tune_nemo.md

 
 * [Tune NEMO](#tune-nemo)
+    * [Vertical grid](#tune-nemo-vertical-grid)
     * [Namelist key](#tune-nemo-namelist-key)
     * [Tuning config](#tune-nemo-tuning-config)
     * [Set diags](#tune-nemo-set-diags) 
-    * 
+
+
+
+<a name="tune-nemo"></a>
+===============================
+## Vertical grid
+
+
+Here graph for ORCA2 ORCA025 ORCA12 vertical grid depth* and e3*
+
+Normally, common vertical grid is used , if not (for one annther config..)  and there is no a lot 
+can be be plotted here
+
+
+talk about **rn_hmin** trick key on NESTING or DOMAIN_CFG tools 
+
 
 
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@@ -26,15 +42,10 @@
 
 
 
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 ========================
 #### Some Tuning for your config
 
-_Linear free surfaces_:
-linear free surface (constant volume) case : e3 before, now and after are set equal one for all, and we use exactly the same calculation as in non-linear case (except that update of e3 at each time-step is by-passed)
-
-
 
 _VVL_: