Changes between Version 2 and Version 3 of ticket/0665_mass_heat_salt_fluxes


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Timestamp:
2010-04-29T08:22:53+02:00 (11 years ago)
Author:
gm
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  • ticket/0665_mass_heat_salt_fluxes

    v2 v3  
    1515Revisit the formulation of the fluxes between ocean, ice and atmosphere : an exchange of water (mass exchange) is now explicitly associated with an exchange of heat and salt content. This modification simplifies the implementation of a fully embedded sea-ice. 
    1616 
     17This update is the NOCS.4 task (Revisit of mass and salt fluxes) due by 2nd July 2010 
     18 
     19 
    1720The main modifications concern OPA, LIM2 and LIM3. They are: 
    1821 
    19    (1) the introduction in LIM2 and LIM3 of the heat and salt content exchanged with the ocean 
     22'''(1) heat content of Freezing/Melting ice'''.  
     23   In both LIM2 and LIM3, the computation of the heat content of F/M ice is added. 
    2024 
    21    (2) the suppression of emps by introducing fsalt, the salt flux at the ocean surface (only non zero below sea-ice) 
     25   '''LIM2''' : the modules involved in the change are .... 
    2226 
    23    (3) the modification of the definition of qns : the non solar part of the surface heat flux takes now also into account the heat content changes due to the change in volume associated with evaporation, precipitation, ice freezing and ice melting. 
     27   '''LIM3''' : the modules involved in the change are .... 
    2428 
    25    (4) the modification of trasbc module in order to take into account the above changes 
    2629 
    27 This update is the NOCS.4 task (Revisit of mass and salt fluxes) due by 2nd July 2010 
     30'''(2) introduction of a explicit a salt flux'''  
     31 
     32   the emps field is suppress by introducing fsalt, the salt flux at the ocean surface (only non zero below sea-ice) 
     33 
     34   iin case of linear free surface (no key_vvl defined), the salt flux take into account the concentration/dilution term 
     35 
     36 
     37'''(3) Non-solar flux including the heat content of mass exchanges''' 
     38 
     39   the definition of qns is modified as follows: the non solar part of the surface heat flux takes now also into account the heat content changes due to the change in volume associated with evaporation, precipitation, ice freezing and ice melting. 
     40 
     41 
     42'''(4) Update ocean and ice forcing''' 
     43 
     44   the modification of trasbc and limsbc modules in order to take into account the above changes (heat content of water exchanges and explicit salt flux) 
     45 
     46 
     47'''N.B.''' 
     48   • Philosophical change: in near future it appears that the use of key_vvl should be replaced by key_linssh. In other words, the defaut option of NEMO will be a non-linear free surface (and thus variable volume for the model levels). This has to be discussed prior to its implementation. 
    2849 
    2950----