Changeset 2570 for trunk/DOC/TexFiles/Chapters/Introduction.tex
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- 2011-01-27T15:32:46+01:00 (13 years ago)
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trunk/DOC/TexFiles/Chapters/Introduction.tex
r2541 r2570 144 144 145 145 $\bullet$ The main modifications from OPA v8 and NEMO/OPA v3.2 are :\\ 146 (1) transition to full native \textsc{Fortran} 90, deep code restructuring and drastic 147 reduction of CPP keys; \\ 148 (2) introduction of partial step representation of bottom topography \citep{Barnier_al_OD06, Le_Sommer_al_OM09, Penduff_al_OS07}; \\ 149 (3) partial reactivation of a terrain-following vertical coordinate ($s$- and hybrid $s$-$z$) 146 \begin{enumerate} 147 \item transition to full native \textsc{Fortran} 90, deep code restructuring and drastic 148 reduction of CPP keys; 149 \item introduction of partial step representation of bottom topography \citep{Barnier_al_OD06, Le_Sommer_al_OM09, Penduff_al_OS07}; 150 \item partial reactivation of a terrain-following vertical coordinate ($s$- and hybrid $s$-$z$) 150 151 with the addition of several options for pressure gradient computation \footnote{Partial 151 152 support of $s$-coordinate: there is presently no support for neutral physics in $s$- 152 153 coordinate and for the new options for horizontal pressure gradient computation with 153 a non-linear equation of state.}; \\154 (4) more choices for the treatment of the free surface: full explicit, split-explicit or filtered schemes. \\ 155 (5) suppression of the rigid-lid option;\\ 156 (6) non linear free surface option (associated with the rescaled height coordinate157 \textit{z*} or \textit{s} ); \\158 (6) additional schemes for vector and flux forms of the momentum advection; \\ 159 (7) additional advection schemes for tracers; \\ 160 (8) implementation of the AGRIF package (Adaptative Grid Refinement in \textsc{Fortran}) \citep{Debreu_al_CG2008}; \\ 161 (9) online diagnostics : tracers trend in the mixed layer and vorticity balance; \\ 162 (10) rewriting of the I/O management with the use of an I/O server; \\ 163 (11) generalized ocean-ice-atmosphere-CO2 coupling interface, interfaced with OASIS 3 coupler. \\ 164 (12)surface module (SBC) that simplify the way the ocean is forced and include two165 bulk formulea (CLIO and CORE) and which includes an on-the-fly interpolation of input forcing fields \\166 (13)RGB light penetration and optional use of ocean color167 (14)major changes in the TKE schemes: it now includes a Langmuir cell parameterization \citep{Axell_JGR02},154 a non-linear equation of state.}; 155 \item more choices for the treatment of the free surface: full explicit, split-explicit or filtered 156 schemes, and suppression of the rigid-lid option; 157 \item non linear free surface associated with the rescaled height coordinate 158 \textit{z*} or \textit{s}; 159 \item additional schemes for vector and flux forms of the momentum advection; 160 \item additional advection schemes for tracers; 161 \item implementation of the AGRIF package (Adaptative Grid Refinement in \textsc{Fortran}) \citep{Debreu_al_CG2008}; 162 \item online diagnostics : tracers trend in the mixed layer and vorticity balance; 163 \item rewriting of the I/O management with the use of an I/O server; 164 \item generalized ocean-ice-atmosphere-CO2 coupling interface, interfaced with OASIS 3 coupler ; 165 \item surface module (SBC) that simplify the way the ocean is forced and include two 166 bulk formulea (CLIO and CORE) and which includes an on-the-fly interpolation of input forcing fields ; 167 \item RGB light penetration and optional use of ocean color 168 \item major changes in the TKE schemes: it now includes a Langmuir cell parameterization \citep{Axell_JGR02}, 168 169 the \citet{Mellor_Blumberg_JPO04} surface wave breaking parameterization, and has a time discretization 169 which is energetically consistent with the ocean model equations \citep{Burchard_OM02, Marsaleix_al_OM08}; \\170 (15) tidal mixing parametrisation (bottom intensification) + Indonesian specific tidal mixing \citep{Koch-Larrouy_al_GRL07}; \\ 171 (16)introduction of LIM-3, the new Louvain-la-Neuve sea-ice model (C-grid rheology and170 which is energetically consistent with the ocean model equations \citep{Burchard_OM02, Marsaleix_al_OM08}; 171 \item tidal mixing parametrisation (bottom intensification) + Indonesian specific tidal mixing \citep{Koch-Larrouy_al_GRL07}; 172 \item introduction of LIM-3, the new Louvain-la-Neuve sea-ice model (C-grid rheology and 172 173 new thermodynamics including bulk ice salinity) \citep{Vancoppenolle_al_OM09a, Vancoppenolle_al_OM09b} 174 \end{enumerate} 173 175 174 176 \vspace{1cm} 175 177 $\bullet$ The main modifications from NEMO/OPA v3.2 and v3.3 are :\\ 176 (1) introduction of a modified leapfrog-Asselin filter time stepping scheme \citep{Leclair_Madec_OM09}; \\ 177 (2) additional scheme for iso-neutral mixing \citep{Griffies_al_JPO98}, although it is still a "work in progress"; \\ 178 (3) a rewriting of the bottom boundary layer scheme, following \citet{Campin_Goosse_Tel99}; \\ 179 (4) addition of a Generic Length Scale vertical mixing scheme, following \citet{Umlauf_Burchard_JMS03}; 180 (5) addition of the atmospheric pressure as an external forcing on both ocean and sea-ice dynamics; \\ 181 (6) addition of a diurnal cycle on solar radiation \citep{Bernie_al_CD07}; \\ 182 (7) river runoffs added through a non-zero depth, and having its own temperature and salinity; \\ 183 (8) CORE II normal year forcing set as the default forcing of ORCA2-LIM configuration ; \\ 184 (9) generalisation of the use of \mdl{fldread} for all input fields (ocean, climatology, sea-ice damping...) 185 (10) addition of an on-line observation and model comparison (thanks to NEMOVAR project); \\ 186 (11) optional application of an assimilation increment (thanks to NEMOVAR project); \\ 187 (12) coupling interface adjusted for WRF atmospheric model 188 (13) C-grid ice rheology now available fro both LIM-2 and LIM-3 \citep{Bouillon_al_OM09}; \\ 189 (14) a deep re-writting and simplification of the off-line tracer component (OFF\_SRC) ; \\ 190 (15) the merge of passive and active advection and diffusion modules \\ 191 (16) Use of the Flexible Configuration Manager (FCM) to build configurations, generate the Makefile and produce the executable ; \\ 192 (17) Linear-tangent and Adjoint component (TAM) added, phased with v3.0 193 178 \begin{enumerate} 179 \item introduction of a modified leapfrog-Asselin filter time stepping scheme \citep{Leclair_Madec_OM09}; 180 \item additional scheme for iso-neutral mixing \citep{Griffies_al_JPO98}, although it is still a "work in progress"; 181 \item a rewriting of the bottom boundary layer scheme, following \citet{Campin_Goosse_Tel99}; 182 \item addition of a Generic Length Scale vertical mixing scheme, following \citet{Umlauf_Burchard_JMS03}; 183 \item addition of the atmospheric pressure as an external forcing on both ocean and sea-ice dynamics; 184 \item addition of a diurnal cycle on solar radiation \citep{Bernie_al_CD07}; 185 \item river runoffs added through a non-zero depth, and having its own temperature and salinity; 186 \item CORE II normal year forcing set as the default forcing of ORCA2-LIM configuration ; 187 \item generalisation of the use of \mdl{fldread} for all input fields (ocean climatology, sea-ice damping...) ; 188 \item addition of an on-line observation and model comparison (thanks to NEMOVAR project); 189 \item optional application of an assimilation increment (thanks to NEMOVAR project); 190 \item coupling interface adjusted for WRF atmospheric model; 191 \item C-grid ice rheology now available fro both LIM-2 and LIM-3 \citep{Bouillon_al_OM09}; 192 \item LIM-3 ice-ocean momentum coupling applied to LIM-2 ; 193 \item a deep re-writting and simplification of the off-line tracer component (OFF\_SRC) ; 194 \item the merge of passive and active advection and diffusion modules ; 195 \item Use of the Flexible Configuration Manager (FCM) to build configurations, generate the Makefile and produce the executable ; 196 \item Linear-tangent and Adjoint component (TAM) added, phased with v3.0 197 \end{enumerate} 194 198 \vspace{1cm} 195 199 In addition, several minor modifications in the coding have been introduced with the constant
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