Changes between Version 1 and Version 2 of ticket/0663_MLF


Ignore:
Timestamp:
2010-04-21T15:33:04+02:00 (11 years ago)
Author:
gm
Comment:

Legend:

Unmodified
Added
Removed
Modified
  • ticket/0663_MLF

    v1 v2  
    1515Introduce the modified Leap-Frog Robert-Asselin filter to fit the one presented in Leclair and Madec Ocean Modelling (2009). 
    1616 
     17This update is part of the LOCEAN.8 task (Update of the ocean physics) due by June 25th 
     18 
    1719The main remaining modifications concern :  
    1820 
     
    2123(2) Asselin filter: remove the forcing from the filter (dynnxt, tranxt, traqsr) 
    2224 
    23 (3) semi-implicit hydrostatic pressure gradient : change the coefficients to take into account the Asselin filter parameter (tranxt) 
     25(3) tranxt.F90 : semi-implicit hydrostatic pressure gradient : change the coefficients to take into account the Asselin filter parameter 
    2426 
    25 This update is part of the LOCEAN.8 task (Update of the ocean physics) due by June 25th 
     27   time mean T and S for the semi implicit hpg computation is now    rbcp*ta+(2-rbcp)*tn+rbcp*tb  
     28   with rbcp=(1+atfp)*(1+atfp*atfp) / 4, and atfp is the Asselin filter parameter. It used to be (ta+2*tn + tb) / 4. 
    2629 
     30   The effect of the change is to further extend the stability limit of the time stepping scheme when ln_dynhpg_imp = T 
     31 
     32 
     33=== Current missing points === 
     34 
     35(1) and (2) 
    2736 
    2837----