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Changeset 6396 for branches/2015/nemo_v3_6_STABLE/DOC/TexFiles/Chapters/Chap_DYN.tex – NEMO

Ignore:
Timestamp:
2016-03-18T14:56:37+01:00 (8 years ago)
Author:
mathiot
Message:

Modification of the ISF documentation based on the comments from N. Jourdain

File:
1 edited

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  • branches/2015/nemo_v3_6_STABLE/DOC/TexFiles/Chapters/Chap_DYN.tex

    r6317 r6396  
    655655\label{DYN_hpg_isf} 
    656656Beneath an ice shelf, the total pressure gradient is the sum of the pressure gradient due to the ice shelf load and 
    657  the pressure gradient due to the ocean load. If cavity opened (\np{ln\_isfcav}~=~true) these 2 terms can be 
    658  calculated by setting \np{ln\_dynhpg\_isf}~=~true. No other scheme are working with the ice shelf.\\ 
    659  
    660 $\bullet$ The main hypothesis to compute the ice shelf load is that the ice shelf is in an isostatic equilibrium. 
    661  The top pressure is computed integrating from surface to the base of the ice shelf a reference density profile  
    662 (prescribed as density of a water at 34.4 PSU and -1.9$\degres C$) and corresponds to the water replaced by the ice shelf.  
    663 This top pressure is constant over time. A detailed description of this method is described in \citet{Losch2008}.\\ 
     657 the pressure gradient due to the ocean load. If cavities are present (\np{ln\_isfcav}~=~true) these two terms can be 
     658 calculated by setting \np{ln\_dynhpg\_isf}~=~true. No other scheme is working with ice shelves.\\ 
     659 
     660$\bullet$ The main hypothesis to compute the ice shelf load is that the ice shelf is in isostatic equilibrium. 
     661 The top pressure is computed integrating a reference density profile (prescribed as density of a water at 34.4  
     662PSU and -1.9$\degres C$) from the sea surface to the ice shelf base, which corresponds to the load of the water 
     663column in which the ice shelf is floatting. This top pressure is constant over time. A detailed description of  
     664this method is described in \citet{Losch2008}.\\ 
    664665 
    665666$\bullet$ The ocean load is computed using the expression \eqref{Eq_dynhpg_sco} described in \ref{DYN_hpg_sco}.  
    666 A treatment of the partial cell for top and bottom similar to the one described in \ref{DYN_hpg_zps} is done  
     667A treatment of the top and bottom partial cells similar to the one described in \ref{DYN_hpg_zps} is done  
    667668to reduce the residual circulation generated by the top partial cell.  
    668669 
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