Changes between Version 7 and Version 8 of Users/ModelInterfacing/AGRIF

Timestamp:

2018-08-30T16:15:59+02:00 (5 years ago)

Author:

jchanut

Comment:

--

Users/ModelInterfacing/AGRIF

@@ -158 +158 @@
   }}}
 
- * Number of ghost cells change:
+ * Important notice concerning the change of ghost cells number:
 The default number of ghost cells (i.e. the number of cells that serve as open boundary data provision) has been increased from 1 to 3 in NEMO 4.0. This allows to properly handle boundary conditions for numerical scheme that have a discretization order greater than 2. On the user point of view this does not change anything except in the definition of level 1 grids in the AGRIF_FixedGrids.in file. In order to retrieve exactly the position of a nested grid in NEMO 4.0 one has to shift indices by 2 points to the south-west. Taking the VORTEX example above for NEMO 4.0, the "old" NEMO 3.6 corresponding file would contain:
 {{{
@@ -165 +165 @@
 0
 }}}
+Of course, output files are now greater by 4 points in each direction.
 
 == Available in the forthcoming 4.0