New URL for NEMO forge!   http://forge.nemo-ocean.eu

Since March 2022 along with NEMO 4.2 release, the code development moved to a self-hosted GitLab.
This present forge is now archived and remained online for history.
ticket/1611_is_oce_cpl (diff) – NEMO

Changes between Version 21 and Version 22 of ticket/1611_is_oce_cpl


Ignore:
Timestamp:
2015-10-21T18:36:41+02:00 (9 years ago)
Author:
mathiot
Comment:

--

Legend:

Unmodified
Added
Removed
Modified
  • ticket/1611_is_oce_cpl

    v21 v22  
    1717==== Limitation ==== 
    1818 * It is not suitable if high frequency coupling is needed. Because the model need to be stop each time you want to couple ocean/ice sheet. 
    19  * It not a conservative method (NEMO is creating/losing volume/mass/salt/heat at the coupling time step if the geometry change). I.e., under a pure dynamics ice sheet advance, your mean ssh will stay constant. An option has been added to reduce the unbalance to 0 after a certain amount of time step (ie we apply the total correction over X time step).  
     19 * It not a conservative method (NEMO is creating/losing volume/mass/salt/heat at the coupling time step if the geometry change). I.e., under a pure dynamics ice sheet advance, your mean ssh will stay constant. An option has been added to reduce the unbalance to 0 after a certain amount of time step (ie we apply the total correction over X time step), however, this option could be unstable (EXP3 ISOMIP+ very unstable with this option, EXP4 run 10 years without any issues).  
    2020 
    2121==== Method ==== 
     
    6060 
    6161||NVTK Tested||'''YES'''|| 
    62 ||Other model configurations||'''ISOMIP+ EXP 2 and 3'''|| 
    63 ||Processor configurations tested||[ Enter processor configs tested here ]|| 
     62||Other model configurations||'''ISOMIP+ EXP 3 and 4'''|| 
     63||Processor configurations tested|| 8x4 and 4x8 || 
    6464||If adding new functionality please confirm that the [[BR]]New code doesn't change results when it is switched off [[BR]]and !''works!'' when switched on||'''YES'''|| 
    6565 
     
    7272 
    7373=== Bit Comparability === 
    74 ||Does this change preserve answers in your tested standard configurations (to the last bit) ?||'''YES (ISOMIP+ EXP4'''|| 
     74||Does this change preserve answers in your tested standard configurations (to the last bit) ?||'''YES (ISOMIP+ EXP3 and EXP4'''|| 
    7575||Does this change bit compare across various processor configurations. (1xM, Nx1 and MxN are recommended)||'''YES (8x4 and 4x8)'''|| 
    7676||Is this change expected to preserve answers in all possible model configurations?||'''YES'''||