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

Timestamp:

2010-04-21T15:33:04+02:00 (14 years ago)

Author:

gm

Comment:

--

ticket/0663_MLF

@@ -15 +15 @@
 Introduce the modified Leap-Frog Robert-Asselin filter to fit the one presented in Leclair and Madec Ocean Modelling (2009).
 
+This update is part of the LOCEAN.8 task (Update of the ocean physics) due by June 25th
+
 The main remaining modifications concern : 
 
@@ -21 +23 @@
 (2) Asselin filter: remove the forcing from the filter (dynnxt, tranxt, traqsr)
 
-(3) semi-implicit hydrostatic pressure gradient : change the coefficients to take into account the Asselin filter parameter (tranxt)
+(3) tranxt.F90 : semi-implicit hydrostatic pressure gradient : change the coefficients to take into account the Asselin filter parameter
 
-This update is part of the LOCEAN.8 task (Update of the ocean physics) due by June 25th
+   time mean T and S for the semi implicit hpg computation is now    rbcp*ta+(2-rbcp)*tn+rbcp*tb 
+   with rbcp=(1+atfp)*(1+atfp*atfp) / 4, and atfp is the Asselin filter parameter. It used to be (ta+2*tn + tb) / 4.
 
+   The effect of the change is to further extend the stability limit of the time stepping scheme when ln_dynhpg_imp = T
+
+
+=== Current missing points ===
+
+(1) and (2)
 
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