Changes between Version 9 and Version 10 of doc/app/ocean_parameters

Timestamp:

Apr 16, 2021 2:48:29 PM (4 years ago)

Author:

raasch

Comment:

--

doc/app/ocean_parameters

@@ -3 +3 @@
 
 [[NoteBox(note,This page is part of the **Ocean mode** documentation. \\ Since revision r3303 the ocean mode has been \\ modularized and has an own parameter namelist. \\It contains a listing of all PALM input parameters used to steer the ocean mode. \\ For an overview of all ocean-mode-related pages\, see the **[wiki:doc/tec/ocean ocean mode main page]**.)]]
+
+Switching on the ocean mode has several effects:
+
+    * An additional prognostic equation for salinity is solved.
+    * The potential temperature in buoyancy and stability-related terms is replaced by potential density.
+    * Potential density is calculated from the equation of state for seawater after each time step, using the algorithm proposed by Jackett et al. (2006, J. Atmos. Oceanic Technol., 23, 1709-1728).[[BR]]
+      So far, only the initial hydrostatic pressure is entered into this equation.
+    * z=0 (sea surface) is assumed at the model top (vertical grid index k=[wiki:doc/app/initialization_parameters#nzt nzt] on the w-grid), with negative values of z indicating the depth.
+    * Initial profiles are constructed (e.g. from [wiki:doc/app/initialization_parameters#pt_vertical_gradient pt_vertical_gradient] / [wiki:doc/app/initialization_parameters#pt_vertical_gradient_level pt_vertical_gradient_level]) starting from the sea surface, using surface values given by [wiki:doc/app/initialization_parameters#pt_surface pt_surface], [#sa_surface sa_surface], [wiki:doc/app/initialization_parameters#ug_surface ug_surface], and [wiki:doc/app/initialization_parameters#vg_surface vg_surface].
+    * Zero salinity flux is used as default boundary condition at the bottom of the sea.
+    * If switched on, random perturbations are by default imposed to the upper model domain from zu(nzt*2/3) to zu(nzt-3).\\\\
+Relevant parameters to be exclusively used for steering ocean mode runs are [#bc_sa_t bc_sa_t], [#bottom_salinityflux bottom_salinityflux], [#sa_surface sa_surface], [#sa_vertical_gradient sa_vertical_gradient], [#sa_vertical_gradient_level sa_vertical_gradient_level], and [#top_salinityflux top_salinityflux].\\\\
+
+
+
 '''NAMELIST group name:''' [=#ocean_parameters '''{{{ocean_parameters}}}''']
 ||='''Parameter Name'''  =||='''[../fortrantypes FORTRAN]\\[../fortrantypes Type]'''  =||='''Default\\Value'''  =||='''Explanation'''  =||