Changeset 3074 for branches/2011/dev_NOC_2011_MERGE/DOC/TexFiles/Chapters/Chap_DYN.tex

Timestamp:

2011-11-10T13:43:36+01:00 (12 years ago)

Author:

acc

Message:

Branch dev_NOC_2011_MERGE. #874. Step 11. Merge in changes from the dev_r2802_NOCL_prjhpg. Partially imposed coding standards (more could be done); added missing namelist changes and added first attempt at documentation

File:

• branches/2011/dev_NOC_2011_MERGE/DOC/TexFiles/Chapters/Chap_DYN.tex (modified) (1 diff)

branches/2011/dev_NOC_2011_MERGE/DOC/TexFiles/Chapters/Chap_DYN.tex

@@ -633 +633 @@
 $\bullet$ Rotated axes scheme (rot) \citep{Thiem_Berntsen_OM06} (\np{ln\_dynhpg\_rot}=true)
 
-Note that expression \eqref{Eq_dynhpg_sco} is used when the variable volume 
+$\bullet$ Pressure Jacobian scheme (prj) \citep{Thiem_Berntsen_OM06} (\np{ln\_dynhpg\_prj}=true)
+
+Note that expression \eqref{Eq_dynhpg_sco} is commonly used when the variable volume 
 formulation is activated (\key{vvl}) because in that case, even with a flat bottom, 
 the coordinate surfaces are not horizontal but follow the free surface 
-\citep{Levier2007}. The other pressure gradient options are not yet available.
+\citep{Levier2007}. Only the pressure jacobian scheme (\np{ln\_dynhpg\_prj}=true) is available as an 
+alternative to the default \np{ln\_dynhpg\_sco}=true when \key{vvl} is active.  The pressure Jacobian scheme uses 
+a constrained cubic spline to reconstruct the density profile across the water column. This method
+maintains the monotonicity between the density nodes and is of a higher order than the linear
+interpolation method. The pressure can be calculated by analytical integration of the density profile and
+a pressure Jacobian method is used to solve the horizontal pressure gradient. This method should
+provide a more accurate calculation of the horizontal pressure gradient than the standard scheme.
 
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