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Changeset 4147 for branches/2013/dev_LOCEAN_2013/DOC/TexFiles/Chapters/Chap_TRA.tex – NEMO

Ignore:
Timestamp:
2013-11-04T12:51:55+01:00 (10 years ago)
Author:
cetlod
Message:

merge in dev_LOCEAN_2013, the 1st development branch dev_r3853_CNRS9_Confsetting, from its starting point ( r3853 ) on the trunk: see ticket #1169

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1 edited

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  • branches/2013/dev_LOCEAN_2013/DOC/TexFiles/Chapters/Chap_TRA.tex

    r3764 r4147  
    11% ================================================================ 
    2 % Chapter 1 Ñ Ocean Tracers (TRA) 
     2% Chapter 1 Ocean Tracers (TRA) 
    33% ================================================================ 
    44\chapter{Ocean Tracers (TRA)} 
     
    137137\textit{effective} velocity ($i.e.$ the sum of the eulerian and eiv velocities) which is used. 
    138138 
    139 The choice of an advection scheme is made in the \textit{nam\_traadv} namelist, by  
     139The choice of an advection scheme is made in the \textit{\ngn{nam\_traadv}} namelist, by  
    140140setting to \textit{true} one and only one of the logicals \textit{ln\_traadv\_xxx}. The  
    141141corresponding code can be found in the \textit{traadv\_xxx.F90} module, where  
     
    441441%------------------------------------------------------------------------------------------------------------- 
    442442  
     443Options are defined through the  \ngn{namtra\_ldf} namelist variables. 
    443444The options available for lateral diffusion are a laplacian (rotated or not)  
    444445or a biharmonic operator, the latter being more scale-selective (more  
     
    602603%-------------------------------------------------------------------------------------------------------------- 
    603604 
     605Options are defined through the  \ngn{namzdf} namelist variables. 
    604606The formulation of the vertical subgrid scale tracer physics is the same  
    605607for all the vertical coordinates, and is based on a laplacian operator.  
     
    757759%-------------------------------------------------------------------------------------------------------------- 
    758760 
     761Options are defined through the  \ngn{namtra\_qsr} namelist variables. 
    759762When the penetrative solar radiation option is used (\np{ln\_flxqsr}=true),  
    760763the solar radiation penetrates the top few tens of meters of the ocean. If it is not used  
     
    879882Bottom Water) by a few Sverdrups  \citep{Emile-Geay_Madec_OS09}.  
    880883 
     884Options are defined through the  \ngn{namtra\_bbc} namelist variables. 
    881885The presence of geothermal heating is controlled by setting the namelist  
    882886parameter  \np{ln\_trabbc} to true. Then, when \np{nn\_geoflx} is set to 1,  
     
    897901%-------------------------------------------------------------------------------------------------------------- 
    898902 
     903Options are defined through the  \ngn{nambbl} namelist variables. 
    899904In a $z$-coordinate configuration, the bottom topography is represented by a  
    900905series of discrete steps. This is not adequate to represent gravity driven  
     
    10661071where $\gamma$ is the inverse of a time scale, and $T_o$ and $S_o$  
    10671072are given temperature and salinity fields (usually a climatology).  
     1073Options are defined through the  \ngn{namtra\_dmp} namelist variables. 
    10681074The restoring term is added when the namelist parameter \np{ln\_tradmp} is set to true.  
    10691075It also requires that both \np{ln\_tsd\_init} and \np{ln\_tsd\_tradmp} are set to true 
     
    11281134%-------------------------------------------------------------------------------------------------------------- 
    11291135 
     1136Options are defined through the  \ngn{namdom} namelist variables. 
    11301137The general framework for tracer time stepping is a modified leap-frog scheme  
    11311138\citep{Leclair_Madec_OM09}, $i.e.$ a three level centred time scheme associated  
     
    12051212\citep{Gill1982}. 
    12061213 
     1214Options are defined through the  \ngn{nameos} namelist variables. 
    12071215The default option (namelist parameter \np{nn\_eos}=0) is the \citet{JackMcD1995}  
    12081216equation of state. Its use is highly recommended. However, for process studies,  
     
    12221230coefficients, and $\rho_o$, the reference volumic mass, $rau0$.  
    12231231($\alpha$ and $\beta$ can be modified through the \np{rn\_alpha} and  
    1224 \np{rn\_beta} namelist parameters). Note that when $d_a$ is a function  
     1232\np{rn\_beta} namelist variables). Note that when $d_a$ is a function  
    12251233of $T$ only (\np{nn\_eos}=1), the salinity is a passive tracer and can be  
    12261234used as such. 
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