocity 532 532 normal to the boundary is known, which is the reason why the initial OBC code 533 533 assumes that only $T$, $S$, and the normal velocity ($u$ or $v$) needs to be … … 548 548 remain in NEMO v2.3. Users should read the code carefully before using it. Finally, 549 549 in the case of the rigid lid approximation the barotropic streamfunction must be 550 provided, as documented in \citet{Treguier 2001}). This option is no longer550 provided, as documented in \citet{Treguier_al_JGR01}). This option is no longer 551 551 recommended but remains in NEMO V2.3. 552 552 … … 623 623 $s$-coordinate model on an Arakawa C-grid. Although the algorithm has 624 624 been numerically successful in the CLIPPER Atlantic models, the physics 625 do not work as expected \citep{Treguier 2001}. Users are invited to consider625 do not work as expected \citep{Treguier_al_JGR01}. Users are invited to consider 626 626 open boundary conditions (OBC hereafter) with some scepticism 627 627 \citep{Durran2001, Blayo2005}. … … 637 637 C_{\phi y} = \frac{ -\phi_{t} }{ ( \phi_{x}^{2} + \phi_{y}^{2}) } \phi_{y}. 638 638 \end{equation} 639 Following \citet{Treguier 2001} and \citet{Marchesiello2001} we retain only639 Following \citet{Treguier_al_JGR01} and \citet{Marchesiello2001} we retain only 640 640 the normal component of the velocity, $C_{\phi x}$, setting $C_{\phi y} =0$ 641 641 (but unlike the original Orlanski radiation algorithm we retain $\phi_{y}$ in … … 672 672 numerical stability. 673 673 674 In the case of a western boundary located in the Eastern Atlantic, \citet{Penduff 2000}674 In the case of a western boundary located in the Eastern Atlantic, \citet{Penduff_al_JGR00} 675 675 have been able to implement the radiation algorithm without any boundary data, 676 676 using persistence from the previous time step instead. This solution has not worked 677 in other cases \citep{Treguier 2001}, so that the use of boundary data is recommended.677 in other cases \citep{Treguier_al_JGR01}, so that the use of boundary data is recommended. 678 678 Even in the outflow condition (\ref{Eq_obc_rado}), we have found it desirable to 679 679 maintain a weak relaxation to climatology. The time step is usually chosen so as to
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