Changes between Version 19 and Version 20 of 2009WP/2009Stream3

Timestamp:

2009-10-20T16:07:57+02:00 (15 years ago)

Author:

sga

Comment:

--

2009WP/2009Stream3

@@ -53 +53 @@
 
 === S3.2-b — Revisit of mass and salt fluxes between ice, ocean and air ===
-         '''Status :''' on going work (NEMO-Southampton). [[BR]]
-         As a consequence of the embedding of sea-ice into the ocean (see S3.2-c), the total mass of salt of the combined sea-ice/ocean system is 
+         """Motivation:""" As a consequence of the embedding of sea-ice into the ocean (see S3.2-c), the total mass of salt of the combined sea-ice/ocean system is 
          conserved by removing a volume of water from the ocean when ice forms or adding a volume of water when it melts.  When ice forms, salt contained
          in the water is returned to the ocean, less the salt retained in the ice itself.  When ice melts, the salt contained is added back to the ocean.[[BR]]
+         '''Status :''' see S3.2-c [[BR]]
 
 === S3.2-c — Embedding sea-ice inside the ocean ===
-         '''Status :''' on going work (NEMO-Southampton). [[BR]]
-         To improve the coupling between the sea-ice and ocean models, we embed the sea-ice into the ocean by changing the volume of the ocean and 
-         depressing the ocean interface by a depth equal to the mean ice draft.  The latter is calculated as the water equivalent of the total ice and snow mass in the 
-         model grid box using in-situ local densities of seawater.  The pressure gradient that takes into account the total weight of sea ice and snow in the top
-         model grid box is added to the ocean momentum budget. The vertical coordinate is redefined for the whole water column.[[BR]]
-         The above scheme has been implemented and tested in a 100-year long integration of an ORCA2-LIM2 configuration using both linear and non-linear 
-         free surface options.  It has also been tested for short runs in the ORCA2-LIM3 configurations.  A longer run in ORCA2-LIM3 will take place early in 2010
-         and the code committed for the NEMO 3.3 release.
+         """Motivation:""" To improve the coupling between the sea-ice and ocean models, we embed the sea-ice into the ocean by changing the volume of 
+         the ocean and depressing the ocean interface by a depth equal to the mean ice draft.  
+         The latter is calculated as the water equivalent of the total ice and snow mass in the model grid box using in-situ local densities of seawater.  
+         The pressure gradient that takes into account the total weight of sea ice and snow in the top model grid box is added to the ocean momentum budget. 
+         The vertical coordinate is redefined for the whole water column.[[BR]]
+         '''Status :''' The above scheme has been implemented and tested at NOCS in a 100-year long integration of an ORCA2-LIM2 configuration using both 
+         linear and non-linear free surface options.  
+         It has also been tested for short runs in the ORCA2-LIM3 configurations.  
+         A longer run in ORCA2-LIM3 will take place early in 2010 and the code committed for the NEMO 3.3 release.
 
 === S3.2-d — New advection schemes ===
@@ -72 +73 @@
 
 === S3.2-e — Lateral ocean physics ===
-         Isoneutral operator, skew flux, Visbeck coefficients, slope limitation. [[BR]]
 
-         Working prototype code for the iso-neutral and skew-flux operator is under revision and will be ready for the 3.3 release. Considerable care has been taken in the formulation to ensure the tensorial representation is consistent with the variable volume layers (S-coordinate/z* representation). This has been documented and will be provided with the release. Process model studies with this code have been successfully completed. Options for slope limiting have been considered and will be thoroughly tested before release.  [[BR]]
-        '''Status :''' on going work (NEMO-Southampton). [[BR]]
+         """Status: """ Working prototype code for the iso-neutral and skew-flux operator is under revision at NOCS and will be ready for the 3.3 release. Considerable care has been taken in the formulation to ensure the tensorial representation is consistent with the variable volume layers (S-coordinate/z* representation). This has been documented and will be provided with the release. Process model studies with this code have been successfully completed. Options for slope limiting have been considered and will be thoroughly tested before release.  [[BR]]
 
         Aiki formulation. (NEMO-Paris) [[BR]]
@@ -142 +141 @@
 
 === S3.3-f — AGRIF and sea-ice ===
-          (from 0 order to LIM2 and 3 fully AGRIFed) (3 years, started in 2008)[[BR]]
-          The rheology scheme in LIM is not yet compatible with the AGRIF nesting option when sea ice occurs
+          """Motivation:""" The rheology scheme in LIM is not yet compatible with the AGRIF nesting option when sea ice occurs
           across the boundary between a nest and its parent.  Two approaches are being taken to address this.[[BR]]
           1.  Switch off the ice model in the nest and use AGRIF code to interpolate the fluxes into the nest.
                In this way, the nest feels the presence of sea ice only through the fluxes at the larger scale.
-               This is the "zero order" solution. NOCS has implemented and tested this and it is planned to make
-               it available at the end of 2009 as a separate branch. 
-          2.  Fully AGRIF'ed scheme
+               This is the "zero order" solution. [[BR]] 
+          2.  Fully AGRIF'ed scheme[[BR]]
+          """Status:""" 
+          1. NOCS has implemented and tested the zero order solution and it is planned to make it available at the end of 2009 as a separate branch.[[BR]]
+          2. Full solution[[BR]]
 
 === S3.3-g — Development of TAM ===